Background There is a need for interdisciplinary research to better understand how pedagogical approaches in primary physical education (PE) can support the linked development of physical, cognitive and affective aspects of physical literacy and physical activity behaviors in young children living in deprived areas. The Skill Acquisition Methods fostering Physical Literacy in Early-Physical Education (SAMPLE-PE) study aims to examine the efficacy of two different pedagogies for PE, underpinned by theories of motor learning, to foster physical literacy. Methods SAMPLE-PE will (...) be evaluated through a cluster-randomized controlled trial targeting 5–6 year old children from schools located in areas of high deprivation in Merseyside, North-West England. Schools will be randomly allocated to one of three conditions: Linear Pedagogy, Non-linear Pedagogy, or Control. Non-linear and Linear Pedagogy intervention primary schools will receive a PE curriculum delivered by trained coaches over 15 weeks, while control schools will follow their usual practice. Data will be collected at baseline (T0), immediately post-intervention (T1), and 6 months after the intervention has finished (T2). Children’s movement competence is the primary outcome in this trial. Secondary outcomes include physical activity, perceived competence, motivation, executive functions, and self-regulation. An extensive process evaluation will also examine implementation factors such as intervention context, reach, dose, fidelity and acceptability. Discussion The SAMPLE-PE project will enable better understanding surrounding how to operationalise physical literacy through enrichment of PE practices in early PE. The study will provide robust scientific evidence regarding the efficacy of underpinning PE pedagogy with theories of motor learning to promote the development of physical literacy. Trial Registration Retrospectively registered on 5th September 2018 at ClinicalTrials.gov, a resource provided by the U.S. National Library of Medicine (Identifier: NCT03551366). (shrink)

In this paper, I argue that Michelangelo Antonioni, in his first full-length colour feature, Red Desert (Il Deserto Rosso, 1964), uses cinematic language to explore what contemporary psychoanalyst Julia Kristeva, decades later, has called the crisis of primary narcissism, one of the 'new maladies' afflicting the modern subject, that she describes in Tales of Love (1983). In examining the struggles of subject formation, Antonioni poetically describes the devastating breakdown of both subjectivity and intersubjectivity in conditions of late modernity that Kristeva (...) details through her own psychoanalytic account. Into Antonioni's infamous statement 'Eros is sick', we can read Kristeva's suggestion that Narcissus, our capacity for love and loss, separateness and idealization—the very foundation for our being with others—is in a state of serious affliction. Through the trials of his main protagonist, Giuliana, Antonioni reveals that the acquisition of a distinct, differentiated identity, one that allows the subject to establish and maintain meaningful relationships and ethical bonds, without the risk of psychic disintegration, has become highly problematic—reaching the level of a collective crisis, rather than remaining an issue of individual illness. For Antonioni, psychic survival in the modern world is not merely a question of seamless integration, but a form of (dis)adaptation: the recognition of severance and of separation, both from nature and our own nature, that allows one to affirm her environment and act as an responsive agent in the world, without being overwhelmed or engulfed by otherness, or alterity. In Kristeva's terms, this involves the capacity to bear and, even, to creatively elaborate, the necessity of loss and separation from the primal (m)other—a painful process to which Giuliana eventually submits. (shrink)

Deictic words are considered the earliest words which children acquire at the stage of two-word-utterance. However, mastering them like adults may take more time. This paper investigates how L2 children comprehend and produce English spatial deixis ‘here’, ‘there’, ‘this’, and ‘that’ by observing and documenting their responses and reactions in hide-and-seek game. It also aims to find out the children’s obstacles in acquiring these words, such as proximity bias and egocentrism. The subjects are Arabic children of ages four, five, and (...) six who acquire English as a second language in international schools in Riyadh, Saudi Arabia. They performed two types of tasks: comprehension task and production task. Both tasks contained two trials: same perspective and the different perspective. Based on the results, children did better in comprehending the spatial deixis than in producing them. Moreover, the results showed that there was no proximity bias happened with children in this study. In addition, the results of the two trials in both tasks illustrated that changing the deictic center improves with age. Although the study provides some significant results, there should be an increase in the number of the samples in order to make the results generalized. (shrink)

Two experiments were run to demonstrate the presence of a partial reinforcement extinction effect (PREE) and a partial punishment effect (PPE) 4 weeks after training in a 1-trial/day procedure. In the PREE paradigm, two groups of animals were trained to run a straight alley for food reward; one group was rewarded on every trial (CRF), whereas the other was rewarded on only 50% of the trials (PRF). In the test phase, extinction, no reward was present on any trial. Four (...) weeks after the end of acquisition, and subsequent to 7 days of CRF retraining, PRF animals showed greater resistance to extinction than did their CRF controls. The PPE paradigm resembled the PREE paradigm in all aspects, except that mild electric foot shock, together with the food reward, was used instead of nonreward on 50% of the acquisition trials. In the test phase, all animals were shocked and given a food reward on every trial. Four weeks after the end of acquisition and retraining, the animals with previous experience of shock in acquisition showed greater resistance to punishment than did their controls. (shrink)

Advances in neuromodulation and an improved understanding of the anatomy and circuitry of psychopathology have led to a resurgence of interest in surgery for psychiatric disease. Clinical trials exploring deep brain stimulation (DBS), a focally targeted, adjustable and reversible form of neurosurgery, are being developed to address the use of this technology in highly selected patient populations. Psychiatric patients deemed eligible for surgical intervention, such as DBS, typically meet stringent inclusion criteria, including demonstrated severity, chronicity and a failure of (...) conventional therapy. Although a humanitarian device exemption by the US Food and Drug Administration exists for its use in obsessive-compulsive disorder, DBS remains a largely experimental treatment in the psychiatric context, with its use currently limited to clinical trials and investigative studies. The combination of a patient population at the limits of conventional therapy and a novel technology in a new indication poses interesting challenges to the informed consent process as it relates to clinical trial enrollment. These challenges can be divided into those that relate to the patient, their disease and the technology, with each illustrating how traditional conceptualisations of research consent may be inadequate in the surgical psychiatry context. With specific reference to risk analysis, patient autonomy, voluntariness and the duty of the clinician-researcher, this paper will discuss the unique challenges that clinical trials of surgery for refractory psychiatric disease present to the consent process. Recommendations are also made for an ethical approach to clinical trial consent acquisition in this unique patient population. (shrink)

Over the past decade AIDS research has turned toward the use of pharmacology in HIV prevention, including pre-exposure prophylaxis (PrEP): the use of HIV medication as a means of preventing HIV acquisition in those who do not have it. This paper explores the contradictory reasons offered in support of PrEP—to empower women, to provide another risk-reduction option for gay men—as the context for understanding the social meaning of the experimental trials that appear to show that PrEP works in (...) gay men and heterosexual couples but not single women. The PrEP debates reveal the different ideas about “demedicalization” in the earlier gay health and women’s health movements and highlight the relationship between health activism and critique of research ethics in the context of a global pharmaceutical market. (shrink)

Background HIV prevention trials conducted among disadvantaged vulnerable at-risk populations in developing countries present unique ethical dilemmas. A key concern in bioethics is the validity of informed consent for trial participation obtained from research subjects in such settings. The purpose of this study was to investigate the effectiveness of a continuous informed consent process adopted during the MDP301 phase III vaginal microbicide trial in Mwanza, Tanzania. Methods A total of 1146 women at increased risk of HIV acquisition working (...) as alcohol and food vendors or in bars, restaurants, hotels and guesthouses have been recruited into the MDP301 phase III efficacy and safety trial in Mwanza. During preparations for the trial, participatory community research methods were used to develop a locally-appropriate pictorial flipchart in order to convey key messages about the trial to potential participants. Pre-recorded audio tapes were also developed to facilitate understanding and compliance with gel-use instructions. A comprehension checklist is administered by clinical staff to all participants at screening, enrolment, 12, 24, 40 and 50 week follow-up visits during the trial. To investigate women's perceptions and experiences of the trial, including how well participants internalize and retain key messages provided through a continuous informed consent process, a random sub-sample of 102 women were invited to participate in in-depth interviews conducted immediately after their 4, 24 and 52 week follow-up visits. Results 99 women completed interviews at 4-weeks, 83 at 24-weeks, and 74 at 52 weeks. In all interviews there was evidence of good comprehension and retention of key trial messages including that the gel is not currently know to be effective against HIV; that this is the key reason for conducting the trial; and that women should stop using gel in the event of pregnancy. Conclusions Providing information to trial participants in a focussed, locally-appropriate manner, using methods developed in consultation with the community, and within a continuous informed-consent framework resulted in high levels of comprehension and message retention in this setting. This approach may represent a model for researchers conducting HIV prevention trials among other vulnerable populations in resource-poor settings. Trial registration Current Controlled Trials ISRCTN64716212. (shrink)

The successful demonstration that antiretroviral (ARV) drugs can be used in diverse ways to reduce HIV acquisition or transmission risks – either taken as pre-exposure prophylaxis (PrEP) by those who are uninfected or as early treatment for prevention (T4P) by those living with HIV – expands the armamentarium of existing HIV prevention tools. These findings have implications for the design of future HIV prevention research trials. With the advent of multiple effective HIV prevention tools, discussions about the ethics (...) and the feasibility of future HIV prevention trial designs have intensified. This article outlines arguments concerning the inclusion of newly established ARV-based HIV prevention interventions as standard of prevention in HIV prevention trials from multiple perspectives. Ultimately, there is a clear need to incorporate stakeholders in a robust discussion to determine the appropriate trial design for each study population. (shrink)

Macphail’s (1985) null hypothesis challenged researchers to demonstrate any differences in intelligence between vertebrate species. Rather than focus on differences, we asked whether rats would show the same unexpected, counterintuitive features of skill learning observed in humans: Factors that degrade performance during acquisition often enhance performance in a subsequent retention/autonomy phase. Providing post-trial “knowledge of results” (KR) on 30%-67% of trials instead of 100% degrades accuracy, yet increases retention in a subsequent phase without KR. We tested this feature (...) by providing three groups of rats with KR on every trial (100% KR), 67% KR, or 0% KR. We also provided operant feedback in every trial for completing the left-right lever-press skill (food for correct sequences, timeout for all others). In the autonomy phase, we assessed their ability to complete the skill independently—in the absence of differential cues and KR feedback. In agreement with human performance in the autonomy phase, 67% KR yielded higher skill accuracy than providing 100% KR. Also, providing 67% KR improved skill accuracy above that observed with operant feedback alone (0% KR). Rather than degrading performance during acquisition, the 67% KR condition yielded unexpected higher accuracy than the other conditions. Accuracy increased systematically across our extended acquisition phase, which provided each rat with over 3600 trials compared to 20-30 trials for human studies. Providing limited KR promoted skill learning in rats as it does in humans, consistent with the conjecture that both species share common learning processes. Introducing difficulties to rats during training improved their autonomy. (shrink)

Objective Adolescents have had very limited access to research on biomedical prevention interventions despite high rates of HIV acquisition. One concern is that adolescents are a vulnerable population, and trials carry a possibility of harm, requiring investigators to take additional precautions. Of particular concern is preventive misconception, or the overestimation of personal protection that is afforded by enrolment in a prevention intervention trial. Methods As part of a larger study of preventive misconception in adolescent HIV vaccine trials, (...) we interviewed 33 male and female 16–19-year-olds who have sex with men. Participants underwent a simulated HIV vaccine trial consent process, and then completed a semistructured interview about their understanding and opinions related to enrolment in a HIV vaccine trial. A grounded theory analysis looked for shared concepts, and focused on the content and process of adolescent participants’ understanding of HIV vaccination and the components of preventive misconception, including experiment, placebo and randomisation. Results Across interviews, adolescents demonstrated active processing of information, in which they questioned the interviewer, verbally worked out their answers based upon information provided, and corrected themselves. We observed a wide variety of understanding of research concepts. While most understood experiment and placebo, fewer understood randomisation. All understood the need for safer sex even if they did not understand the more basic concepts. Conclusions Education about basic concepts related to clinical trials, time to absorb materials and assessment of understanding may be necessary in future biomedical prevention trials. (shrink)

Purpose: The purpose of this article was to compare different modes of feedback on 30 min cycling time-trial performance in non-cyclist’s and cyclists-triathletes, and investigate cyclists-triathlete’s information acquisition.Methods: 20 participants performed two 30 min self-paced cycling time-trials with either a single feedback or multiple feedback. Cyclists-triathlete’s information acquisition was also monitored during the multiple feedback trial via an eye tracker. Perceptual measurements of task motivation, ratings of perceived exertion and affect were collected every 5 min. Performance variables (...) and heart rate were recorded continuously.Results: Cyclists-triathletes average power output was greater compared to non-cyclists with both multiple feedback. Whereas, cyclists-triathletes 30 min cycling time-trial performance was impaired with multiple feedback compared to single feedback. Cyclists-triathlete’s primary and secondary objects of regard were power and elapsed time. However, total glance time during multiple feedback decreased from the first 5 min to the last 5 min.Conclusion: Cyclists-triathletes indoor 30 min cycling TT performance was impaired with multiple feedback compared to single feedback. Whereas non-cyclist’s performance did not differ between multiple and single feedback. Cyclists-triathletes glanced at power and time which corresponds with the wireless sensor networks they use during training. However, total glance time during multiple feedback decreased over time, and therefore, overloading athletes with feedback may decrease performance in cyclists-triathletes. (shrink)

This paper explores the Eichmann trial in its dimension as a living, powerful event, whose impact is defined and measured by the fact that it is "not the same for all." I examine this legal event from two perspectives: Hannah Arendt's and my own. I pledge my reading against Arendt's, in espousing the State's vision of the trial, but in interpreting the legal meaning of this vision us one that exceeds its own deliberateness and distinct from the State's ideology. I (...) use Nietzsche's terms to contrast "critical history" with "monumental history." Whereas the official State vision of the trial is, I propose, precisely one of "monumental history, " Arendt's vision offers a substitutive "critical history." I analyze, one against the other, what I call the monumental legal vision of the Eichmann trial and the critical vision offered by Arendt. Exploring thus the monumental versus the critical as two opposed but non-exclusive and, in fact, profoundly complementary perspectives, I examine, side by side, the Eichmann trials' monumental focus on the victims and Arendt's critical objections to this focus: her objections, I show, are based in a jurisprudential conservatism coexisting with a historiographical radicalism. The Eichmann trial, in my view, is on the contrary and diametrically, historiographically conservative, but jurisprudentially revolutionary. I argue that Arendt failed to see the way in which the trial in effect did not simply repeat the victim's story, but historically created it for the first time. I submit, in other words, that the Eichmann trial legally created a radically original and new event: not a rehearsal of a given story, but a groundbreaking narrative event that is itself historically and legally unprecedented. Examining the trial's transformation of victims into prosecution witnesses, I analyze the victim-oriented focus of the trial as s legal process of translation of private traumas into public ones and as a public scene of the recovery of language and legal subjecthood by victims who were formerly defined by the oppressor's language and who were, therefore, not just injured, but essentially robbed of a language in which to articulate their injury and name their victimization. I argue that the Eichmann trial expanded the space available for moral deliberation in creating a new legal language: the trial was the victim's trial only insofar as it was now the victims who, against all odds, were precisely writing their own history. To enable such a writing, the Eichmann trial had to enact not simply memory, but memory as change. It had to dramatize upon its legal stage before the audience nothing less than a conceptual revolution in the victim. And this, in fact, is what the trial did This historically unprecedented revolution in the victim that was operated in and by the Eichmann trial is, I suggest, the trial's major contribution not only to Jews, but to history, to law, to culture - to humanity at large. I further argue that as a singular legal event, the Eichmann trial calls for a rethinking - and sets in motion a transvaluation - of the structures and the values of conventional criminal law. I submit that the quintessence of the Eichmann trial is the acquisition of semantic authority by victims. It was the newly acquired semantic and historical authority of this revolutionary story that, for the first time, created what we know today as the Holocaust: a theme of international discussion and world conversation designating the experience of the victims and referring to the crime against the Jewish people independently from the political and military story of the Second World War. (shrink)

The aim of unpaid volunteer classroom assistants is to give extra support to children learning to read. The impact of using volunteers to improve children's acquisition of reading skills is unknown. To assess whether volunteers are effective in improving children's reading, we undertook a systematic review of all relevant randomised controlled trials (RCTs). An exhaustive search of all the main electronic databases was carried out (i.e. BEI, PsycInfo, ASSIA, PAIS, SSCI, ERIC, SPECTR, SIGLE). We identified eight experimental studies, (...) of which seven were RCTs. One of the RCTs was excluded because it did not meet the inclusion criteria. One RCT randomised intact classes and the other six studies randomised individual children and could therefore be included in a meta-analysis. All of the trials were fairly small, with the largest including 99 pupils. Four of the trials showed a positive outcome, while three showed a negative effect and the remaining study was equivocal. We pooled the four most homogeneous trials. The pooled data indicated an effect size of 0.19, which was not statistically significant ( p = 0.54, 95% confidence interval = -0.31 to 0.68). Overall, volunteering appeared to have a small effect on reading outcomes. However, the confidence intervals were wide, which could conceal a potentially large benefit or a harmful effect. Thus, more good quality RCTs are required in order to provide more conclusive evidence. (shrink)

BackgroundIn many Western countries like Germany, the social integration of children with an immigrant background has become an urgent social tasks. The probability of them living in high-risk environments and being disadvantaged regarding health and education-related variables is still relatively higher. Yet, promoting language acquisition is not the only relevant factor for their social integration, but also the support of earlier developmental processes associated with adequate early parenting in their first months of life. The Emotional Availability Scales measure the (...) quality of caregiver-child-interactions as an indicator of the quality of their relationship and thus of such early parenting, focusing on mutual and emotional aspects of their interaction.MethodThis pilot study examined in a randomized controlled trial the effects of the prevention project First Steps regarding the hypothesis that the Emotional Availability improved to a greater extent in “difficult-to-reach” immigrant mother-child dyads in a psychoanalytically oriented early intervention compared to a usual care intervention offered by paraprofessionals with an immigrant background. A sample of N = 118 immigrant women in Germany from 37 different countries and their children was compared with regard to the parental EA-dimensions sensitivity, structuring, non-intrusiveness and non-hostility and the child dimensions responsiveness to and involvement of the caregiver in the pre-post RCT design.Results and ConclusionDifferent from what was expected, repeated ANOVAs revealed no significant pre-post group differences for the parental dimensions. For the child dimensions the effect of time of measurement was highly significant, which can be interpreted as mostly natural developmental effects. Still, on the level of simple main effects for each intervention, only in the FIRST STEPS groups child responsiveness significantly improved. When controlled for confounding variables, a significant interaction effect for maternal sensitivity in favor of the FIRST STEPS intervention was found. The systematic group differences indicate that the more extensive and professional intervention, focusing on the individual needs of the participants, is more suitable to support the quality of the mother-child-relationship amongst immigrant mother-child dyads than usual care. The results are discussed taking into account the context of the maternal migration process and potential maternal traumatization.Clinical Trial Registration[https://clinicaltrials.gov], identifier [DRKS00004632]. (shrink)

In July 2012, based on evidence from two major trials, the United States Food and Drug Administration approved the use of combined oral tenofovir/emtricitabine as pre-exposure prophylaxis for people at high risk of HIV acquisition. PrEP effectiveness is marred by poor adherence, however, even in trial populations, thus it is not a magic bullet for HIV prevention. It is, however, the most effective biomedical HIV prevention intervention available for people at high risk of HIV, particularly those who have (...) receptive sex and lack the power to negotiate condom use. Accordingly, there are compelling reasons to compare future experimental HIV prevention interventions against PrEP. The interests both of trial participants and of science are served by using PrEP as comparator: Not only would HIV incidence be reduced, but also the question of whether new interventions were superior to best proven interventions, in a given setting, would be answered comprehensively. (shrink)

To determine the effects of early undernutrition on learning and long-term memory, Swiss mice were cross-fostered randomly at birth to produce litter sizes of 6 and 16, thereby providing “normally nourished” and “undernourished” conditions. At 28 days of age, the pups were housed in groups of 3 and 4, with ad-lib access to food and water until testing began at 60 days of age. Each mouse received 50 active-avoidance training trials daily for 14 consecutive days. Retention testing began 14 (...) days after the end of original training and consisted of 50 trials daily for 5 days. Overall, mice reared in large litters suffered deficits in learning but not in long-term memory. (shrink)

This study evaluated the biological dimension of meditation and self-transcendent states. A convenience sample of 513 participants was drawn from attendees at a 4-day guided meditation workshop. Half were randomly assigned to an active placebo control intervention. All were assessed on a variety of measures, both psychological [anxiety, pain, posttraumatic stress disorder, positive emotions, and transcendent states], and physiological. Additional biological assessments including salivary immunoglobulin-A, cortisol, and Quantitative Electroencephalography were obtained from subset of the Experimental group. No significant difference in (...) psychological symptoms or positive emotions was observed between Experimental and placebo groups at baseline. At post-test, significant improvements were noted in the Experimental group, including a 49.5% median increase in SIgA, though cortisol remained unchanged. qEEG z-score analysis identified sustained stress reduction, including delta frequency band amplitude increases, high beta decreases, and faster acquisition of sustained alpha states. Psychological symptoms also improved on all measures. At 6-month follow-up, PTSD and somatic symptoms significantly improved from baseline, and post-test versus 6-month follow-up results indicated significant increases in happiness and spiritual and physical oneness, along with decreases in depressive symptoms. These findings suggest that autonomic self-regulation and transcendent states may be measured in both biological and psychological dimensions and are associated with pervasive health benefits. (shrink)

Reinforcement learning approaches to cognitive modeling represent task acquisition as learning to choose the sequence of steps that accomplishes the task while maximizing a reward. However, an apparently unrecognized problem for modelers is choosing when, what, and how much to reward; that is, when (the moment: end of trial, subtask, or some other interval of task performance), what (the objective function: e.g., performance time or performance accuracy), and how much (the magnitude: with binary, categorical, or continuous values). In this (...) article, we explore the problem space of these three parameters in the context of a task whose completion entails some combination of 36 state–action pairs, where all intermediate states (i.e., after the initial state and prior to the end state) represent progressive but partial completion of the task. Different choices produce profoundly different learning paths and outcomes, with the strongest effect for moment. Unfortunately, there is little discussion in the literature of the effect of such choices. This absence is disappointing, as the choice of when, what, and how much needs to be made by a modeler for every learning model. (shrink)

Prediction-based accounts of language acquisition have the potential to explain several different effects in child language acquisition and adult language processing. However, evidence regarding the developmental predictions of such accounts is mixed. Here, we consider several predictions of these accounts in two large-scale developmental studies of syntactic priming of the English dative alternation. Study 1 was a cross-sectional study (N = 140) of children aged 3−9 years, in which we found strong evidence of abstract priming and the lexical (...) boost, but little evidence that either effect was moderated by age. We found weak evidence for a prime surprisal effect; however, exploratory analyses revealed a protracted developmental trajectory for verb-structure biases, providing an explanation as for why prime surprisal effects are more elusive in developmental populations. In a longitudinal study (N = 102) of children in tightly controlled age bands at 42, 48, and 54 months, we found priming effects emerged on trials with verb overlap early but did not observe clear evidence of priming on trials without verb overlap until 54 months. There was no evidence of a prime surprisal effect at any time point and none of the effects were moderated by age. The results relating to the emergence of the abstract priming and lexical boost effects are consistent with prediction-based models, while the absence of age-related effects appears to reflect the structure-specific challenges the dative presents to English-acquiring children. Overall, our complex pattern of findings demonstrates the value of developmental data sets in testing psycholinguistic theory. (shrink)

Previous research shows that people can use the co-occurrence of words and objects in ambiguous situations (i.e., containing multiple words and objects) to learn word meanings during a brief passive training period (Yu & Smith, 2007). However, learners in the world are not completely passive but can affect how their environment is structured by moving their heads, eyes, and even objects. These actions can indicate attention to a language teacher, who may then be more likely to name the attended objects. (...) Using a novel active learning paradigm in which learners choose which four objects they would like to see named on each successive trial, this study asks whether active learning is superior to passive learning in a cross-situational word learning context. Finding that learners perform better in active learning, we investigate the strategies and discover that most learners use immediate repetition to disambiguate pairings. Unexpectedly, we find that learners who repeat only one pair per trial—an easy way to infer this pair—perform worse than those who repeat multiple pairs per trial. Using a working memory extension to an associative model of word learning with uncertainty and familiarity biases, we investigate individual differences that correlate with these assorted strategies. (shrink)

Veganic agriculture, often described as farming that is free of synthetic and animal-based inputs, represents an alternative to chemical-based industrial agriculture and the prevailing alternative, organic agriculture, respectively. Despite the promise of veganic methods in diverse realms such as food safety, environmental sustainability, and animal liberation, it has a small literature base. This article draws primarily on interviews conducted in 2018 with 25 veganic farmers from 19 farms in the United States to establish some baseline empirical research on this farming (...) community. Its qualitative perspectives illuminate farmer perceptions of and experiences with veganic growing, including definitions, knowledge acquisition, values, and challenges. Results highlight a lack of agreement about the meaning of veganic agriculture in terms of allowable inputs and scope. Participants have drawn on a wide array of veganic and non-veganic resources to ascend their veganic production learning curves, also relying on experimentation and trial-and-error. Their farming is motivated by a diversity of real and perceived benefits, most notably consistency with veganism, food safety advantages, and plant and soil health benefits. Veganic product sourcing and the dearth of veganic agriculture-specific resources present considerable challenges to farmers. The article briefly discusses possibilities for developing veganic agriculture in the United States, such as through a US-based certification system and farmers’ associations, based on considerations of the trajectory of the US organic farming movement and veganic developments in Europe. Finally, the article suggests the importance of expanded research into soil health and fertility in plant-based systems to support practicing and potential veganic farmers. (shrink)