Time belongs to a handful of categories (like form, symbol, cause) that are genuinely transdisciplinary. Time touches every dimension of our being, every object of our attention - including attention itself. It therefore can belong to no single field of study. Of course, this universalist view of time is not itself universal but rather is a product of the modern age, an age that conceived of itself as the 'new' time. Time has thus gained new importance as a theme of (...) general research with the 'post-modern turn' now manifest in many areas of intellectual endeavor, especially in the humanities and social sciences. 'Chronotypes' are models or patterns through which time assumes practical or conceptual significance. Time is not given but (as the subtitle indicates) fabricated in an ongoing process. Chronotypes are themselves temporal and plural, constantly being made and remade at multiple individual, social, and cultural levels. They interact, they change over time, and they have histories, whose construal is itself an act of temporal construction. This book - an interdisciplinary collaboration of philosophers, historians, literary critics, and anthropologists - examines the ways individuals, societies, and cultures make sense of time by constructing it in diverse patterns. Its title intentionally echoes a concept of narrative theory, Mikhail Bakhtin's 'chronotype', because narrative recurs as a chief form within which we build temporality. The topics treated by these essays range from story-telling to cross-cultural communication, from epistemological debates to concepts of historical periodization, from the construction of life stories to the stratification of social time. (shrink)

According to the Temporal Focus Hypothesis, space–time mappings in people’s minds are shaped by their attentional focus. Previous research has shown that numerous cultural and individual factors underpinning temporal focus may contribute to the direction of space–time mappings in people’s mental models. However, the role of time of day in shaping spatial conceptions of time has not been investigated. In a series of three experiments, Chinese participants, who were more likely to be future-focused in the morning than afternoon, were also (...) more likely to produce a future-in-front mapping. However, this morning future-minded effect can only be found in morning people, suggesting a mediating role of chronotype processes. Taken together, the findings across studies suggest that people’s representations of time may arise from an interaction between a person’s chronotype and time-of-day, a phenomenon that we refer to as the chronotype future-minded effect. (shrink)

Methods Young healthy heterosexual couples underwent sleep-lab-based polysomnography of two sleeping arrangements: individual sleep and co-sleep. Individual and dyadic sleep parameters (i.e., synchronization of sleep stages) were collected. The latter were assessed using cross-recurrence quantification analysis. Additionally, subjective sleep quality, relationship characteristics, and chronotype were monitored. Data were analyzed comparing co-sleep vs. individual sleep. Interaction effects of the sleeping arrangement with gender, chronotype, or relationship characteristics were moreover tested. Results As compared to sleeping individually, co-sleeping was associated with (...) about 10% more REM sleep, less fragmented REM sleep (p = 0.008), longer undisturbed REM fragments (p = 0.0006), and more limb movements (p = 0.007). None of the other sleep stages was significantly altered. Social support interacted with sleeping arrangement in a way that individuals with suboptimal social support showed the biggest impact of the sleeping arrangement on REM sleep. Sleep architectures were more synchronized between partners during co-sleep (p = 0.005) even if wake phases were excluded (p = 0.022). Moreover, sleep architectures are significantly coupled across a lag of ± 5min. Depth of relationship represented an additional significant main effect regarding synchronization, reflecting a positive association between the two. Neither REM sleep nor synchronization was influenced by gender, chronotype, or other relationship characteristics. Conclusion Depending on the sleeping arrangement, couple's sleep architecture and synchronization show alterations that are modified by relationship characteristics. We discuss that these alterations could be part of a self-enhancing feedback loop of REM sleep and sociality and a mechanism through which sociality prevents mental illness. (shrink)

ObjectiveIndividuals with an evening chronotype prefer to sleep later at night, wake up later in the day and perform best later in the day as compared to individuals with morning chronotype. Thus, college students without ADHD symptoms with evening chronotypes show reduced cognitive performance in the morning relative to nighttime. In combination with symptoms presented in attention deficit hyperactivity disorder, we predicted that having evening chronotype renders impairment in attention during the morning, when students require optimal performance, (...) amplifying desynchrony.MethodFour hundred college students were surveyed for evening chronotype and symptoms of ADHD. Of those surveyed, 43 students with evening chronotype performed laboratory attention tasks and were queried about fatigue during morning and evening sessions.ResultsStudents with ADHD symptoms demonstrated a greater decrement in sustained attentional vigilance when abstaining from stimulants and asked to perform cognitive tests at times misaligned with natural circadian rhythms in arousal compared to their non-ADHD counterparts with the same chronotype. While individuals with ADHD symptoms had slower reaction-times during sustained attention tasks in the morning session compared to those without symptoms, there was no significant group difference in working memory performance, even though both groups made more errors in the morning session compared to the evening session.ConclusionThese findings suggest that evening chronotype students with ADHD symptoms are at a greater disadvantage when having to perform sustained attention tasks at times that are not aligned to their circadian rhythm compared to their neuro-typical peers. The implications of this finding may be useful for the provision of disability accommodations to college age students with ADHD when they are expected to perform tasks requiring sustained attention at times misaligned with their circadian rhythms. (shrink)

Humans have been using fire for hundreds of millennia, creating an ancestral expansion toward the nocturnal niche. The new adaptive challenges faced at night were recurrent enough to amplify existing psychological variation in our species. Night-time is dangerous and mysterious, so it selects for individuals with higher tendencies for paranoia, risk-taking, and sociability. During night-time, individuals are generally tired and show decreased self-control and increased impulsive behaviors. The lower visibility during night-time favors the partial concealment of identity and opens more (...) opportunities for disinhibition of self-interested behaviors. Indeed, individuals with an evening-oriented chronotype are more paranoid, risk-taking, extraverted, impulsive, promiscuous, and have higher antisocial personality traits. However, under some circumstances, such as respiratory pandemics, the psychobehavioral traits favored by the nocturnal niche might be counter-productive, increasing contagion rates of a disease that can evade the behavioral immune system because its disease cues are often nonexistent or mild. The eveningness epidemiological liability hypothesis presented here suggests that during the COVID-19 pandemic, the evening-oriented psychobehavioral profile can have collectively harmful consequences: there is a clash of core tendencies between the nocturnal chronotype and the recent viral transmission-mitigating safety guidelines and rules. The pandemic safety protocols disrupt much normal social activity, particularly at night when making new social contacts is desired. The SARS-CoV-2 virus is contagious even in presymptomatic and asymptomatic individuals, which enables it to mostly evade our evolved contagious disease avoidance mechanisms. A growing body of research has indirectly shown that individual traits interfering with social distancing and anti-contagion measures are related to those of the nocturnal chronotype. Indeed, some of the social contexts that have been identified as superspreading events occur at night, such as in restaurants, bars, and nightclubs. Furthermore, nocturnal environmental conditions favor the survival of the SARS-CoV-2 virus much longer than daytime conditions. We compare the eveningness epidemiological liability hypothesis with other factors related to non-compliance with pandemic safety protocols, namely sex, age, and life history. Although there is not yet a direct link between the nocturnal chronotype and non-compliance with pandemic safety protocols, security measures and future empirical research should take this crucial evolutionary mismatch and adaptive metaproblem into account, and focus on how to avoid nocturnal individuals becoming superspreaders, offering secure alternatives for nocturnal social activities. (shrink)

There is growing interest in examining dark personality traits, to better explain malevolent and self-serving behaviour patterns commonly observed in clinical and non-clinical settings. Recently, taxonomies of dark personalities have been developed, along with psychometric tools to measure and delineate between traits including psychopathy, Machiavellianism and narcissism. The extent to which these constructs are distinct or overlapping remains controversial. Psychophysiological research can improve understanding of biological mechanisms contributing to personality that may help to evaluate taxonomies. This study investigated diurnal variations (...) in salivary cortisol (on waking, cortisol awakening response, and at bedtime, over two days) and their relationship to personality traits (Short Dark Triad Scale and IPIP Mini), psychopathology (Depression, Anxiety and Stress Scale; DASS) and quality of life (WHOQOL-BREF) in a non-clinical sample (N=45, 26 females, 19 males, 18-59 years). Dark personality traits correlated with low bedtime cortisol, reduced sleep, depression and poorer quality of life. Hierarchical linear regressions analyses indicated that bedtime cortisol levels significantly accounted for variance in Psychopathy (F(1,39)=5.55, p=.02, R=.52, B=-1.81, 95% CI [-3.37-(-.26)], β=-.33, sr2=.10) and reduced sleep uniquely accounted for variance Machiavellianism (F(2,40)=5.99, p=.01, R=.48, B=1.01, 95% CI [.16-2.02], β=.34, sr2=.11). These data provide preliminary evidence that supports the cortisol hypoarousal hypothesis of Psychopathy and has identified a link between Machiavellianism, sleep-wake cycles, and chronotype. The hypoarousal hypothesis of Psychopathy contends that the hypothalamic-pituitary-adrenal axis is unresponsive to the stress of social engagement. Machiavellianism was predicted by longer days with evidence for an evening chronotype. These findings indicated that the Dark Triad traits have different underlying biological mechanisms that require further exploration. (shrink)

Recent studies have highlighted the relevance of sleep for procrastination at work. Procrastination at work is defined as the irrational delay of the initiation or completion of work-related activities. In line with recent studies, we offer a self-regulation perspective on procrastination. We argue that procrastination is an outcome of depleted self-regulatory resources and that the restoration of self-regulatory resources during high-quality sleep at night would prevent procrastination.AimsIn an attempt to further develop this line of research, the current study aimed to (...) achieve a broader understanding of the relevance of sleep and circadian rhythm for procrastination. Therefore, we explored the effect of sleep quality on procrastination for different chronotypes. We also considered the shift to daylight saving time as a phenomenon that aggravates circadian misalignment and thereby later chronotypes' dependence on high-quality sleep. Specifically, we hypothesized that compared to employees with an earlier chronotype, employees with a later chronotype are more dependent on good sleep at night to prevent procrastination the next day. This effect would be especially pronounced after the shift to daylight saving time.MethodsFor this repeated-measures study, participants were 101 full-time employees. They completed a general questionnaire and day-specific questionnaires on the Monday before and the Monday following the shift to daylight saving time.ResultsThe multilevel analyses showed that employees procrastinated less on days following nights during which they slept better and that later chronotypes experienced more procrastination than earlier chronotypes. Our findings also supported the hypothesis that the relationship between sleep quality and procrastination is stronger for later chronotypes compared to earlier chronotypes on the Monday following the shift to daylight saving time. In other words, the lower the sleep quality of later chronotypes during the previous night, the more they procrastinated on the Monday following the shift to daylight saving time.DiscussionOur findings further corroborate the existing findings on the relevance of sleep and chronotype for well-being and performance at work. (shrink)

Studies on temporality in Sidonius’ letters have so far been dominated by narratological approaches. This article proposes an additional perspective by focusing on social and ethical dimensions of time issues. Drawing from scholarship on both imperial epistolography and ancient timekeeping, I develop a framework for studying temporal-behavior patterns as negotiations of elite habitus. Many letters that provide insights in temporal habits (chronotypes) define also in- and out-groups based on temporal conventions (chronotopes). Time management displays a life order Sidonius can approve (...) or disapprove of. The motif of the clepsydra illustrates this connection between temporal habits and senatorial ethos most vividly. (shrink)

A major aim of the present study was to examine the relationship between time perspective, i.e., habitual ways of relating to the past, present, and future, and sleep quality. A second aim was to test a model by which the expected negative relationship between deviation from a balanced time perspective, a measure taking temporal biases across all three time frames into account, and life satisfaction was mediated by poor sleep quality. To these ends, a sample of young adults completed a (...) version of the Zimbardo Time Perspective Inventory, Pittsburg Sleep Quality Index, and the Satisfaction with Life Scale. A measure of chronotype was in addition included for control purposes. Bivariate analyses revealed that the S-ZTPI subscales Past Negative, Future Negative and Present Fatalistic were associated with poorer sleep quality, with significant associations in the opposite direction for Past Positive and Future Positive. However, DBTP was the strongest predictor of sleep quality, suggesting that time perspective biases have an additive effect on sleep quality. Regression analyses with PSQI as the dependent variable and all six ZTPI subscales as the predictors indicated that time perspective accounted for about 20% of the variance in sleep quality, with Past Negative, Past Positive, and Future Negative as the unique predictors. The results additionally confirmed a strong relationship between DBTP and life satisfaction. Finally, data were consistent with the hypothesis that the association of DBTP and life satisfaction is mediated, in part, by sleep quality. Taken together, the results confirmed a substantial link between time perspective sleep-related problems, factors that may have a negative impact on life satisfaction. (shrink)

Recent studies have shown that making accurate passage of time judgments (POTJs) for long-time intervals is an important cognitive ability. Different temporal domains, such as circadian typology (biological time) and time perspective (psychological time), could have an effect on subjective POTJs, but few studies have investigated the reciprocal influences among these temporal domains. The present study is the first systematic attempt to fill this gap. A sample of 222 participants (53.20% females; 19–60 years) filled in the Zimbardo Time Perspective Inventory (...) for the measurement of time perspective, the reduced version of the Morningness-Eveningness Questionnaire (rMEQ) for chronotypes, and an ad-hoc questionnaire assessing sleep habits during weekdays and the weekend (for social jetlag). The POTJ was measured using a modified version of a pictorial timeline presented at five different moments. Also, participants judged how different temporal expressions were related to the past, present, and future along a 7-point Likert scale. After confirming the association between eveningness and present-hedonism orientation and morningness and future-orientation, we found that evening-types produced higher scores for future expressions. The subjective POTJ expressed in minutes was predicted by Deviation from Balanced Time (DBTP), present-fatalism orientation, and social jetlag. Finally, the rMEQ score, past-positive orientation, and DBTP predicted the difference between subjective and objective POT. The results are discussed offering an explanation in terms of the interconnections between circadian typology, individual time perspective, and the sense of the POT, suggesting the multicomponent nature of the concept of time. (shrink)

Tennysonian shadows : 'in the garden at Swainston' -- Fair ships : a Victorian poetic chronotype -- A Laodicean : Hardy and the philosophy of money -- Sensations of earth : Thomas Hardy and Richard Jefferies -- The guilty river : Wilkie Collins's gothic deafness -- Stevenson's The ebb-tide : missionary endeavour in the islands of light -- Dr Doyle's uncanny prognosis : Sherlock Holmes and the final solution.

The paper reconstructs the key epistemological ideas of Merab Mamardashvili which form the bridge between his philosophy and phenomenology. He advances four key concepts in his sketch of a natural historical epistemology: the geometry of causal experience, the belonging to a certain time, the chronotype of a subject, and the ‘elaboration’ of the mind by consciousness. The concept of “fruitful tautology” leads Mamardashvili to a new aesthetics of thinking. The semiotics, rightfully included in Russian social sciences, assumes that the (...) symbol is a certain universal first element of psychic reality. (shrink)

Bart Keunen’s boldly comprehensive theory of literature springs from the synthesis between narrative time and space forms called the chronotope. The originator of the theory, Mikhail Bakhtin, argued that each literary culture and each genre uses a family of chronotopes that endow the cultures and genres with their specific aesthetic charm, as well as their cognitive and moral strength. After constructing an archeology of the chronotope, Keunen proposes a remarkably original description of the various types of chronotopes. Chronotypes that emphasize (...) conflict are using Greek mythological names to explain equilibrium, or reconciliation, and conflict chronotopes. He then develops a plot typology that covers the whole history of Western narrative culture. With examples and resonances both ancient and modern, Keunen’s Time and Imagination will equip theorists in a wide range of fields with powerful tools for years to come. (shrink)

When the reader turns to a text, he conceives of the narrated events as ordered in time. When the natural philosopher turns to the world, he also conceives of its events as ordered in time—or lately, in space-time. But each has the task of constituting this order on the basis of clues present in what is to be ordered. Interrogating the parallels to be found in their problems and methods, I shall argue that in both cases the definiteness of the (...) relation between the order and what is ordered resides mainly in how the matter is to be conceived, and is underdetermined by the facts. (shrink)

This chapter examines the impact of new concepts of time on the social clocks that individuals and families followed in the context of changing historical time. The type of "time" addressed here is not chronological in the strict sense. Its essence is timing—meaning coincidence, sequencing, coordination, and synchronization of various time clocks, those being individual, collective, and social structural. The chapter defines the concept of "timing" from a life-course and historical perspective. It compares the patterns and perceptions of timing of (...) three different cohorts in the United States. The chapter compares these patterns with those in Japan. An understanding of social change hinges to a large extent on the interaction between individual time and social-structural time. In this interaction, the family acts as an important mediator between individuals and the larger social processes. Transitions are processes of individual change within socially constructed timetables, which members of different cohorts undergo. Turning points are perceptual road marks along the life course. (shrink)