Differences In Time Perception Research Articles

Differences in time perception in patients with obstructive sleep apnea.

Obstructive sleep apnea (OSA) is a condition that occurs due to complete (apnea) and partial (hypopnea) obstruction in the upper airways during sleep. Hypoxia is one of the key factors contributing to the development of symptoms of obstructive sleep apnea and OSA-related diseases. The present study aimed to evaluate time perception differences between patients with OSA and healthy individuals, as well as among different OSA severity groups. Twenty severe OSA, twenty moderate OSA, twenty mild OSA patients, and twenty healthy volunteers without OSA were included in the study. Scales were administered to the participants. Time perception tests were administered to evaluate perceptual timing. In the paced motor timing test, a difference was observed between the OSA ( +) group and the OSA (-) group. In the Time Estimation Test, a difference was observed between the OSA ( +) group and the OSA (-) group and their subgroups. The internal clock works slower in the OSA ( +) group. When subgroups were compared based on the degree of OSA, the internal clock worked slower as we transitioned from the OSA (-) group to the severe OSA group. It is considered that as you move from the OSA (-) group to the severe OSA group, the switch between pacemaker and accumulator is disrupted due to the decrease in attention. Recurrent hypoxia observed in OSA may alter the perception of time by affecting attention.

The Differences in Time Perception between China and Japan: An Analysis based on Hofstede's Cultural Dimensions Theory

In response to President Xi Jinping's "Belt and Road" initiative, it is crucial to enhance relationships with neighboring trade partners, especially Japan, to further promote the healthy development of the global economy and build a community with a shared future for mankind. Despite the profound impact of World War II on Sino-Japanese relations, the trade ties between China and Japan have become increasingly close since the reform and opening up, demonstrating the potential and necessity for cooperation between the two countries. Therefore, this paper will utilize the Uncertainty Avoidance Dimension from Hofstede's Cultural Dimensions Theory to analyze the cultural differences in time management between China and Japan. Through this analysis, the paper aims to explore how to optimize communication between Chinese and Japanese enterprises, improve work efficiency, and eliminate cultural misunderstandings, thereby fostering the deepening of Sino-Japanese relations.

How time flies: Time perception and intertemporal choice

This paper identifies a potential gap between time preference and intertemporal choices such as time discounting tasks: The intertemporal choices could be partly driven by a biased perception of time and thus may not completely reveal actual time preference. To test this, we explore the causal relationship between time perception and intertemporal choices by conducting a laboratory experiment in which cognitive load is used as a stimulating instrument to induce differences in time perception. We establish that the perceived time lengths for subjects with high cognitive load are shorter than those with low cognitive load and that individuals who underestimate time appear more patient in their intertemporal choices. Mediation analyses show that time perception mediates a significant portion of cognitive load’s effect on intertemporal choices. Our study thus demonstrates that time preference identified by intertemporal choices might be confounded by potentially biased time perception, calling for improving suboptimal time-related economic decisions due to an individual’s misperception of how time flies.

Genre v. BPM in Time Perception

This paper investigates the impact of music on time perception by examining two factors: genre and beats per minute (BPM) of songs. The study explores whether there is a significant difference in time perception when individuals listen to classical music compared to pop music and how varying song speeds affect time perception. Participants from Conestoga High School were selected through a convenience sample during Unity Fair and were asked to estimate when 15 seconds had elapsed while listening to different songs. The results indicated that there was no significant difference in time perception between classical and pop music. However, there was a significant difference in time perception for songs with different BPMs. The study suggests that song speed plays a more substantial role in affecting time perception than genre. Further exploration of music's impact on cognitive functions and time perception in longer intervals is proposed for future research.

Time perception reflects individual differences in motor and non-motor symptoms of Parkinson's disease

Decreasing dopaminergic function is at the core of Parkinson's disease (PD) motor symptoms and changes in dopaminergic action are associated with many comorbid non-motor symptoms in PD. Notably, dopaminergic signaling in the striatum has been shown to play a critical role in the perception of time. We hypothesize that patients with PD perceive time differently and in accordance with their specific comorbid non-motor symptoms and clinical state. This means that individual differences in clinical symptoms may be reflected in individual differences in timing behavior. To test this hypothesis, we recruited patients with PD and compared individual differences in patients' clinical state with their ability to judge intervals of time ranging from 500 ms to 1100 ms while on and off their prescribed dopaminergic medications. We show that medication state (on vs. off medications) did not affect timing behavior, but individual differences in timing behavior are able to predict individual differences in comorbid non-motor symptoms, duration of PD diagnosis, and prescribed dopaminergic medications. We show that comorbid impulse control disorder is associated with temporal overestimation; depression is associated with decreased temporal accuracy; and increased PD duration and prescribed levodopa monotherapy are associated with reduced temporal precision and accuracy. Observed differences in time perception are consistent with hypothesized dopaminergic mechanisms thought to underlie the respective motor and non-motor symptoms in PD. In future work, time perception tasks may augment clinical diagnosis strategies, or help disentangle the neural and cognitive mechanisms underlying PD motor and non-motor symptom etiology.

Studying subjective perception of time by Vietnamese and Russian students

Introduction. The perception of time at student age is an important component for successful adaptation to other conditions of education, for socialising in a new social circle and for acquiring knowledge necessary for further professional development. Learning conditions in the modern world are generally similar; however, students from different countries are bearers of differing cultures. The aim is to compare the characteristics of subjective perception of time in terms of its past, present and future by Vietnamese and Russian students. Materials and methods. The sample encompassed a number of university students from Vietnam and Russia. The total number of respondents was 199 (105 Vietnamese students and 94 Russian students). To achieve the set goal, the psychosemantic method and the “Semantic time differential” method were applied. The statistical data processing methods involved the arithmetic mean and Mann-Whitney U-test. Results. The research results revealed certain differences in subjective perception of time between the students from Vietnam and Russia at the level of statistical trend (p≥0.05) – as concerns future perception peculiarities and time structure perception. Conclusion. The subjective perception of time by Vietnamese and Russian students is influenced by the society and culture: the Vietnamese society is less exposed to Western ideas of time management, therefore their perception of time structure is less meaningful; at the same time, the future and the past are deemed to be equally important due to the ancestor cult and placing importance on connection with the departed. The power and vividness of manifestation of different time aspects is also culturally conditioned since it is not customary in Southeast Asia to express one’s emotional manifestations vehemently.

View of Times and Temporal Focus under the Pace of Life on the Impact of Intertemporal Decision Making.

Previous studies have explored the effects of time poverty and money worship on intertemporal decision making based on a resource scarcity perspective. However, how the pace of life affects intertemporal decision making has not been examined. Furthermore, manipulating time perceptions can influence intertemporal decision-making preferences. Based on the perspective of time perception differences, it remains unknown how views of time or temporal focus affect the intertemporal decision making of individuals with different pace of life. To address these issues, study 1 adopted a correlational study to initially explore the relationship between the pace of life and intertemporal decision making. Studies 2 and 3 used manipulation experiments to examine the effects of the pace of life and view of time and temporal focus and pace of life on intertemporal decision making. The results suggest that the faster the life pace, the more recent rewards are preferred. Views of time and temporal focus manipulations can influence the intertemporal decision making of faster-paced individuals, making them prefer smaller-sooner (SS) payoffs under a linear view of time or future temporal focus and larger-later (LL) payoffs under a circular view of time or past temporal focus. However, the manipulation does not affect the intertemporal decision of slower-paced individuals. Our study examined the effect of the pace of life on intertemporal decision making based on a resource scarcity perspective, and found boundary conditions for the influence of the view of time and temporal focus on intertemporal decision making based on the perspective of differences in people's perception of time.

Time Perception and Memory in Mild Cognitive Impairment and Alzheimer's Disease: A Preliminary Study.

Episodic memory is a system that receives and stores information about temporally dated episodes and their interrelations. Our study aimed to investigate the relevance of episodic memory to time perception, with a specific focus on simultaneity/order judgment. Experiment 1 employed the simultaneity judgment task to discern differences in time perception between patients with mild cognitive impairment or dementia, and age-matched normals. A mathematical analysis capable of estimating subjects' time processing was utilized to identify the sensory and decisional components of temporal order and simultaneity judgment. Experiment 2 examined how differences in temporal perception relate to performance in temporal order memory, in which time delays play a critical role. The temporal decision windows for both temporal order and simultaneity judgments exhibited marginal differences between patients with episodic memory impairment, and their healthy counterparts (p = 0.15, t(22) = 1.34). These temporal decision windows may be linked to the temporal separation of events in episodic memory (Pearson's ρ = -0.53, p = 0.05). Based on our findings, the frequency of visual events accumulated and encoded in the working memory system in the patients' and normal group appears to be approximately (5.7 and 11.2) Hz, respectively. According to the internal clock model, a lower frequency of event pulses tends to result in underestimation of event duration, which phenomenon might be linked to the observed time distortions in patients with dementia.

Parkinson's disease deficits in time perception to auditory as well as visual stimuli - A large online study.

Cognitive deficits are common in Parkinson's disease (PD) and range from mild cognitive impairment to dementia, often dramatically reducing quality of life. Physiological models have shown that attention and memory are predicated on the brain's ability to process time. Perception has been shown to be increased or decreased by activation or deactivation of dopaminergic neurons respectively. Here we investigate differences in time perception between patients with PD and healthy controls. We have measured differences in sub-second- and second-time intervals. Sensitivity and error in perception as well as the response times are calculated. Additionally, we investigated intra-individual response variability and the effect of participant devices on both reaction time and sensitivity. Patients with PD have impaired sensitivity in discriminating between durations of both visual and auditory stimuli compared to healthy controls. Though initially designed as an in-person study, because of the pandemic the experiment was adapted into an online study. This adaptation provided a unique opportunity to enroll a larger number of international participants and use this study to evaluate the feasibility of future virtual studies focused on cognitive impairment. To our knowledge this is the only time perception study, focusing on PD, which measures the differences in perception using both auditory and visual stimuli. The cohort involved is the largest to date, comprising over 800 participants.

Attention-Deficit/Hyperactivity Disorder (ADHD) and Time Perception in Adults: Do Adults with Different ADHD Symptomatology Severity Perceive Time Differently? Findings from the National Czech Study.

BackgroundStudies show neurological differences between patients with attention-deficit/hyperactivity disorder (ADHD) and healthy controls. Furthermore, it is possible that poor timing is linked with impairments in neural circuitry. This study aimed to test the hypothesis that there is a difference in time perception between adults with severe ADHD symptomatology and adults with no ADHD symptomatology.Material/MethodsPreviously, we collected data from a more extensive set of participants (n=1518) concerning the prevalence of ADHD in adulthood. We recruited participants from 3 groups defined by increasing ADHD severity out of this participant pool. Each participant was presented with 2 experimental tasks (in counterbalanced order): duration estimation and duration discrimination.ResultsIn general, we did not find any specific differences in time perception related to the severity of ADHD. Regarding duration estimation, we found that the difference between the actual and estimated durations increased with the actual duration (F(1, 7028.00)=2685.38, P<0.001). Although the differences between groups were not significant, the group×duration interaction was (F[1, 7028.00]=10.86, P<0.001), with a very small effect size (ηp2<0.001, 95% CI [0.00, 0.01]).ConclusionsThe results suggest that although individuals may demonstrate increased ADHD symptomatology, they may not have objectively more significant difficulties in time perception tasks than their counterparts with mild symptomatology. Nonetheless, time perception should be further studied because, as qualitative research suggests, participants with more severe ADHD symptomatology subjectively perceive more significant differences in time management in real life.

Identifying the difference in time perception between major depressive disorder and bipolar depression through a temporal bisection task.

It is difficult to make a precise diagnosis to distinguish patients with Major Depressive Disorder (MDD) from patients with Bipolar Depressive Disorder (current depressive episode, BD). This study will explore the difference in time perception between MDD and BD using a temporal bisection task. In this temporal bisection task, 30 MDD patients, 30 BD patients, and 30 healthy controls (HC) had to categorize a signal duration, between 400 and 1600 milliseconds (ms), as either short or long. A repeated measurement analysis of variance with 3 (subject type) × 7 (time interval) was performed on the long response ratio with Bonferroni correction for multiple comparisons. Origin software was used to calculate the subjective bisection point (BP), difference limen (DL), and Weber ratio (WR). The Hamilton Depression Rating Scale for depression-17 was used to assess depressive symptoms in the patients. The data showed that the interaction effect between subject type and duration was significant (F (6,498) = 4.656, p <0.001, η2p = 0.101). At 400 ms, and the long response of the MDD group was greater than HC group (p<0.017, Bonferroni-corrected). At 1200, 1400 and 1600 ms, the long response of BD group is smaller than HC group, (p<0.017, Bonferroni-corrected). The one-way ANOVA revealed significant difference among the HC, MDD and BD groups in the BP values WR values, F(2, 81) = 3.462, p = 0.036 vs. F(2, 81) = 3.311, p = 0.042. Post-hoc tests showed that the value of BP in the MDD group was less than BD group (p = 0.027) and the value of BP in the MDD group was less than HC group (p = 0.027), while there was not significant difference of BP values between BD group and HC group. The WR values in MDD group larger than the HC group (p = 0.022). Severity of depression not divided and analyzed according to the Hamilton Depression Rating Scale score. The time perception of the MDD and BD groups was different from that of the HC group, they overestimated short time periods. Compared with the BD group, the MDD group had a smaller time bisector, and these patients felt that time passed more slowly. The time sensitivity of MDD group and BD group were less than the HC group. However, there was no statistical difference in time sensitivity between the MDD and BD groups.

The Intention to Conceal Does Not Always Affect Time Perception.

The display duration of stimuli is overestimated due to the increase in phasic arousal induced by the stimuli or high levels of background arousal. A previous study demonstrated that display duration of items (2 s) was overestimated when a participant attempted to conceal one of the items so as not to be detected in the concealed information test (CIT). As the time perception remained the same between the item to be concealed and the other items, the overestimation was thought to be due to the high level of background arousal under the conceal condition. Duration of 2 s may be too long to examine the phasic arousal effect induced by the concealed item. The present study conducted three online experiments with shorter durations, that is, each of three items was presented with duration of 1, 0.5, and 2 s in Experiments 1, 2, and 3, respectively. The participants were instructed to conceal one of the three items under the conceal condition and did not conceal any item in the innocent condition. The difference in time perception between the conceal and innocent conditions or between items under the conceal condition was observed in none of the three experiments. The result indicates that temporal overestimation does not occur when a participant is only concealing an object. Rather, temporal overestimation would occur only when the level of background arousal is amplified by the concealment.

Quantifying the contribution of individual variation in timing to delay-discounting

Delay-discounting studies in neuroscience, psychology, and economics have been mostly focused on concepts of self-control, reward evaluation, and discounting. Another important relationship to consider is the link between intertemporal choice and time perception. We presented 50 college students with timing tasks on the range of seconds to minutes and intertemporal-choice tasks on both the time-scale of seconds and of days. We hypothesized that individual differences in time perception would influence decisions about short experienced delays but not long delays. While we found some evidence that individual differences in internal clock speed account for some unexplained variance between choices across time-horizons, overall our findings suggest a nominal contribution of the altered sense of time in intertemporal choice.

The Influence of Avatar Embodiment on Time Perception - Towards VR for Time-Based Therapy

Psycho-pathological conditions, such as depression or schizophrenia, are often accompanied by a distorted perception of time. People suffering from this conditions often report that the passage of time slows down considerably and that they are “stuck in time.” Virtual Reality (VR) could potentially help to diagnose and maybe treat such mental conditions. However, the conditions in which a VR simulation could correctly diagnose a time perception deviation are still unknown. In this paper, we present an experiment investigating the difference in time experience with and without a virtual body in VR, also known as avatar. The process of substituting a person’s body with a virtual body is called avatar embodiment. Numerous studies demonstrated interesting perceptual, emotional, behavioral, and psychological effects caused by avatar embodiment. However, the relations between time perception and avatar embodiment are still unclear. Whether or not the presence or absence of an avatar is already influencing time perception is still open to question. Therefore, we conducted abetween-subjectsdesign with and without avatar embodiment as well as a real condition (avatarvs.no-avatarvs.real). A group of 105 healthy subjects had to wait for seven and a half minutes in a room without any distractors (e.g., no window, magazine, people, decoration) or time indicators (e.g., clocks, sunlight). The virtual environment replicates the real physical environment. Participants were unaware that they will be asked to estimate their waiting time duration as well as describing their experience of the passage of time at a later stage. Our main finding shows that the presence of an avatar is leading to a significantly faster perceived passage of time. It seems to be promising to integrate avatar embodiment in future VR time-based therapy applications as they potentially could modulate a user’s perception of the passage of time. We also found no significant difference in time perception between therealand the VR conditions (avatar,no-avatar), but further research is needed to better understand this outcome.

Time Perception is a Focal Symptom of Attention-Deficit/Hyperactivity Disorder in Adults.

Attention-Deficit/Hyperactivity Disorder (ADHD) is classically associated with symptoms that include inattentiveness, hyperactivity, and impulsivity together with a variety of other observable externalized symptoms. ADHD has also been associated with specific internalized cognitive symptoms, including restlessness and emotional impulsivity. This disorder has been recognized as a lifelong condition and can be recognized by a variety of unique cognitive phenomena. In addition to the frequently ignored affective symptoms exhibited by individuals diagnosed with ADHD, problems with time perception have been noted, although these are considered to be secondary issues. Temporal shifts in cognitive processing, however, may be at the very root of ADHD-related symptoms, given the importance of coordinated signal translation in the construction of behavior. In this review, we consider the evidence that suggests that differences in time perception are a central symptom in adults with ADHD. Some of these differences include the feeling of time moving faster, which causes difficulties in prospective time tasks and inaccuracies in time estimation tasks. We analyze the literature from both neurological and psychological perspectives and include an assessment of tools that can be administered via computer to measure time perception. We also suggest several computer-based methods that might be used to address problems with time perception in both children and adults. We strongly recommend the inclusion of ADHD symptoms associated with time perception in the next revision of the Diagnostic and Statistical Manual of Mental Disorders (DSM) published by the American Psychiatric Association.

Temporal Sensitivity and Latency During Teleoperation: Using Track Clearance to Understand Errors in Future Projection.

This study investigates the role of individual differences in time perception on task performance during teleoperation with latency. Long distance teleoperation induces latency, causing performance issues for the operator. Previous research demonstrated that individual differences in time perception predicted performance on a similar task, having participants navigate a radio controlled (RC) car around a track. This work extends the relationship into routes of varying course width to test whether differences in time perception predict movement over-/underestimation. Participants completed a time estimation task and a route navigation task while experiencing latency. In the time estimation task, participants estimated the duration of multiple visual stimuli (2 s or less). In the route navigation task, participants moved a virtual cube across a route. Each trial varied in the amount of latency and the amount of horizontal clearance in the track (4-10 m for a 1.2-m-long/wide cube). The results showed fairly consistent latency by time estimation and latency by clearance interaction effects on a wide set of trial-level variables, such as completion time, and action-level performance variables, such as time spent moving per move event. However, the results were not consistently in the predicted direction. Results suggest that clearance and timing affect performance across latency, at both the overall level (i.e., trial completion time) and at the action level (time spent moving). An open question remains as to how these contextual factors affect movement strategy selection.

Individual differences in sensory integration predict differences in time perception and individual levels of schizotypy.

To interact functionally with our environment, our perception must locate events in time, including discerning whether sensory events are simultaneous. The Temporal Binding Window (TBW; the time window within which two stimuli tend to be integrated into one event) has been shown to relate to individual differences in perception, including schizotypy, but the relationship with subjective estimates of duration is unclear. We compare individual TBWs with individual differences in the filled duration illusion, exploiting differences in perception between empty and filled durations (the latter typically being perceived as longer). Schizotypy has been related to both these measures and is included to explore a potential link between these tasks and enduring perceptual differences. Results suggest that individuals with a narrower TBW make longer estimates for empty durations and demonstrate less variability in both conditions. Exploratory analysis of schizotypy data suggests a relationship with the TBW but is inconclusive regarding time perception.

ADHD Symptoms in Adults and Time Perspectives - Findings From a Czech National Sample.

IntroductionAttention deficit hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders, affecting individuals in all stages of their lives and leading to a variety of negative quality of life outcomes. The disorder is associated with marked differences related to time perception and time perspectives, and this area of research is currently becoming more prominent and gaining ground in showing new aspects of ADHD that were considered secondary (i.e., time perception differences, affective differences). In this study, we looked at ADHD symptoms in adults, correlated lifestyles, and time perspectives as defined by the Zimbardo Time Perspective Inventory (ZTPI). The ZTPI is a useful standardized scale to measure one’s time perspective anchoring in the categories of past positive, past negative, present fatalistic, present hedonistic, and future oriented. This is the first study on adult ADHD and time perspectives conducted in the Czechia.MethodologyA national representative sample of Czech adults aged 18–65 was recruited by the STEM/MARK Agency. The individuals were assessed for ADHD symptoms with the Adult ADHD Self-Report Scale (ASRS v.1.1). Furthermore, a demographic and lifestyle questionnaire was administered along with the ZTPI to assess time perspectives. Statistical calculations were conducted to find correlations between ADHD symptoms as assessed by the ASRS and the various categories of the ZTPI.ResultsADHD symptoms were found to be positively correlated with the present hedonistic perspective along with the past negative perspective. Gender was a strong factor in both ADHD symptoms, with males being more likely to show symptoms and to have a present hedonistic perspective. In females, the past negative perspective was most prominent. Education and age were negatively correlated with ADHD symptomatology and the present hedonistic perspective also decreased with age unlike the past negative perspective. Other time perspectives such as future orientation was seen in individuals with lower ADHD symptoms and higher levels of educational achievement.ConclusionResearching ADHD symptoms and their connection to time perspectives can increase knowledge of both the disorder and how time perspectives tie into it. We wish to also raise awareness of the possible utility of the ZTPI scale when working with individuals with ADHD.

Age-Related Differences in Time Reproduction Reflect Attentional Control but not Stimulus Magnitude

Abstract Research on age-related differences in time perception are mixed, with the strongest results indicating that age group differences are magnified based on the cognitive complexity of the specific task design. This raises the possibility that age-related differences in time perception may reflect downstream effects of ‘non-temporal’ factors such as stimulus magnitude, selective attention, and memory requirements. The current study explored this possibility with two experiments conducted on both younger and older adults that systematically varied stimulus magnitude and attentional demands. The first experiment was a focused–attention time reproduction task in which participants reproduced the temporal duration of a white rectangle with an embedded four-digit number. The stimulus magnitude varied from small (1000–3999) to medium (4000–6999) to large (7000–9999) digits. The second experiment was a divided-attention variant of the first experiment, where the participant either reported the temporal duration or recalled the number sequence embedded in the stimulus. Analyses indicated minimal age group differences under focused-attention conditions, but under divided-attention conditions there were age-related decreases in time estimates and temporal precision. Stimulus magnitude operated as predicted by the number–time association (NTA) effect, in which larger stimulus magnitudes induce longer duration estimates. Surprisingly, the NTA effect was evident similarly for both age groups and across both experiments. Exploratory analyses found evidence for age group equivalence in the positive influence of short-term memory on time reproduction, but age-related differences in the correlative link with cognitive processing speed. We conclude that age-related differences in our time reproduction task reflects attentional control factors but not stimulus magnitude.

The Influence of Time Perception on Intertemporal Preference and Its Psychological Mechanism

Intertemporal choice refers to people’s weighing the costs and benefits at different time points, and then making choices. Because outcomes in such decisions are separated by time, the perception of time should play an important role. Based on previous studies, this paper introduces the influence of time perception differences caused by different time representations, different results and individual differences on intertemporal preference, and explains the causes by perceived-time-based model. In addition, it also introduces the influence of time frame effect, reward and punishment effect, money management guidance, emotion, attention, memory and other cognitive mechanisms on time perception to help people make more rational decisions in the field of Intertemporal choice. In the future, the research direction can be explored from other dimensions of time perception to explore the impact of intertemporal preference and its physiological mechanism.