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Time perception

About: Time perception is a research topic. Over the lifetime, 1918 publications have been published within this topic receiving 87020 citations.


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Journal ArticleDOI
TL;DR: Support for a left hemispheric advantage for temporal processing is provided, which provides further explanation of temporal processing mechanisms and where deficits may occur in clinical populations.
Abstract: Beta brain wave frequencies, theta brain wave frequencies, and interhemispheric transfer rates were investigated in individuals to explore components of time perception. Research suggests that the left hemisphere is highly involved in attention and language, which are important components of temporal processing mechanisms. Resting state electroencephalography was used to evaluate the relationship between right and left hemispheric brain wave frequencies and performance on a duration-discrimination task and an interhemispheric transfer rate task. A stepwise multiple regression was used to investigate the absolute spectral power of right minus left hemispheric activation for each frequency (alpha, beta, gamma, theta) at each of eight paired electrode locations onto d' data for a temporal discrimination task. Higher absolute spectral power in parietal and temporal left electrodes was predictive of better performance on the duration-discrimination task. Right-to-left interhemispheric transfer approached a significant correlation with performance on the duration-discrimination task. Our results indicate that sensitivity on a temporal task is positively correlated with beta and theta brain wave frequencies, and negatively correlated with right-to-left interhemispheric transfer rates. The current study provides support for a left hemispheric advantage for temporal processing; this provides further explanation of temporal processing mechanisms and where deficits may occur in clinical populations.

5 citations

Journal ArticleDOI
TL;DR: Coull and Giersch as discussed by the authors show that the functional distinction between temporal order processing and duration estimation is reflected in their discrete neural substrates, and that temporal order processes preferentially engage the left inferior parietal cortex, whereas duration estimation recruits the supplementary motor area, basal ganglia and cerebellum.
Abstract: The term ‘timing’ is interchangeably used to convey processing of the order or the duration of events. Yet, whereas temporal order processing means judging when one event happens relative to another (first or second), duration estimation means measuring how long the event lasts. In this Review, we show that the functional distinction between these two temporal features is reflected in their discrete neural substrates. Temporal order processing preferentially engages the left inferior parietal cortex, whereas duration estimation recruits the supplementary motor area, basal ganglia and cerebellum. The functional distinction between temporal order processing and duration estimation also enables better characterization of temporal perturbations present in clinical disorders. For instance, individuals with schizophrenia have trouble individuating and ordering consecutive events in time and show atypical responses to stimuli that do not appear when expected. Therefore, individuals with schizophrenia might have a fundamental impairment in processing when a stimulus occurs relative to another event, rather than in estimating how long it lasts. These neural and clinical dissociations demonstrate that the phenomenological sensation of a unitary and cohesive flow of time (‘time’s arrow’) can be separated into two distinct, though intertwined, components. Subjective time perception involves processing when an event happens relative to another event versus how long an event lasts. In this Review, Coull and Giersch describe the functional and neural differences between temporal order processing and duration estimation by exploring perturbations in individuals with schizophrenia.

5 citations

Posted ContentDOI
14 Jul 2020-bioRxiv
TL;DR: How the perceived duration of a novel stimulus is influenced by 1) a simultaneous saccade, in combination with 2) a prior series of repeated stimuli in human participants yielded a novel behavioral interaction: pre-saccadic stimulus repetition neutralizes perisaccadic time compression.
Abstract: Various models (e.g. scalar, state-dependent network, and vector models) have been proposed to explain the global aspects of time perception, but they have not been tested against specific visual phenomena like perisaccadic time compression and novel stimulus time dilation. Here, we tested how the perceived duration of a novel stimulus is influenced by 1) a simultaneous saccade, in combination with 2) a prior series of repeated stimuli in human participants. This yielded a novel behavioral interaction: pre-saccadic stimulus repetition neutralizes perisaccadic time compression. We then tested these results against simulations of the above models. Our data yielded low correlations against scalar model simulations, high but non-specific correlations for our feedforward neural network, and correlations that were both high and specific for a vector model based on identity of objective and subjective time. These results demonstrate the power of global time perception models in explaining disparate empirical phenomena and suggest that subjective time has a similar essence to time9s physical vector.

5 citations

Journal ArticleDOI
TL;DR: Automatic suppression, but not deliberate suppression, is effective for reducing the effect of anxiety on time perception.
Abstract: Anxiety has been found to lengthen time perception, especially the time perception of negative stimuli. This anxiety-related time overestimation is thought to be mainly associated with massively increased arousal. Suppression, which can be achieved either deliberately or automatically, has been demonstrated to be effective in reducing arousal. Consequently, the present study explored the effectiveness of both deliberate suppression (Experiment 1) and automatic suppression (Experiment 2) in reducing the time distortion in anxiety. A temporal bisection task (TBT), featuring negative and neutral pictures, was used to measure time perception, while the self-reported arousal was used to assess arousal. The deliberate suppression was manipulated by asking participants to suppress their emotional expressions; while automatic suppression was manipulated through a sentence-unscrambling task featuring suppression-related words, which can unconsciously prime suppression. The results of Experiment 1 showed that deliberate suppression did not reduce the anxiety-related time overestimation and arousal. However, Experiment 2 showed that automatic suppression significantly reduced the anxiety-related time overestimation, with significant arousal reduction being observed. In conclusion, automatic suppression, but not deliberate suppression, is effective for reducing the effect of anxiety on time perception.

5 citations

Journal ArticleDOI
TL;DR: It is found that, for all time intervals tested in this experiment, the visual system consistently perceived AP stimuli as being shorter than the periodic (P) ones, and perceptual time compression occurs for AP visual stimuli.
Abstract: The ability to estimate time intervals subserves many of our behaviors and perceptual experiences. However, it is not clear how aperiodic stimuli affect our perception of time intervals across sensory modalities. To address this question, we evaluated the human capacity to discriminate between two acoustic, visual or audiovisual time intervals of trains of scattered pulses. We first measured the periodicity of those stimuli and then sought for correlations with the accuracy and reaction times of the subjects. We found that, for all time intervals tested in our experiment, the visual system consistently perceived aperiodic stimuli as being shorter than the periodic ones. In contrast, such a compression phenomenon was not apparent during auditory trials. Our conclusions are: first, the subjects exposed to periodic stimuli are more likely to measure their durations accurately. Second, perceptual time compression occurs for aperiodic visual stimuli. Lastly, audiovisual discriminations are determined by acoustic dominance rather than by audiovisual enhancement.

5 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202395
2022178
202177
202083
2019101
201896