Perception of temporal duration affected by automatic and controlled movements (original) (raw)
Related papers
How voluntary actions modulate time perception
Experimental Brain Research, 2009
Distortions of time perception are generally explained either by variations in the rate of pacing signals of an "internal clock", or by lag-adaptation mechanisms that recalibrate the perceived time of one event relative to another. This study compares these accounts directly for one temporal illusion: the subjective compression of the interval between voluntary actions and their eVects, known as 'intentional binding'. Participants discriminated whether two cutaneous stimuli presented after voluntary or passive movements were simultaneous or successive. In other trials, they judged the temporal interval between their movement and an ensuing tone. Temporal discrimination was impaired following voluntary movements compared to passive movements early in the action-tone interval. In a control experiment, active movements without subsequent tones produced no impairment in temporal discrimination. These results suggest that voluntary actions transiently slow down an internal clock during the action-eVect interval. This in turn leads to intentional binding, and links the eVects of voluntary actions to the self.
Scientific Reports
Visual perception is based on periods of stable fixation separated by saccadic eye movements. Although naive perception seems stable (in space) and continuous (in time), laboratory studies have demonstrated that events presented around the time of saccades are misperceived spatially and temporally. Saccadic chronostasis, the “stopped clock illusion”, represents one such temporal distortion in which the movement of the clock hand after the saccade is perceived as lasting longer than usual. Multiple explanations for chronostasis have been proposed including action-backdating, temporal binding of the action towards the moment of its effect (“intentional binding”) and post-saccadic temporal dilation. The current study aimed to resolve this debate by using different types of action (keypress vs saccade) and varying the intentionality of the action. We measured both perceived onset of the motor action and perceived onset of an auditory tone presented at different delays after the keypress...
Moving time: The influence of action on duration perception.
Journal of Experimental Psychology: General.
Perceiving the sensory consequences of action accurately is essential for appropriate interaction with our physical and social environments. Prediction mechanisms are considered necessary for fine-tuned sensory control of action, yet paradoxically may distort perception. Here we examine this paradox by addressing how movement influences the perceived duration of sensory outcomes congruent with action. Experiment 1 required participants to make judgments about the duration of vibrations applied to a moving or stationary finger. In Experiments 2 and 3, participants judged observed finger movements, congruent or incongruent with their own actions. In all experiments, target events were perceived as longer when congruent with movement. Interestingly, this temporal dilation did not differ as a function of stimulus perspective (first or third person) or spatial location, and could not be attributed to attentional orienting. We propose that this bias may reflect the operation of an adaptive mechanism for sensorimotor selection and control that pre-activates anticipated outcomes of action. The bias itself may have surprising implications both for action control and perception of others - we may be in contact with grasped objects for less time than we realize and others’ reactions to us may be briefer than we believe.
Perceiving the sensory consequences of action accurately is essential for appropriate 25 interaction with our physical and social environments. Prediction mechanisms are 26 considered necessary for fine-tuned sensory control of action, yet paradoxically may 27 distort perception. Here we examine this paradox by addressing how movement 28 influences the perceived duration of sensory outcomes congruent with action.
Time on your hands: Perceived duration of sensory events is biased toward concurrent actions
Journal of Experimental Psychology: General, 2017
Perceptual systems must rapidly generate accurate representations of the world from sensory inputs that are corrupted by internal and external noise. We can typically obtain more veridical representations by integrating information from multiple channels, but this integration can lead to biases when inputs are, in fact, not from the same source. While a considerable amount is known about how different sources of information are combined to influence what we perceive, it is not known whether temporal features are combined. It is vital to address this question given the divergent predictions made by different models of cue combination and time perception concerning the plausibility of crossmodal temporal integration, and the implications that such integration would have for research programmes in action control and social cognition. Here we present four experiments investigating the influence of movement duration on the perceived duration of an auditory tone. Participants either explicitly (Experiments 1-2) or implicitly (Experiments 3-4) produced hand movements of shorter or longer durations, while judging the duration of a concurrently presented tone (500-950 ms in duration). Across all experiments, judgments of tone duration were attracted towards the duration of executed movements (i.e., tones were perceived to be longer when executing a movement of longer duration). Our results demonstrate that temporal information associated with movement biases perceived auditory duration, placing important constraints on theories modelling cue integration for state estimation, as well as models of time perception, action control and social cognition.
Biases in the perceived timing of perisaccadic perceptual and motor events
Perception & Psychophysics, 2006
Perceived Duration Is an Indirect Measure of Perceived Event Timing Previous studies of saccadic chronostasis have used interval judgments such as those employed to investigate how humans assess the duration of perceptual epochs (Allan, 1979, 1998). However, an interval is bounded by the events marking its onset and offset (see Figure 1). Few
Apparent Time Interval of Visual Stimuli Is Compressed during Fast Hand Movement
PloS one, 2015
The influence of body movements on visual time perception is receiving increased attention. Past studies showed apparent expansion of visual time before and after the execution of hand movements and apparent compression of visual time during the execution of eye movements. Here we examined whether the estimation of sub-second time intervals between visual events is expanded, compressed, or unaffected during the execution of hand movements. The results show that hand movements, at least the fast ones, reduced the apparent time interval between visual events. A control experiment indicated that the apparent time compression was not produced by the participants' involuntary eye movements during the hand movements. These results, together with earlier findings, suggest hand movement can change apparent visual time either in a compressive way or in an expansive way, depending on the relative timing between the hand movement and visual stimulus.
Mechanisms of Sensory Perception of Time Durations
One of important challenges for neuroscience is to understand how brain measures the temporal intervals. There has been a steady growth of literature over past several years to understand different timing mechanisms. Recent experimental evidence argues against the single clock model for temporal representation of outside world . Instead, evidence has been gathering that support involvement of multiple areas in brain for temporal processing in brain . Parts of brain, involved in perception of time intervals, range from sensory to motor areas of brain, which include parietal lobe, frontal lobe, cerebellum and basal ganglia . Moreover, multiple mechanisms could be responsible for computing time, which was revealed by a study that found significant differences in brain areas that are active in tasks requiring temporal discrimination of 0.6 sec versus 3 sec [6]. Greater activity was observed in bilateral insula and dorsolateral prefrontal cortex, and in right hemispheric presupplementary motor area, frontal pole, and inferior parietal cortex during measurement of both intervals, suggesting that these regions constitute a system used in temporal discrimination at both ranges . Left cerebellar hemisphere showed significantly greater activity during measurement of the shorter interval, supporting the hypotheses that the motor system is preferentially involved in the measurement of sub-second intervals . However few voxels in the left posterior cingulate and posterior parietal lobe were more active in 3 sec tasks in the same study , supporting the role of a different network in timing of 3 sec tasks.
Rhythmic motor behaviour influences perception of visual time
Proceedings of the Royal Society B: Biological Sciences
Temporal processing is fundamental for an accurate synchronization between motor behaviour and sensory processing. Here, we investigate how motor timing during rhythmic tapping influences perception of visual time. Participants listen to a sequence of four auditory tones played at 1 Hz and continue the sequence (without auditory stimulation) by tapping four times with their finger. During finger tapping, they are presented with an empty visual interval and are asked to judge its length compared to a previously internalized interval of 150 ms. The visual temporal estimates show non-monotonic changes locked to the finger tapping: perceived time is maximally expanded at halftime between the two consecutive finger taps, and maximally compressed near tap onsets. Importantly, the temporal dynamics of the perceptual time distortion scales linearly with the timing of the motor tapping, with maximal expansion always being anchored to the centre of the inter-tap interval. These results reveal...