title: Voluntary pressing and releasing actions induce different senses of time: evidence from event-related brain responses.
abstract: The timing intervals initiated by voluntary pressing actions are subjectively compressed compared with those initiated by voluntary releasing actions. Event-related potentials (ERPs) were employed in the present study to uncover the temporal mechanisms underlying this temporal illusion. The results revealed that the mean amplitude of the P1 component over the frontal-central recording sites, but not the P2 component, was larger in the voluntary pressing condition than in the voluntary releasing condition at the time perception stage. In the fronto-central region, increases in oscillatory activities of delta-theta frequency range (1-7 Hz) were found in the voluntary pressing condition, which corresponded with the emergence of the P1 peak. In addition, the P1 amplitude was negatively related to the corresponding reported time length at the single-trial level. These results are discussed in terms of the functional role of the response-locked P1 in the time perception stage.
authors.affiliation: 1] State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China [2] University of Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Behavior Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Ruolei
authors.initials: R
authors.lastname: Gu
authors.affiliation: Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Wang
authors.affiliation: Key Laboratory of Cognition and Personality of Ministry of Education, School of Psychology, Southwest University, Chongqing, 400715, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Xiao
authors.affiliation: 1] State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China [2] University of Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Yu-Hsin
authors.initials: YH
authors.lastname: Chen
authors.affiliation: 1] State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China [2] University of Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Liang
authors.affiliation: Key Laboratory of Cognition and Personality of Ministry of Education, School of Psychology, Southwest University, Chongqing, 400715, China.
authors.forename: Li
authors.initials: L
authors.lastname: Hu
authors.affiliation: State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Xiaolan
authors.initials: X
authors.lastname: Fu
mesh_terms: D000328:Adult; D058256:Brain Waves / Q000502:physiology*; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D005625:Frontal Lobe / Q000502:physiology*; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D012677:Sensation; D013998:Time Perception / Q000502:physiology*; D055815:Young Adult