title: Emotional influences on time perception: evidence from event-related potentials.
abstract: This study examined the influence of emotion on time perception and its neural correlates by measuring event-related potentials. Participants were asked to discriminate a previously memorized 700 ms 'standard' duration from 490, 700 and 910 ms, which were presented by emotional and neutral faces. The results showed decreased contingent negative variation potentials, which index timing, for emotional conditions versus the neutral condition. In addition, under the emotional conditions, the P160 and P240 amplitudes were enhanced and the N230 amplitude was decreased. These findings suggest that temporal processing can be modulated by emotion, even within 200 ms of the stimulus onset, and that the attentional bias for emotion attenuates the cognitive resources for time perception.
authors.affiliation: Key Laboratory of Cognition and Personality, Southwest University, Ministry of Education, Chongqing, China.
authors.forename: Tian
authors.initials: T
authors.lastname: Gan
authors.forename: Naiyi
authors.initials: N
authors.lastname: Wang
authors.forename: Zhijie
authors.initials: Z
authors.lastname: Zhang
authors.forename: Hong
authors.initials: H
authors.lastname: Li
authors.forename: Yue-jia
authors.initials: YJ
authors.lastname: Luo
mesh_terms: D000293:Adolescent; D001143:Arousal / Q000502:physiology; D001288:Attention / Q000502:physiology; D015982:Bias; D002540:Cerebral Cortex / Q000502:physiology*; D003071:Cognition / Q000502:physiology; D004569:Electroencephalography; D004644:Emotions / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D005149:Facial Expression; D005260:Female; D006801:Humans; D008297:Male; D009433:Neural Inhibition / Q000502:physiology; D009483:Neuropsychological Tests; D010775:Photic Stimulation; D011930:Reaction Time / Q000502:physiology; D013997:Time Factors; D013998:Time Perception / Q000502:physiology*; D055815:Young Adult