Dynamic process of auditory temporal context modulating visual temporal processing

Data DescriptionBackground and ObjectivesThis study investigates the central tendency effect in cross-modal time perception and its underlying neural mechanisms. Specifically, we examined how visual temporal context modulates auditory duration judgments and used EEG to reveal the neural basis of supramodal temporal representation.ParticipantsTwenty university students participated in the formal experiment (11 females), with a mean age of 20.70 ± 1.63 years. All participants were right-handed, had normal or corrected-to-normal vision, normal hearing, and no history of brain injury or neurological disorders. The study was approved by the ethics committee, and all participants provided informed consent.Experimental TaskA cross-modal (visual-to-auditory) duration discrimination task was employed. Participants first viewed a 1.1-second visual standard duration (white circle), then heard an auditory comparison duration (440 Hz pure tone) of varying lengths, and judged which was longer. The experiment included two temporal context conditions (short and long), with a total of 640 trials.Data Collection MethodsBehavioral data: Recorded using E-Prime 2.0, including key responsesEEG data: Recorded using NeuroScan system with 64 Ag/AgCl electrodes, sampling rate of 500 Hz, bandpass filtered at 0.05–100 HzData ContentsThis dataset includes:Experimental program (E-Prime source files)Behavioral data (key responses and reaction times)Raw EEG data (.cnt format)