6533b826fe1ef96bd128526d

RESEARCH PRODUCT

Rhythmic variations in reaction times and evoked potentials

Francesca D'olimpioStella ConteFabio Ferlazzo

subject

Activity CyclesAdultmedicine.medical_specialtymedia_common.quotation_subjectAudiologyStimulus (physiology)RhythmmedicineReaction TimeHumansmedia_commonUltradian rhythmChronobiologyCommunicationbusiness.industryGeneral NeuroscienceElectroencephalographyGeneral MedicineElectrooculographyAmplitudeEvoked Potentials AuditorySingle trialbusinessPsychologyArousalVigilance (psychology)

description

The present work aimed to assess the existence of a regular ultradian cyclicity underlying the variations in amplitude of the N1-P2 component of acoustic EP during a relatively long recording session and investigate its relationship with behavioral measure as RT to the same stimulus. 128 tones were presented to each subject; 128 RTs and the associated EPs to target stimuli were recorded. N1-P2 amplitude has been measured at a single trial level through Woody adaptive filter modified by Wastell. Results showed that there are ultradian rhythmic variations of N1-P2 and RT, with a periodicity from about 5 to 40 min and these variations have similar patterns in the two measures in most of the subjects.

http://hdl.handle.net/11591/234161