6533b825fe1ef96bd1282811

RESEARCH PRODUCT

Behavioral and event-related potential distraction effects with regularly occurring auditory deviants

Stefan BertiSylvia Jankowiak

subject

AdultMalemedicine.medical_specialtygenetic structuresCognitive NeuroscienceeducationMismatch negativityExperimental and Cognitive PsychologyStimulationAudiologyElectroencephalographybehavioral disciplines and activitiesLoudnessP3aDevelopmental NeuroscienceEvent-related potentialDistractionmental disordersReaction TimemedicineHumansAuditory systemBiological PsychiatryBehaviormedicine.diagnostic_testEndocrine and Autonomic SystemsGeneral NeuroscienceElectroencephalographyNeuropsychology and Physiological Psychologymedicine.anatomical_structureAcoustic StimulationNeurologyEvoked Potentials AuditoryPsychologySocial psychologypsychological phenomena and processes

description

When auditory stimulation contains infrequent task-irrelevant changes (deviants), behavioral responses to task-relevant aspects of the stimulation are prolonged. Event-related brain potentials (ERPs) show that deviants elicit mismatch negativity (MMN), P3a, and reorienting negativity (RON). Here, we examine whether distraction effects can also be elicited within fixed auditory sequences with deviant probabilities of 0.25, 0.33, and 0.5. Deviants varied either in pitch, loudness, or sound source location. In all conditions MMN and P3a were elicited, suggesting that an automatic detection of and an attentional allocation to the change occurred. With relative frequencies of 25% and 33%, deviants also yielded a RT prolongation and a RON, suggesting reorientation to the relevant task. Our study demonstrates the ability to detect frequent and predictable changes automatically and shows behavioral effects in two conditions.

yearjournalcountryeditionlanguage
2007-01-24Psychophysiology
https://doi.org/10.1111/j.1469-8986.2006.00479.x