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RESEARCH PRODUCT
Hippocampal event-related potentials to pitch deviances in an auditory oddball situation in the cat: experiment I.
Tapani KorhonenJuha ArikoskiMarkku PenttonenKirsi KivirikkoTimo Ruusuvirtasubject
musculoskeletal neural and ocular physiologyGeneral NeuroscienceAuditory oddballHippocampusMismatch negativityNegativity effectHippocampal formationbehavioral disciplines and activitiesHippocampusElectrodes ImplantedOrienting responseElectrophysiologyNeuropsychology and Physiological PsychologyAcoustic StimulationEvent-related potentialPhysiology (medical)OrientationDentate GyrusCatsEvoked Potentials AuditoryAnimalsPsychologyNeurosciencepsychological phenomena and processesdescription
Hippocampal event-related potentials (ERP) in the areas CA1, CA3, and dentate fascia (Df) were recorded in cats during an oddball situation when pitch deviant tones occurred in a series of standard tones. When difference waves were calculated by subtracting ERPs to the standard tones from those to the deviant tones, no clear N40d, corresponding to a cat analogue of the human mismatch negativity (MMN) observed in earlier studies, could be detected. Instead, a prominent later negativity (N130d) was observed. A possible extra-hippocampal source of the process reflected by the MMN-like negativity, and a relation between an orienting response (OR) and the N130d are discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-06-01 | International journal of psychophysiology : official journal of the International Organization of Psychophysiology |