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001-es BibID:	BIBFORM057764
Első szerző:	Sulykos István
Cím:	Mismatch negativity does not show evidence of memory reactivation in the visual modality / István Sulykos, Krisztina Kecskés-Kovács, István Czigler
Dátum:	2013
ISSN:	0269-8803
Megjegyzések:	The possibility of reactivation of the memory representation underlying visual mismatch negativity (vMMN) was investigated in a modified passive roving-standard paradigm. Stimuli (arrays of Ga?bor patches) were presented in sequences with blank interval between the sequences. The first member of each sequence was identical to the standard of the previous sequence, while the second stimulus had differentorientation therefore the second stimulus was considered as deviant. In a control condition the stimuli of the previous sequence had randomorientations. Event-related potentials (ERPs) in response to the deviants were compared to ERPs in response to the (physically identical) secondstimulus of the control sequences. The comparison showed emergence of a positive component at an early (98?132 ms) latency range elicited by deviants. This component is interpreted as an index of increased sensitivity to rare changes in sequences dominated by identical stimuli rather than a component specific to violation of sequential regularity. Consequently, contrary to the findings in the auditory modality, the first stimulus of the sequence did not reactivate the memory representation underlying the vMMN, since subsequent deviant elicited no vMMN.
Tárgyszavak:	Bölcsészettudományok Pszichológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban visual mismatch negativity change positivity reactivation roving-standard paradigm
Megjelenés:	Journal Of Psychophysiology. - 27 : 1 (2013), p. 1-7. -
További szerzők:	Kecskés-Kovács Krisztina (1984-) (pszichológus) Czigler István (1946-)
Pályázati támogatás:	OTKA-71600 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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