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Titolo:
Mismatch negativity is unaffected by top-down predictive information
Autore:
Rinne, T; Antila, S; Winkler, I;
Indirizzi:
Univ Helsinki, Dept Psychol, Cognit Brain Res Unit, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 it, FIN-00014 Helsinki, Finland Hungarian Acad Sci, Inst Psychol, Budapest, Hungary Hungarian Acad Sci Budapest Hungary ci, Inst Psychol, Budapest, Hungary
Titolo Testata:
NEUROREPORT
fascicolo: 10, volume: 12, anno: 2001,
pagine: 2209 - 2213
SICI:
0959-4965(20010720)12:10<2209:MNIUBT>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
COGNITIVE NEUROSCIENCE; ATTENTIONAL MODULATION; SELECTIVE-ATTENTION; FREQUENCY; FEATURES; MEMORY; BRAIN;
Keywords:
auditory event-related potentials; auditory sensory memory; mismatch negativity (MMN); predictability; top-down control;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Rinne, T Univ Helsinki, Dept Psychol, Cognit Brain Res Unit, POB 13, FIN-00014 Helsinki, Finland Univ Helsinki POB 13 Helsinki Finland FIN-00014 elsinki, Finland
Citazione:
T. Rinne et al., "Mismatch negativity is unaffected by top-down predictive information", NEUROREPORT, 12(10), 2001, pp. 2209-2213

Abstract

The mismatch negativity (MMN) event-related brain potential is assumed to reflect a stimulus-driven change detection process. We examined whether MMNis sensitive to volitional control by testing whether MMN is affected by the subject's foreknowledge of the sound changes. Subjects were instructed to produce a sequence of button presses by pressing one button frequently and another infrequently. In the predictable condition, the frequently pressed button triggered the standard tone. the other button the deviant tone. Inthe unpredictable condition, each button press triggered the next tone of a prearranged standard/deviant sequence. No difference was found in the MMNamplitude. latency, or scalp distribution between the predictable and unpredictable conditions. This suggests that there is no direct top-down control over the MMN-generating process. NeuroReport 12:2209-2213 (C) 2001 Lippincott Williams & Wilkins.

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Documento generato il 05/07/20 alle ore 21:36:25