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Titolo:
EFFECTS OF STIMULUS ALTERNATION, REPETITION AND RESPONSE REQUIREMENTSON EVENT-RELATED POTENTIALS TO PATTERNED VISUAL-STIMULI
Autore:
CSIBRA G; CZIGLER I; AMBRO A;
Indirizzi:
HUNGARIAN ACAD SCI,INST PSYCHOL BUDAPEST HUNGARY HUNGARIAN ACAD SCI,INST PSYCHOL BUDAPEST HUNGARY
Titolo Testata:
Biological psychology
fascicolo: 2, volume: 37, anno: 1994,
pagine: 115 - 132
SICI:
0301-0511(1994)37:2<115:EOSARA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
INDEX FOCUSED ATTENTION; SELECTIVE ATTENTION; EVOKED-POTENTIALS; DISCRIMINATION TASKS; AUDITORY-STIMULI; COMPONENTS; LOCATION; ARRAYS; COLOR; SIZE;
Keywords:
EVENT-RELATED POTENTIAL; PERCEPTION; GO-NOGO UNCERTAINTY; N1; N2;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
G. Csibra et al., "EFFECTS OF STIMULUS ALTERNATION, REPETITION AND RESPONSE REQUIREMENTSON EVENT-RELATED POTENTIALS TO PATTERNED VISUAL-STIMULI", Biological psychology, 37(2), 1994, pp. 115-132

Abstract

Event-related potentials (ERPs) were recorded to square-pattern stimuli presented either to the upper or the lower half of the visual field. in the Same task the subjects had to respond to the fifth stimulus of a microsequence of stimuli that appeared on the same half field, whereas in the Different task the target stimulus was the alternation of stimulus location after a microsequence of four stimuli to the same half field. The pattern-specific CII component (a negative wave to lowerhalf-field stimulation with 100 ms latency) appeared to be insensitive to task variables. N1 increased to the uncertain alternations of stimulus location. An N2 component with temporal maximum emerged to Nogo stimuli (to the fifth stimulus in the same location in the Different task and the alternation after four identical stimuli in the Same task). An anterior N2 was characteristic to the Nogo stimuli of the Different task. P3 latency was longer, and it had more anterior distribution to the Nogo stimuli.

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Documento generato il 22/09/20 alle ore 12:25:01