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Titolo:
Control of voluntary and reflexive saccades
Autore:
Walker, R; Walker, DG; Husain, M; Kennard, C;
Indirizzi:
Univ London, Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, England Univ London Egham Surrey England TW20 0EX Egham TW20 0EX, Surrey, England Univ London Imperial Coll Sci Technol & Med, Sch Med, Dept Sensorimotor Syst, Div Neurosci & Psychol Med, London W6 8RF, England Univ London ImperialColl Sci Technol & Med London England W6 8RF ngland
Titolo Testata:
EXPERIMENTAL BRAIN RESEARCH
fascicolo: 4, volume: 130, anno: 2000,
pagine: 540 - 544
SICI:
0014-4819(200002)130:4<540:COVARS>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
MONKEY SUPERIOR COLLICULUS; VISUALLY GUIDED SACCADES; WARNING SIGNALS; FIXATION POINT; STIMULUS ONSET; LATENCY; OFFSET; LESIONS; ANTISACCADES; INHIBITION;
Keywords:
saccade; anti-saccade; voluntary; endogenous; exogenous;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Walker, R Univ London, Royal Holloway & Bedford New Coll, Dept Psychol, Egham TW20 0EX, Surrey, England Univ London Egham Surrey England TW20 0EX 0EX, Surrey, England
Citazione:
R. Walker et al., "Control of voluntary and reflexive saccades", EXP BRAIN R, 130(4), 2000, pp. 540-544

Abstract

The latency of 'reflexive' saccades (made in response to peripheral visualstimuli) was compared to that of 'voluntary' saccades performed in anti-saccade and symbolically cued paradigms. Manipulation of visual events at fixation was carefully controlled across all conditions. Reflexive saccade latency was significantly faster than the latency of all forms of voluntary saccades. Importantly, the latency of saccades made after presentation of a symbolic cue at central fixation (voluntary arrow-cue condition) was greaterthan that made in the anti-saccade paradigm that requires suppression of areflexive response. It is suggested that the increase in latency of saccades made in the voluntary arrow-cut condition may reflect differences in programming a 'When' trigger signal for saccades made in the absence of a peripheral stimulus.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/08/20 alle ore 19:52:20