Fixation Disengagement and Eye-movement Latency

Overview

Journal Percept Psychophys

Specialties Psychiatry
Psychology

Date 1994 Sep 1

PMID 7971125

Citations 19

Authors

W J Tam

H Ono

Affiliations

Soon will be listed here.

Abstract

We examined eye-movement latencies to a target that appeared during visual fixation of stationary stimulus, a moving stimulus, or an extrafoveal stimulus. The stimulus at fixation was turned off either before target onset (gap condition) or after target onset (overlap condition). Consistent with previous research, saccadic latencies were shorter in gap conditions than they were in overlap conditions (the gap effect). In Experiment 1, a gap effect was observed for vergence eye movements. In Experiment 2, a gap effect was observed for saccades directed at a target that appeared during visual pursuit of a moving stimulus. In Experiment 3, a gap effect was observed for saccades directed at a target that appeared during extrafoveal fixation. The present results extend reports of the gap effect for saccadic shifts during visual fixation to (a) vergence shifts during visual fixation, (b) saccadic shifts during smooth visual pursuit, and (c) saccadic shifts during extrafoveal fixation. The present findings are discussed with respect to the incompatible goals of fixation-locking and fixation-shifting oculomotor responses.

Citing Articles

Multisensory temporal binding induces an illusory gap/overlap that reduces the expected audiovisual interactions on saccades but not manual responses.

Vidal M, Vitu F PLoS One. 2022; 17(4):e0266468.

PMID: 35390067 PMC: 8989229. DOI: 10.1371/journal.pone.0266468.

Frontal Eye Field Inactivation Reduces Saccade Preparation in the Superior Colliculus but Does Not Alter How Preparatory Activity Relates to Saccades of a Given Latency.

Dash S, Peel T, Lomber S, Corneil B eNeuro. 2018; 5(2).

PMID: 29766038 PMC: 5952303. DOI: 10.1523/ENEURO.0024-18.2018.

Saccade-vergence properties remain more stable over short-time repetition under overlap than under gap task: a preliminary study.

Lang A, Gaertner C, Ghassemi E, Yang Q, Orssaud C, Kapoula Z Front Hum Neurosci. 2014; 8:372.

PMID: 24917805 PMC: 4040468. DOI: 10.3389/fnhum.2014.00372.

Influence of removal of invisible fixation on the saccadic and manual gap effect.

Ueda H, Takahashi K, Watanabe K Exp Brain Res. 2013; 232(1):329-36.

PMID: 24162862 DOI: 10.1007/s00221-013-3743-6.

Eye-hand coordination in children with high functioning autism and Asperger's disorder using a gap-overlap paradigm.

Crippa A, Forti S, Perego P, Molteni M J Autism Dev Disord. 2012; 43(4):841-50.

PMID: 22865152 DOI: 10.1007/s10803-012-1623-8.

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