Abstract:
:Saccadic adaptation maintains saccade accuracy and has been studied with the intrasaccadic target displacement procedure: displacing a target backwards (or forwards) during saccade execution gradually decreases (or increases) subsequent saccade amplitude. Adaptation has traditionally been studied with targeting saccades which bring the eyes onto a new object. Within-object saccades take the eye from one position in an object to another position in the same object and have been shown to resist the intrasaccadic target displacement procedure. The amplitude of within-object saccades depends on object size rather than position, and we therefore hypothesized that within-object saccades might adapt in response to an intrasaccadic change in object size. In separate sessions, we increased or decreased object size during within-object saccade execution. Results showed amplitude lengthening or shortening, respectively. Furthermore, within-object saccade adaptation seems to share several characteristics with targeting-saccade adaptation.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Lavergne L,Vergilino-Perez D,Collins T,Doré-Mazars Kdoi
10.1007/s00221-010-2282-7subject
Has Abstractpub_date
2010-06-01 00:00:00pages
773-80issue
4eissn
0014-4819issn
1432-1106journal_volume
203pub_type
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