Abstract:
:This study examined the contributions made by peripheral and central vision to reaching and grasping. A specially designed contact lens system was used to restrict information to the peripheral retina. Modified goggles were used to restrict information to the central retina. A WATSMART motion analysis system was used to record and reconstruct three dimensional kinematic data. Analyses included an examination of peak kinematic values as well as a qualitative description of the trajectory profiles as related to transport and grasp components. With only peripheral vision, information related to size and shape of an object was inadequate, thus affecting the organization of both the transport and grasp components. With only central vision, information related to the location of an object was inadequate, affecting the organization of the transport but not the grasp component. Implications are discussed relevant to the current models of visuomotor control of reaching and grasping.
journal_name
Neuropsychologiajournal_title
Neuropsychologiaauthors
Sivak B,MacKenzie CLdoi
10.1016/0028-3932(90)90143-csubject
Has Abstractpub_date
1990-01-01 00:00:00pages
1095-116issue
10eissn
0028-3932issn
1873-3514pii
0028-3932(90)90143-Cjournal_volume
28pub_type
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