Visual computation and saccadic eye movements: a theoretical perspective JOHN M. FINDLAY Department of Psychology, University of Durham, Durham DH1 3LE, England Received 20 May 1987; revised 16 September 1987; accepted 18 September 1987 Abstract-A simple instance of parallel computation in neural networks occurs when the eye orients to a novel visual target. Consideration of target-elicited saccadic eye movements opens the question of how spatial position is represented in the visual pathways involved in this response. It is argued that a point-for- point retinotopic coding of spatial position (the 'local sign' approach) is inadequate to account for the characteristics of the response. An alternative approach based on distributed coding is developed. 1. INTRODUCTION The main thrust of most work in computational vision has been towards the achievement of a coherent representational description from the raw visual input. However, there is an increasing interest in the relationships between vision and action where such a representational description may not necessarily be involved. One simple relationship concerns the orienting response in which a saccadic eye movement is elicited by a visual target. This situation attracted the attention of some of the pioneers of the information processing approach to vision (Pitts and
Spatial Vision (continued as Seeing & Perceiving from 2010) – Brill
Published: Jan 1, 1987
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