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Mechanisms of elementary motion detection in human vision

Reference	S10058
Principal Investigator / Supervisor	Professor Michael Morgan
Co-Investigators / Co-Supervisors
Institution	City, University of London
Department	Institute of Health Sciences
Funding type	Research
Value (£)	146,993
Status	Completed
Type	Research Grant
Start date	01/10/1998
End date	01/10/2001
Duration	36 months

Abstract

The purpose is to investigate the mechanisms of the elementary motion detector (EMD) in human vision, using a combination of psychophysical, pharmacological and functional brain imaging techniques. The main questions are 1) Is there a multiplicative nonlinearity in motion detection, as in the Reichardt correlator model? 2) Are there EMD's for colour as well as luminance? 3) Are the EMD's for 'second order' motion similar in their operation to those for first-order motion? 4) What is the contribution of the NMDA receptor to the EMD? 5) What is the nature of the EMD for motion-in-depth? 6) What is the nature of the spatial and temporal filters preceding the EMD? We shall examine these questions using a contrast facilitation technique developed by Morgan & Chubb, in which invisible motion sequences are made visible by the addition of a stationary stimulus.

Summary

unavailable

Committee	Closed Committee - Animal Sciences (AS)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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