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FPL and sweep VEP to tritan stimuli in young human infants

FPL and sweep VEP to tritan stimuli in young human infants
FPL and sweep VEP to tritan stimuli in young human infants
Young infants can distinguish red from green without brightness cues which shows that neural pathways processing color information (the ‘red–green’ color-opponent pathway) are functional early in life. There is some doubt over whether the ‘blue–yellow’ pathway is functional in young infants. Here, we show that infants behave like tritanopic adults until 2–3 months post-term age. By 3–4 months, infants distinguish tritan stimuli, and therefore, the ‘blue–yellow’ pathway must be functional by that age. Our sweep visual evoked potentials to identical stimuli, however, are not significantly above noise levels, in disagreement with the behavioral responses. We discuss several possible explanations for the discrepancy.
infant color vision, isoluminance, visual development, visual evoked potentials, forced-choice preferential looking
0042-6989
2879-2891
Suttle, Catherine M.
aafd7e06-00de-4e4d-ade6-ff1d268fcc38
Banks, Martin S.
3fbd52ec-54e9-4f60-bf03-587c1959cecb
Graf, Erich W.
1a5123e2-8f05-4084-a6e6-837dcfc66209
Suttle, Catherine M.
aafd7e06-00de-4e4d-ade6-ff1d268fcc38
Banks, Martin S.
3fbd52ec-54e9-4f60-bf03-587c1959cecb
Graf, Erich W.
1a5123e2-8f05-4084-a6e6-837dcfc66209

Suttle, Catherine M., Banks, Martin S. and Graf, Erich W. (2002) FPL and sweep VEP to tritan stimuli in young human infants Vision Research, 42, (26), pp. 2879-2891. (doi:10.1016/S0042-6989(02)00333-4).

Record type: Article

Abstract

Young infants can distinguish red from green without brightness cues which shows that neural pathways processing color information (the ‘red–green’ color-opponent pathway) are functional early in life. There is some doubt over whether the ‘blue–yellow’ pathway is functional in young infants. Here, we show that infants behave like tritanopic adults until 2–3 months post-term age. By 3–4 months, infants distinguish tritan stimuli, and therefore, the ‘blue–yellow’ pathway must be functional by that age. Our sweep visual evoked potentials to identical stimuli, however, are not significantly above noise levels, in disagreement with the behavioral responses. We discuss several possible explanations for the discrepancy.

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More information

Published date: 2002
Keywords: infant color vision, isoluminance, visual development, visual evoked potentials, forced-choice preferential looking

Identifiers

Local EPrints ID: 18304
URI: http://eprints.soton.ac.uk/id/eprint/18304
ISSN: 0042-6989
PURE UUID: a0e85349-2577-4208-b999-42bb6d69b57d
ORCID for Erich W. Graf: ORCID iD orcid.org/0000-0002-3162-4233

Catalogue record

Date deposited: 17 Jan 2006
Last modified: 17 Jul 2017 16:36

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Contributors

Author: Catherine M. Suttle
Author: Martin S. Banks
Author: Erich W. Graf ORCID iD

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