The influence of colour and sound on neuronal activation during visual object naming
Hocking, Julia & Price, Cathy J. (2008) The influence of colour and sound on neuronal activation during visual object naming. Brain Research, 1241, pp. 92-102.
This paper investigates how neuronal activation for naming photographs of objects is influenced by the addition of appropriate colour or sound. Behaviourally, both colour and sound are known to facilitate object recognition from visual form. However, previous functional imaging studies have shown inconsistent effects. For example, the addition of appropriate colour has been shown to reduce antero-medial temporal activation whereas the addition of sound has been shown to increase posterior superior temporal activation. Here we compared the effect of adding colour or sound cues in the same experiment. We found that the addition of either the appropriate colour or sound increased activation for naming photographs of objects in bilateral occipital regions and the right anterior fusiform. Moreover, the addition of colour reduced left antero-medial temporal activation but this effect was not observed for the addition of object sound. We propose that activation in bilateral occipital and right fusiform areas precedes the integration of visual form with either its colour or associated sound. In contrast, left antero-medial temporal activation is reduced because object recognition is facilitated after colour and form have been integrated.
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|Item Type:||Journal Article|
|Keywords:||Auditory Perception/*physiology, Brain Mapping, Cerebral Cortex, Color Vision, Neuropsychological Tests, Occipital Lobe, Visual, Positron-Emission Tomography, Temporal Lobe, Visual Cortex, Visual Pathways|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NEUROSCIENCES (110900) > Central Nervous System (110903)
Australian and New Zealand Standard Research Classification > PSYCHOLOGY AND COGNITIVE SCIENCES (170000) > COGNITIVE SCIENCE (170200) > Linguistic Processes (incl. Speech Production and Comprehension) (170204)
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health
Current > Schools > School of Psychology & Counselling
|Copyright Owner:||Copyright 2008 Elsevier B.V.|
|Deposited On:||17 Jul 2014 23:48|
|Last Modified:||20 Jul 2014 23:29|
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