Human cortical processing of colour and pattern
Barrett, Nicholas, Large, Matthew, Smith, Glenn, Michie, Patricia, Karayanidis, Frini, Kavanagh, David J., Fawdry, Richard, Henderson, David, & O'Sullivan, Brendan (2001) Human cortical processing of colour and pattern. Human Brain Mapping, 13(4), pp. 213-225.
Investigated human visual processing of simple two-colour patterns using a delayed match to sample paradigm with positron emission tomography (PET). This study is unique in that the authors specifically designed the visual stimuli to be the same for both pattern and colour recognition with all patterns being abstract shapes not easily verbally coded composed of two-colour combinations. The authors did this to explore those brain regions required for both colour and pattern processing and to separate those areas of activation required for one or the other. 10 right-handed male volunteers aged 18–35 yrs were recruited. The authors found that both tasks activated similar occipital regions, the major difference being more extensive activation in pattern recognition. A right-sided network that involved the inferior parietal lobule, the head of the caudate nucleus, and the pulvinar nucleus of the thalamus was common to both paradigms. Pattern recognition also activated the left temporal pole and right lateral orbital gyrus, whereas colour recognition activated the left fusiform gyrus and several right frontal regions.
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|Item Type:||Journal Article|
|Keywords:||Vision, Visual attention, Cortical colour processing, Temporal lobe, Inferior parietal lobe, Caudate nucleus, Pulvinar nucleus, Right lateral orbital gyrus, Brain|
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Psychology & Counselling
|Deposited On:||09 Dec 2009 01:20|
|Last Modified:||10 Aug 2011 16:36|
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