The primate amygdala represents the positive and negative value of visual stimuli during learning
Article Abstract:
A study is conducted to determine whether positive and negative conditioned visual stimuli engage the same or different populations of amygdala neurons and to characterize the relative contribution of conditioned value and image identity to neuronal responses. The results shows that the activity of neurons encoding positive and negative is not related to motor responses and the amygdala neurons can rapidly adjust their activity to reflect image value.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Motion streaks provide a spatial code for motion direction
Article Abstract:
Primate area V1 neurons are selective for spatial orientation. Thresholds for moving gaussian dots were measured to determine if spatial orientation signals for motion direction exist in the human visual system. It is indicated that the human visual system can estimate motion direction by undertaking a spatial analysis of motion streaks, as well as estimating motion direction by combining velocity components.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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Optimal eye movement strategies in visual search
Article Abstract:
The different optimal eye movement strategies used for a foveated visual system are explored. Humans achieve nearly optical search performance, even though humans integrate information poorly across fixations and evolution.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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