Towards a neuropathology of emotion and mood: neuropsychology
Article Abstract:
It is important to understand the neurobiology of emotion to effectively manage depression's phenotypes and genotypes, including its molecular, cellular, cognitive and sociocultural dimensions. It is already clear that depression can have a unipolar or bipolar course and that it can be transmitted genetically. A new study, using positron emission tomography (PET), shows that familial depressive patients present a consistently underactivated region of the prefrontal cortex. A follow up study showed that the size of the region is reduced in depressive patients, and found consistent anomalies in the one component.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Knowing how, knowing where
Article Abstract:
Two separate but complimentary reports, one by Francis Crick and Christof Koch and the other by Roger Tootell and his colleagues throw new light on the neural correlates of visual illusion. Tootell and his colleagues have pointed out that activity in human extrastriate visual cortices or the primary visual cortex is correlated with the illusion of motion. Crick and Koch's hypothesis proposes that neural correlates of conscious image is not found in the primary visual cortex.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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A neural basis for lexical retrieval
Article Abstract:
Neuropsychological studies using positron emission tomography show that multiple regions of the left cerebral hemisphere are necessary for the process of retrieving words denoting concrete entities. This portion is located outside the classic language areas of the brain. Regions that are anatomically separable process words for distinct kind of items. Impaired retrieval of words for actions are correlated with injury to the left prefrontal/premotor region.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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