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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Unconscious networking

Article Abstract:

Functional magnetic resonance imaging (fMRI) is used to examine the spontaneous fluctuations of neural activity in the monkey brain during anesthesia. The network has extended beyond those expected simply from connection between signal synapses and this approach has helped in revealing similarities between brain regions in different species, especially when combined with task-induced brain activations that are related to sensory or cognitive functions.

Author: Pinsk, Mark A., Kastner, Sabine
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
Consciousness

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Coding of intention in the posterior parietal cortex

Article Abstract:

The posterior parietal cortex which is located between the motor cortex and the areas of the brain that process visual and spatial information seems to be well placed for performing the function of transforming a sensory signal into motor output. This area contains signals representing visual stimuli that are routed into specific motor channels depending on the job in hand or signals related to motor intention.

Author: Snyder, L.H., Batista, A.P., Andersen, R.A.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
Cerebral cortex

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Intrinsic functional architecture in the anaesthetized monkey brain

Article Abstract:

Whole-brain blood-oxygen-level-dependent (BOLD) functional magnetic resonance imaging (fMRI) is used in isoflurane-anaesthetized monkeys even at anaesthetic levels known to induce profound loss of consciousness. The results have shown that coherent system fluctuations have reflected an evolutionarily conserved aspect of brain functional organization that transcends levels of consciousness.

Author: Vincent, J.L., Patel, G.H., Fox, M.D., Snyder, A.Z., Baker, J.T., Van Essen, D.C., Zempel, J.M., Snyder, L.H., Corbetta, M., Raichle, M.E.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
Loss of consciousness, Unconsciousness

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Subjects list: Research, Neural networks, Brain research, Neural network
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