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Functional Neuro-Imaging and Post-Traumatic Olfactory Impairment
To evaluate via a research literature survey the anterior neurological significance of decreased olfactory functioning following traumatic brain injuries. A computer literature review was performed to locate all functional neuro-imaging studies on patients with post-traumatic anosmia and other olfac...
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Published in: | Indian journal of psychological medicine 2010-07, Vol.32 (2), p.93-98 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that cite this one |
Online Access: | Request full text |
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Summary: | To evaluate via a research literature survey the anterior neurological significance of decreased olfactory functioning following traumatic brain injuries.
A computer literature review was performed to locate all functional neuro-imaging studies on patients with post-traumatic anosmia and other olfactory deficits.
A convergence of findings from nine functional neuro-imaging studies indicating evidence for reduced metabolic activity at rest or relative hypo-perfusion during olfactory activations. Hypo-activation of the prefrontal regions was apparent in all nine post-traumatic samples, with three samples yielding evidence of reduced activity in the temporal regions as well.
The practical ramifications include the reasonable hypothesis that a total anosmic head trauma patient likely has frontal lobe involvement. |
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ISSN: | 0253-7176 0975-1564 |
DOI: | 10.4103/0253-7176.78504 |