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| • |
But…subsequent
work provided the insight that the
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results from
lesion studies may have been due to
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damage of fibers
of passage rather than due to loss of
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cell bodies in
distinct parts of the hypothalamus.
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In particular,
hypothalamus lesions may damage fibers
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of:
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the trigeminal
system which affect sensory processing important
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for feeding
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Dopaminergic
neurons projecting from the substantia nigra to the
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striatum, as
wells as those that project from the ventral
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tegmental area to
innervate parts of the limbic system.
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Dopaminergic
neurons are thought to be important for reward
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processing and
arousal, and therefore may affect feeding
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behavior.
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