کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4353429 1298458 2012 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unmasking the mysteries of the habenula in pain and analgesia
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Unmasking the mysteries of the habenula in pain and analgesia
چکیده انگلیسی

The habenula is a small bilateral structure in the posterior–medial aspect of the dorsal thalamus that has been implicated in a remarkably wide range of behaviors including olfaction, ingestion, mating, endocrine and reward function, pain and analgesia. Afferent connections from forebrain structures send inputs to the lateral and medial habenula where efferents are mainly projected to brainstem regions that include well-known pain modulatory regions such as the periaqueductal gray and raphe nuclei. A convergence of preclinical data implicates the region in multiple behaviors that may be considered part of the pain experience including a putative role in pain modulation, affective, and motivational processes. The habenula seems to play a role as an evaluator, acting as a major point of convergence where external stimuli is received, evaluated, and redirected for motivation of appropriate behavioral response. Here, we review the role of the habenula in pain and analgesia, consider its potential role in chronic pain, and review more recent clinical and functional imaging data of the habenula from animals and humans. Even through the habenula is a small brain structure, advances in structural and functional imaging in humans should allow for further advancement of our understanding of its role in pain and analgesia.


► Convergent data implicating a habenula role in pain processing.
► The anatomy of the habenula is dissected to show connectivity with afferent and modulatory pain systems.
► The habenula in pain and analgesia.
► Habenula and behaviors associated with chronic pain.
► Functional imaging of the habenula.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Neurobiology - Volume 96, Issue 2, February 2012, Pages 208–219
نویسندگان
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