The following review and appreciation of the pioneering work and character of Wallace I. (Wally) Welker provides a historical perspective on Welker's life-long quest for answers to fundamental questions on the relationships among brain, behavior, and evolution, and evaluates his impact upon comparative behavioral neuroscience.
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http://dx.doi.org/10.1111/j.1749-6632.2011.06012.x | DOI Listing |
Anat Rec (Hoboken)
September 2007
Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee 37235, USA.
Florida manatees have an extensive, well-developed system of vibrissae distributed over their entire bodies and especially concentrated on the face. Although behavioral and anatomical assessments support the manatee's reliance on somatosensation, a systematic analysis of the manatee thalamus and brainstem areas dedicated to tactile input has never been completed. Using histochemical and histological techniques (including stains for myelin, Nissl, cytochrome oxidase, and acetylcholinesterase), we characterized the relative size, extent, and specializations of somatosensory regions of the brainstem and thalamus.
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