Attention, Neurochemically Speaking

Samuel R. Peretz peretz at grad1.cis.upenn.edu
Thu Apr 11 16:28:48 EST 1991


In article <23933 at as0c.sei.cmu.edu>, tv at sei.cmu.edu (T. VanderHeyden) writes:
|>Attention in humans is quite a varied thing. Children notice different 
|>things than adults do. People taking acid might fall in love with their 
|>bathroom toilets and spend the whole trip in the bathroom, while a 
|>seven-foot-tall tattooed skinhead in a knit minidress might escape notice 
|>in some sections of New York City.
|>
|>What's the chemical action going on here (LSD notwithstanding)? Is there a 
|>chemical released by some part of the brain that, when present, causes one 
|>to pay more attention to details and, when absent, causes one to ignore 
|>certain details? What's been written on this subject?
|>
|>Todd VanderHeyden
            
One hypothesis is that attention is related to synchronized oscillations
in certain brain regions.  I can't remember the exact reference, but there
was a paper by Francis Crick a couple years back regarding this
"searchlight" hypothesis of attention.  I think the brain region discussed
in that particular paper was the hypothalamus.

						--Sam

	<=======================================================>
	< Samuel R. Peretz			      		>
	< 126 Anatomy/Chemistry Bldg.		   \ /  	>
	< University of Pennsylvania		 ------- 	>
	< Inst. for Neurological Sciences	| 0   0 |	>
	< (215) 898-8048			|   V   |	>
	< srp at vision5.anatomy.upenn.edu		|  ===  |	>
	< aka sam at retina.anatomy.upenn.edu	 -------	>
	< aka peretz at grad1.cis.upenn.edu			>
	<=======================================================>



More information about the Neur-sci mailing list