@article {309058, title = {Pulvinar neurons reveal neurobiological evidence of past selection for rapid detection of snakes.}, journal = {Proc Natl Acad Sci U S A}, volume = {110}, year = {2013}, note = {http://www.pnas.org/content/early/2013/10/23/1312648110}, month = {2013 Nov 19}, pages = {19000-5}, abstract = {

Snakes and their relationships with humans and other primates have attracted broad attention from multiple fields of study, but not, surprisingly, from neuroscience, despite the involvement of the visual system and strong behavioral and physiological evidence that humans and other primates can detect snakes faster than innocuous objects. Here, we report the existence of neurons in the primate medial and dorsolateral pulvinar that respond selectively to visual images of snakes. Compared with three other categories of stimuli (monkey faces, monkey hands, and geometrical shapes), snakes elicited the strongest, fastest responses, and the responses were not reduced by low spatial filtering. These findings integrate neuroscience with evolutionary biology, anthropology, psychology, herpetology, and primatology by identifying a neurobiological basis for primates{\textquoteright} heightened visual sensitivity to snakes, and adding a crucial component to the growing evolutionary perspective that snakes have long shaped our primate lineage.

}, keywords = {Adaptation, Biological, Analysis of Variance, Animals, Biological Evolution, Macaca, Models, Biological, Neurons, Photic Stimulation, Pulvinar, Reaction Time, Recognition (Psychology), Snakes, Visual perception}, issn = {1091-6490}, doi = {10.1073/pnas.1312648110}, url = {http://www.ncbi.nlm.nih.gov/pubmed/24167268}, author = {Van Le, Quan and Isbell, Lynne A and Matsumoto, Jumpei and Nguyen, Minh and Hori, Etsuro and Maior, Rafael S and Tomaz, Carlos and Tran, Anh Hai and Ono, Taketoshi and Nishijo, Hisao} }