?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Effects+of+red+light+and+loud+noise+on+the+rate+at+which+monkeys+sample+the+sensory+environment&rft.creator=Humphrey%2C+Nicholas+K&rft.creator=Keeble%2C+Graham+R&rft.subject=Behavioral+Neuroscience&rft.subject=Animal+Behavior&rft.subject=Psychobiology&rft.description=Monkeys%2C+given+the+opportunity+to+move+between+two+featureless+chambers%2C+'sample'+first+one%2C+then+the+other+in+a+way+which+reflects+a+Poisson+decision+process.+The+rate+of+sampling+is+higher+in+red+light+than+in+blue+and+in+loud+noise+than+in+quietness.+We+suggest+that+monkeys+'tune'+their+sampling+rate+to+the+a+priori+probability+of+change+in+the+environment.&rft.date=1978&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F1736%2F2%2FPerception78.pdf&rft.identifier=++Humphrey%2C+Nicholas+K+and+Keeble%2C+Graham+R++(1978)+Effects+of+red+light+and+loud+noise+on+the+rate+at+which+monkeys+sample+the+sensory+environment.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F1736%2F