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<strong>Planaria</strong> <strong>References</strong> 5 Westerman, R. A. (1963). Somatic inheritance of habituation of responses to light in planarians. Science, 140(Whole No. 3567), 676-677. Wilson, R. A. & Collins, G. D. (1967). Establishment of a classically conditioned response and transfer of training via cannibalism in planaria. Perceptual & Motor Skills, 24(3, PT. 1), 727-730. Yaremko, R. M.& Kimmel, H. D. (1969). Two procedures for studying partial reinforcement effects in classical conditioning of the planarian. Animal Behaviour, 17(1), 40-42.