Psychology 3228 Lecture Notes - Lecture 6: Sexual Differentiation, John Bowlby, Virilization
16 Dec 2016
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The nature/nurture fallacy: this is a false dichotomy. Debate between early ethologists and comparative psychologists (behaviourists) Is a field"s area due more to its length or width (hebb) Is a cake due more to the recipe or its ingredients (bateson) Historical exchange between psychology and ethology (lehrman and lorenz) Lehrman"s critique of instinct successful but resulted in popular rejection of genetic contribution to behaviour. Instinctive or innate behaviours usually appear during development, are stereotyped and are complete. However, may be result of similar environment, not genetic influence (ie. imprinting) Gull chicks peck parent"s bill to elicit food regurgitation immediately after hatch. However, behaviour modified during first week: rotate heads to grasp parents" bill, become more specific in which stimuli will elicit pecking. Variation is preparedness to learn (language learning, taste aversion learning) Rats learn to associate taste with illness and light with electric shock. Birds learn to associate visual cue with illness.
