Developmental Psychology - some You Tube clips

Here are some clips that we've viewed in class recently. You might want to see them again, you might want to see them for the first time! And you might want to refer to them in Assignment 7.

First a clip of some old and original footage of Konrad Lorenz and his geese.

Next, a clip on temperament, from Thomas and Chess.

Here is a clip on temperament from Jerome Kagan.

Also today, here is the reference for Guiton (1966) and the chickens.  He reared some male chicks in isolation for 47 days, i.e. until they were mature (oven ready?).  While in isolation, they were fed only by an assistant in yellow gloves.  They became imprinted on yellow rubber gloves, and at one stage they attempted to mate with yellow rubber gloves.  The chicks had developed inappropriate social and sexual behaviour.  Guiton then kept the chickens with normal females and eventually they developed normal sexual behaviour, although they were past imprinting age.  This suggested the critical period may not be quite so critical.

Guiton, P. (1966) Early experience and sexual object choice in the Brown Leghorn.  Animal Behaviour, 14, 534-538.