title: Another look at the control of behaviour by internal and external factors.
abstract: Toates (1981) claims that internal and external factors interact in the control of behaviour. This leads him to criticise the framework developed by McFarland and Sibly (1975) on the grounds that they assume that causal factors are independent. This paper argues that "independence" as used by McFarland and Sibly does not preclude the possibility of interactions as envisaged by Toates. It is then argued that it may be possible to represent the apparent examples of interactions by non-interacting causal factors.
mesh_terms: D000818:Animals; D004328:Drive / Q000502:physiology; D005247:Feeding Behavior; D005421:Flavoring Agents; D005508:Food Deprivation / Q000502:physiology; D007389:Internal-External Control; D008954:Models, Biological; D009042:Motivation / Q000502:physiology; D051381:Rats; D012527:Satiation / Q000502:physiology
chemical_list: D005421:Flavoring Agents