Consider for a moment the Mackworth clock. In the typical appiication of this task, a subject stares for more than an hour at a clock face without numbers, watching for the second hand to occasionaJly stuner ahead two 'seconds' rather than 'one'. Psychopharmacologists who view this task as a model of the cognitive demands of every day life must lead an excruciatingly tedious existence. I am not arguing that one type of task is intrinsically better than another nor that every study should employ a battery of tasks, but generalizing about the effea of a drug upon something as broad as cognitive performance from the results of only one task or one type of task is a recipe for disaster. Tlieorists in behavioral pharmacology need to base their generalizations about the cognitive effects of a drug upon a wide range of tasks which differ in task demands and complexity. Conclusions (1992) Enhancement of continuous performance task reaction time by smoking in non-deprived smokers, Psydiopharmaccdosy, 108, pp. 437-442. SHERWOOD, N . KERR, J. S. & HINDMARCH, I. (1992) Psychomotor performance in smokers following single and repeated doses of nicotine gum, P^chopharmacohgy, 308, pp. 432â436. SFIUCH, G . J., JUNE,
Addiction – Wiley
Published: Feb 1, 1994
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