Effects of Arousal on Everyday Memory

The notion of an unidimensional continuum of arousal is difficult to sustain, as is the universality of predictions from the Yerkes-Dodson law. A brief his- torical account of how these difficulties have arisen is provided, as well as sketches of some theoretical alternatives that have appeared in the past 10 years. It is argued that this more recent theorizing can supply explanatory constructs to bring order to the data on the relation of increases in arousal to memory performance. The argument is illustrated by an analysis of a number of studies involving everyday memory performance, studies involving encod- ing of eyewitness memories or retrieval of complex motor sequences.