Interference in short-term retention of discrete movements.

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Abstract
Examined the retention of discrete lever movements with additional movements of the same lever interpolated in a 12-sec retention interval. In Exp. I with 28 males the position within the retention interval of 1 or 2 interpolated movements was varied. The absolute error of recall was significantly greater as the amount of interpolated material increased, and as its position moved toward the end of the retention interval. In Exp. II with 32 male Ss, 4 types of movements, ranging from a complete active to a complete passive movement, were interpolated. Forgetting was directly related to the amount of motor output during the retention interval, indicating that the most important information used to encode a discrete movement was the motor output required to execute it. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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