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A note on delay of knowledge of results in positioning responses.

Earlier studies of knowledge of results delay in positioning responses have required subjects to move "briskly" to the target position, creating a potential bias in the interpretation of the results for recall and recognition memory mechanisms. The present experiment varied delay (2 or 30 sec) in two groups of 20 females. Subjects were instructed to move very slowly and the starting positions were varied to prevent pre-programmed movements of a given extent. Even with these methodological changes, there was no evidence that the delay variable was relevant for learning in positioning responses.