The Effect of Internal Visualization on Digit Span Performance

Abstract

Fifty-two subjects were randomly assigned to one of four conditions according to a 2 × 2 factorial design in order to determine the effect of internal visualization on short-term memory for digits as measured by the Wechsler Digit Span subtest. Surprisingly, internal visualization (imaging with eyes closed) was found not to affect Digit Span performance significantly.

Key Words:

• digit span
• short-term memory
• Wechsler digit span
• WAIS-R
• WISC-R
• imagery