Corsi Blocks (spatial memory)

This is a widely used task to assess visual memory span. We administer this the same way it was designed.

Adaptation: Instructions translated into ASL

Stimuli:  The Corsi Block Test consists of nine black 1 1/4 inch cubes.  They are irregularly arranged on an 8 X 10 Blackboard in order to avoid depth contrast.  The blocks are numbered on the examiner's side for ease in recording performance, but the numbers are not visible to the subject.  The experimenter taps the blocks in a prearranged sequence and then instructs the subject to copy the tapping pattern

Procedures:  In the Corsi Block Test, the experimenter taps the blocks in a prearranged sequence and then instructs the subject to copy the tapping pattern.  For Tapping Forward, the subject is instructed to watch the examiner touch the blocks in sequences of increasing length; after each, the subject repeats the sequence from memory.  There are two trials for each sequence length, beginning with three blocks and ending with nine blocks.  On Tapping Backward, the subject is instructed to watch the examiner touch the blocks again in sequences of increasing length; after each the subject repeats the sequence in reverse.  Again there are two trials for each sequence length, beginning with three blocks and ending with nine blocks.  Each condition is discontinued after the subject fails both trials of a given sequence length. 


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