Imagery Ratings and Recall in Congenitally Blind Subjects

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Abstract
Imagery ratings, incidental free recall, and intentional free recall of a group of young congenitally blind adults living in an institute for the blind and of a control group were compared. Words to be rated and recalled belonged to three categories: (a) high-imagery words whose referents can be sensorially experienced also by the blind; (b) high-imagery words whose referents cannot be experienced; and (c) low-imagery words. In the control group, both ratings of imagery and recall were affected by the category to which the word belonged. For the blind group the category of the word affected only the ratings of imagery which still assumed a peculiar form since words in category b received extremely low ratings. It is concluded that the blind can evaluate the imagery value of a word, but that their recall is not affected by the level of its imagery value. Therefore, the imagery value really seems to describe, as Paivio asserts, the susceptibility of an item to being coded in a specific visuo-imaginal way, which is more available for sighted than for blind people.

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