SUMMARY Single night sleep recordings in closed head injury patients 6 to 59 months after injury revealed less stage I and a greater number of awakenings compared to age matched controls. Neither the time spent in REM sleep nor the Wechsler Memory Quotient were related to complaints of decreased or absent dreaming following injury. The proportion of REM and number of awakenings, however, showed a moderate relationship to certain behavioural problems.
Visual capture was explored using three types of vision-"touch" conflicts. The results indicated that the amount of visual capture differed for the three tasks. In one task (slant judgments) strong, but incomplete, visual capture occurred, in another (a length judgment task) an approximate compromise between the two modalities was found, and in the third task (texture judgments) a trend toward touch capture occurred. In two additional experiments using the slant task, the effects of brief training with one of the competing modalities and the effects of manipulating certain aspects of the stimulus display were explored. The bried training did not alter the resolution of the conflict but varying visual clarity and felt texture of the rod whose slant was being judged did affect visual capture.
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