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Biomedical subjects

J Scull

Publications and source records attributed to J Scull.

4 recordsLinked to original sources
PubMed1985

Elective mutism associated with selective inactivity.

In this short case report, elective mutism was only one aspect of a young boy's general pattern of selective non-responding. Behavior management procedures were successfully applied to his inactive nonverbal behavior, as well as his infrequent speech. Nonverbal responses were the easiest to train because they could be physically prompted if he did not respond on his own. Several of the successful treatment techniques were being employed by the mother prior to any intervention.

Behavior Therapy↗
PubMed1973

Interactions in multiple schedules with different responses in each of the components.

Pigeons were exposed to multiple schedules in which a key was lit in one component and a bar was present in the other. Ten subjects were trained to peck the key and to press the bar with their feet, and four subjects were trained to peck both the bar and the key. After a period of exposure to variable-interval reinforcement in both components, subjects were exposed to extinction in one component. Only one of the 10 pigeons in the key-peck:bar-press condition showed an increase in rate in the other component, while seven of them showed a decrease. In the key-peck:bar-peck condition, three of the four subjects showed positive contrast. The data suggest that a condition for contrast to occur is that topographically similar behaviors be required in both components of the multiple schedule.

Journal Article↗