Primary obsessional slowness: a nursing treatment programme with a 13-year-old male adolescent

A 13-year-old male adolescent inpatient with a 5-year history of primary obsessional slowness was treated using a nursing intervention programme involving prompting, pacing and shaping, or participant modelling of four types of self-care behaviour. The treatments produced an immediate increase in response rate of three of the four behaviour targets. Treatment gains were not maintained during the gradual fading of the intervention programme. Possible reasons for failure to achieve treatment maintenance are discussed in light of the literature on primary obsessional slowness.     

Spatial depth relationships in young children's drawings

Previous research suggests that young children do not attempt to represent depth relationships between objects in their drawings. The present study, however, showed that when both objects are visible and the children's attention is drawn to the depth relationship between them, most 5-, 6-, and 7-year-olds do attempt to portray this relationship.     

Priming effects with food and water reinforcers in hamsters

Hamsters were tested in a square maze with either food or water in each corner compartment. A substantial priming effect (runway times increase as intertrial interval increases) was demonstrated using both food and water reinforcers. A lengthy period of free access to food and water (satiation) immediately abolished the priming effect, although runway times in general remained relatively rapid for some time. Extinction of rapid runway times proceeded more slowly under food than under water deprivation. It is concluded that priming is a widespread phenomenon associated with the presentation of a reinforcing stimulus to an appropriately deprived animal.     

Speech disturbances in presenile dementia related to local cerebral blood flow abnormalities in the dominant hemisphere

Ten female patients, age 50–70 years, suffering from presenile dementia and showing signs of defective speech function were analyzed. All patients underwent measurements of regional cerebral blood flow (rCBF) by the xenon clearance technique using a 32-detector piece of equipment, and all showed a marked reduction of the hemisphere mean blood flow level. In addition, regional decreases of blood flow of the gray matter was demonstrated. Patients with a marked reduction in the temporo-parieto-occipital regions showed signs of receptive aphasia including alexia and agraphia. Patients with a marked frontal reduction showed signs of expressive aphasia of various types including stereotyped language, voluble speech, echolalia, and mutism in later stages. The results give further support to our previous conclusion that subsymptoms of presenile dementia, apparently also speech disturbances, can be related to local degenerative changes in the brain, which in their turn are accompanied by local reductions of the blood flow of the gray matter. There is pathoanatomical evidence to support this conclusion.     

Attribution and aggression: The misattribution of anger

An experiment was designed to test the effect of misattribution of anger on subsequent aggression. Subjects were induced to take a placebo with half of the subjects led to expect arousal symptoms and the other half led to expect relaxation. Crosscutting the pill manipulation, half of the subjects were provoked by a confederate and half were not. All subjects were then given an opportunity to aggress against the confederate. As predicted, relaxation pill-provoked subjects were significantly more aggressive than subjects in the other conditions (p < .025), with arousal pill-provoked subjects no more aggressive than no provocation controls.     

Impairment of nonlinguistic hand movements in a deaf aphasic

A deaf man who became aphasic for sign language was seen 4 years after a left-hemisphere stroke. While not impaired on traditional apraxia tests, he was impaired, relative to nonaphasic deaf controls, in the imitation of complex nonlinguistic hand movements. He was not impaired on single isolated movements. These findings are interpreted as supporting a concept of left-hemisphere function which emphasizes complex motor control.     

Cross-modal matching and association under sodium amytal

Anatomical and theoretical considerations, as well as experimental findings, have yielded conflicting points of view regarding the abilities of the right hemisphere in man to accomplish cross-modal transfer of information. Auditory—visual cross-modal matching (CMM) and association (CMA) abilities of the left and right hemisphere (LH and RH) were tested, using the Wada intracarotid sodium amytal technique. It was found that the RH performed slightly better on these tasks than the LH. These findings contrast with results of other techniques which indicate that the RH cannot perform CMM and CMA.