Reward dominance among children with disruptive behavior disorders

Investigated was a deficit in avoidance learning in situations of competing rewards and punishments in boys with behavior disorders. This learning style has been found to differentiate adults with psychopathy and controls and has been labeled reward dominance. The present study investigated the reward dominance paradigm in a group of 9- to 13-year-old boys with disruptive behavior disorders (N=21) and a normal control group (N=22). Subjects played four computer games programmed to provide the subject with a steadily decreasing ratio of rewards to punishments. Although the groups did not differ initially on the number of trials played, significant group differences emerged when measures of anxiety were included in the analysis. That is, boys with disruptive behavior disorders played more trials (reward dominance) only when the effect of anxiety was controlled. These findings are consistent with Gray's biobehavioral theory of personality and are also consistent with research indicating that anxiety is an important marker for a distinct subgroup of children with behavior problems.     

The interaction of personality and job scope in predicting turnover

The interaction of employee personality characteristics and job scope in the prediction of turnover was studied. One hundred and nine individuals employed as machine operators (low-scope job) and scientific and technical personnel (high-scope job) within a large manufacturing organization were the sample. No direct relationships were found between personality characteristics and turnover for the combined sample of employees on high- and low-scope jobs. When correlational analyses were carried out within job scope samples it was evident that personality and job scope interacted in predicting turnover. For employees on high-scope jobs, turnover was negatively related to the need for achievement and positively related to the need for affiliation. Turnover was negatively related to the need for affiliation among employees on low-scope jobs. The implications of these findings for future research on turnover were discussed.     

Contingency management of self-report and cleaning behavior

The effects of a contingency management program utilizing a reinforcing event (breakfast) were investigated in respect to cabin-cleaning and self-report behaviors in a group of nine male campers, ranging in age from 11 to 13. Control of cabin-cleaning behavior was clearly demonstrated. The large discrepancy between camper self-ratings and counselor ratings disappeared when the opportunity to line up for breakfast was made contingent upon both accuracy of self-report and improved cleaning performance.     

Perceived tachistoscopic duration and early visual processing in preschool children and adults

Two experiments further explored the Avant et al. (1975) finding that stimulus familiarity influences prerecognition processing to generate differences in the apparent duration of tachistoscopic flashes. The first experiment tested for developmental differences in the effects of upright versus 90°, 180°, and 270° rotations of a single letter or number upon the apparent duration of pre- and postmasked 30- and 50-msec flashes with adults and 4- and 5-year-old children. All age groups judged upright presentations to be of briefer duration. These differences in apparent duration were interpreted to index the automaticity of contacts between stimulus inputs and their memory representations. Failure of the children to recognize the letter and number in any orientation indicates that contact between stimulus inputs and memory representations precedes allocation of attention to the presented stimulus. The second experiment explored the influence of spatial structures which are not coded verbally by testing effects of good and poor dot pattern Gestalts on the apparent duration of tachistoscopic flashes. Adults discriminated between apparent durations of good and poor Gestalts but 4- and 5-year-olds did not. Apparent duration differences in the two experiments showed that spatial pattern structure and familiarity with verbal stimuli influence early visual processing in different ways.     

Effects of elaboration and relational distinctiveness on sentence memory

Memory for normal and distinct target sentences in elaborated and isolated contexts was examined in two experiments. Distinctiveness was operationalized as the uniqueness of the stated relation among the elements (words) of the sentence. In both experiments distinct target sentences were recalled significantly better than normal target sentences. Robust elaboration effects emerged only in Experiment 2, however, when care was taken to construct elaborations that were causally related to the target sentences. Further, the positive mnemonic effects of elaboration in Experiment 2 combined additively with the distinctiveness effects. These results demonstrate that text manipulations emphasizing both relational distinctiveness and causal elaboration facilitate memory performance. Several possible theoretical mechanisms underlying this facilitation are outlined.     

I. Genotype-environment interaction in the schizophrenia spectrum: genetic liability and global family ratings in the Finnish Adoption Study

In the Finnish Adoption Study, a national sample of adoptees with high versus low genetic liability for schizophrenia spectrum disorders was indexed by DSM-III-R diagnoses of their biological, adopting-away mothers. The rearing-family environments of the adoptees were independently evaluated from global ratings of directly observed adoptive family relationships. The interaction of high genetic liability and dysfunction of the rearing families predicted highly significantly to schizophrenia spectrum disorder of the adoptees at 21-year follow-up. Either low genetic liability or healthy rearing protected against a spectrum outcomes for the adoptees. Initial adoptive parent diagnosis, as a proxy for rearing family dysfunction, predicted to adoptee outcome only as a trend.