Chronic drinking, binge drinking, and drunk driving II

Data from the Rhode Island Behavioral Risk Factor Survey on self-reported alcohol consumption and drunk driving were examined. Driving while intoxicated was significantly associated with both binge drinking and chronic drinking, but the measures of drinking were not significantly associated.     

Judgement of control revisited: Are the depressed realistic or pessimistic?

The study, firstly, examined the depressive realism postulate in relation to control judgments. A group of depressed and nondepressed undergraduates were exposed to a total of six judgement of control tasks (from 0% control tio 100% control). Depressed and nondepressed subjects did not differ in their control judgements. Secondlym, an attempt is made to classify subjects on the basis of these six judgements of control tasks as optimisticm, realistic and pessimistic in perceived control judgements.It was found that pessimistic rather than realistic subjects, had higher depressive symptomatology. Lastly, pessimism about control predicted the depressive symptomatology as assessed three months later. The results are discussed in relation to the phenomenon of depressive realism and the hopelessness theory of depression.     

Adolescent problem behavior: the influence of parents and peers

This paper presents evidence that the Patterson et al. (1992) model of development of antisocial behavior in children generalizes to the development of a wide array of problem behaviors during later adolescence and that youth antisocial behavior, high-risk sexual behavior, academic failure and substance use form a single problem behavior construct. Structural equation modeling methods were applied to 24-month longitudinal data from 204 adolescents and parents. The model fit the data well, accounting for 52% of the variance in adolescent problem behavior. Specifically, families experiencing high levels of conflict were more likely to have low levels of parent-child involvement. These family conditions were related to poor parental monitoring and association with deviant peers one year later. Poor parental monitoring and associations with deviant peers were strong proximal predictors of engagement in an array of problem behaviors at two-year follow-up.     

Parental coping with their child's death

The impact of the death of 19 children form malignancy on subsequent patterns of parental coping was evaluated in a retrospective study of 33 Dutch parents, who had been bereaved for 19 months on average. Parents who had lost older children were compared with those who had lost younger ones on the Utrecht Coping List, which has been compared with a Dutch norm group. Coping styles of the bereaved parents differed significantly from those of the norm group. These differences were associated with the poorer mental health of the bereaved group as a whole. Parents of older children coped less well than those of younger ones.     

Asymmetrical state dependency from temporary septal area dysfunction in rats.

Rats with cannulas implanted in the septal area were conditioned, tested, or both conditioned and tested shortly after intracerebral injection of local anesthetic via the cannulas. A 2 X 2 factorial design was used to determine whether the presumed state of temporary septal area dysfunction, previously shown to produce amnesia, has state-dependent properties. A state-dependent learning effect was observed in the rats both conditioned and tested in the dysfunctional stat remembered the aversive conditioning better than those conditioned in the dysfunctional state but tested in the normal state. Since rats conditioned in the normal state but tested during septal dysfunction did appear to exhibit conditioned fear when tested, the state-dependent effect was asymmetrical. Performance effects of the procaine injection were observed and accounted for in determining the state-dependent nature of temporary septal area dysfunction.     

Attention bands in absolute identification

If both the number of one-dimensional signals and their range are sufficiently large (about 7 and 20 dB for loudness), the information transmitted in absolute identification is not much increased by increasing either variable (Miller, 1956; Braida & Durlach, 1972). The data can be represented in terms of Thurstonian discriminal dispersions in which the variance is proportional to the square of the signal range in decibels (Durlach & Braida, 1969; Gravetter & Lockhead, 1973), but it is by no means obvious what sorts of mechanisms would lead to this model. An alternative is proposed, namely, that there is a roving attention band, about 10 to 15 dB wide, such that signals falling within the band are represented by a sensory sample size about an order ot magnitude larger than when the same signal falls outside the band. With reasonable choices for parameters, including the subjective continuum growing as a power function of intensity with an exponent about 3, this nicely accounts for the data. In an attempt to examine the change of performance with range, we replicated the BraidaoDurlach experiment with many additional points. These data are not, however, adequate to decide between the two models.     

The psychological distance to reward

Pigeons' responses in the presence of two concurrently available (initial-link) stimuli produced entry into one of two different and mutually exclusive terminal link stimuli according to identical but independent variable-interval schedules. In one experiment, a two-component chained fixed-interval schedule produced food in one terminal link while a simple fixed-interval schedule produced food in the other terminal link. When the interreinforcement intervals were equal in the two terminal links (i.e., the simple fixed-interval was twice the size of each of the components in the chained schedule) pigeons preferred the simple fixed-interval as measured by their relative rates of responding in the concurrently available initial links. This preference increased as the duration of the terminal links increased. The preference could be reversed by making the simple fixed-interval schedule sufficiently longer than the chained schedule. In the second experiment, the terminal links consisted of two- vs three-component chained fixed-intervals, again with equal interreinforcement intervals. Pigeons preferred the two-component chain to the three-component chain, although these results were less consistent and less dramatic than those in the first experiment. Again, preference increased as the duration of the terminal links increased. The results show that an organism's choice for a schedule will be substantially lowered by the chaining operation even when the interreinforcement interval remains constant.