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.     

Electroencephalographic correlations of temporally spaced responding and avoidance behavior

This study was undertaken to determine whether any EEG changes occurred during a multiple schedule of reinforcement consisting of repeated periods of avoidance behavior, a time-out (TO) period, and a period of differential reinforcement of low rates (DRL). The two monkeys were permanently implanted with bipolar electrodes in various subcortical areas. The EEG was recorded from these electrodes for several weeks before any behavioral training was undertaken. Training was then begun in the multiple schedule, and EEG recordings were taken frequently throughout the training period. When a stable performance level was achieved, drugs (dl-amphetamine and sodium pentobarbital) were introduced which disrupted the DRL performance but had little or no effect on avoidance behavior. The EEG recordings continued throughout these drug studies.

The data indicate that the marked behavioral differences noted in each component of the schedule were not reflected in the EEG. However, the EEG did correlate with the general level of alertness of the animals during the various components. The drugs which differentially affected the behavior in the components of the schedule did not differentially affect the EEG, but they did change the brain-wave activity equally in all components. Finally, EEG changes correlated with the complex motor response of lever pressing were not observed.

     

Winning or Losing Against an Opposite-Sex Peer on a Gender-Based Competitive Task

Two studies with heterosexual female and malecollege students explored the effects on mood and bodyimage resulting from a negative versus a positiveoutcome in a competitive interaction. In study 1,participants either succeeded or failed in comparison to anopposite-sex confederate on a gender-neutral task ofanagram solution. Study 2 added the dimension of thegender stereotypicality of the task by creatingempirically derived feminine (beauty aid knowledge) andmasculine (tool construction knowledge) conditions. Theresults indicated that women's anger significantlyincreased following the masculine task, regardless of the outcome. A marginally significantthree-way interaction resulted for the depressionmeasure: Females who won at the masculine task hadhigher levels of depression than males in thiscondition, and higher levels than both males and females inthe masculine-lose condition. In contrast, males who“won” on the feminine task had higher levelsof depression than females in this condition, and higher levels than both males and females who lost onthe feminine task. Discussion centers on the potentialusefulness of the gender-stereotypicality measure forfuture research and the need for followup work to replicate the current findings.     

Analysis of factor structure in a dream inventory

Intercorrelations of responses to the KJP dream inventory, initially a checklist of dream elements, were factor analyzed from a database from 65 graduate majors in psychology. Six factors were identified within the checklist: repetitive traumatic dreaming, reoccurring pleasantness, openness or depth, discontentedness, dissociative avoidance, and uninhibitedness. Scoring criteria were developed for each subscale.     

The variance error of the P50-discriminant

The P₅₀-discriminant has been reported elsewhere in connection with its use in predicting whether selective service registrants if inducted would become normal operative soldiers or would commit offenses causing their imprisonment. The standard error of the P₅₀-discriminant is a good measure to use in determining how far to the side of this statistic a particular case falls. The standard error formula itself has also been published elsewhere; but its derivation, as the variance error, is given here.The author gratefully acknowledges the very extensive assistance kindly given to him by Dr. Truman L. Kelley and Dr. Frederick Mosteller. This assistance was given without reference to the utility of the P₅₀-discriminant, upon which matter the author reports elsewhere and for which he takes full responsibility.     

The probabilistic import of illatives

It is not only overtly probabilistic illatives like makes it certain that but also apparently non-probabilistic ones like therefore that have probabilistic import. Illatives like therefore convey the meaning that the premise confers on the conclusion a probability not only greater than 0 but also greater than 1/2. But because they do not say whether that probability is equal to or less than 1, these illatives are appropriately called neutral.     

Posttraumatic recovery of traumatized newborns: effects on neuromotor and cognitive development during their first 6 months

Recovery after perinatal cerebral traumatism was studied in a group of 20 traumatized infants. The effects on the sequence of development during the next 6 months were observed for both motor and cognitive development and were compared with a control group of 20 normal babies. Results showed a significant delay for the abnormal group and a different recovery pattern between these two aspects of development. Motor development reached a normal level at 4 months, whereas cognitive development was still impaired at 6 months. These results were discussed in terms of possibly longer effects of perinatal traumatism on higher cortical functions than on motor functions.