Memory for movement in blind children: the role of previous visual experience

The role of previous visual experience in the reproduction of a criterion movement was examined in sighted, late-blinded, and congenitally blind children. Results showed that the congenitally blind reproduce movements at a low level of accuracy compared with the other two groups. Detailed analysis showed that although the congenitally blind could reproduce the extent of the movement accurately, the movement was poorly reproduced in terms of its orientation to the criterion movement and its orientation from a reference point. The role of prior vision in establishing a frame of reference is discussed.     

At the Crossroads: Racial and Womanist Identity Development in Black and White Women

This study explored the hypothesis that womanist identity and racial identity development are related. The racial identiy and womanist identity attitudes of 214 women were measured using the Black Racial Identity Attitude Scale, the White Racial Identity Attitude Scales (WRIAS), and the Womanist Identity Attitude Scale. Canonical correlation analysis was used to determine the nature of relationships among racial identity and womanist identity attitudes. Results showed that for Black women there was a significant relation between racial identity and womanist identity attitudes. Specifically, Internalization attitudes on the WRIAS were positively related to Level II (Encounter) and Level IV (Internalization) attitudes on the Womanist Identity Attitude Scale. Despite a larger number of White participants, no such relationship emerged for White women. Implications for theory, research, and counseling are discussed.     

Increased regional cerebral glucose metabolism and semantic memory performance in Alzheimer's disease: A pilot double blind transdermal nicotine positron emission tomography study

Nicotinic receptor dysfunction and impaired semantic memory occur early in Alzheimer's disease patients (AD). Previous research implied that nicotine's ability to enhance alertness, arousal, and cognition in a number of nonclinical populations was a function of its ability to stimulate CNS nicotinic cholinergic receptors. In this study it was hypothesized that transdermal administration of nicotine would increase both regional cerebral glucose metabolism (rCMRglc) and semantic memory (as assessed by verbal fluency). Two mild AD and two elderly controls underwent positron emission tomography scanning during a double blind nicotinic agonist verbal fluency challenge procedure. rCMRglc increases occurred in both AD patients, but not controls. In the two AD patients, verbal fluency scores increased by an average of 17%. One elderly control's verbal fluency increased, and the other decreased. These findings suggest that nicotine's effect on metabolism and verbal fluency is due to its ability to stimulate the cholinergic system.     

Increased theft as a side effect of sales promotion activities: An exploratory study

A combination of commonly used promotional activities, i.e., advertising, price reductions and increased exposure, was associated with increased thefts of six candy products. Thefts increased for each of the six products during the period the combination of promotional activities was used. Large increases in sales were observed for only two of the products. Sales of the other four products increased marginally or decreased in conjunction with promotional activities. When compared to normal sales conditions, the period of promotional activities produced less net profit per week for five of the six products. The results are of interest to retailers since they indicate that promotional activities for some products may produce a negative side effect, namely, increased theft. Further, promotional activities may not always produce increased sales.     

Gender schemas and the salience of gender: Individual differences in nonreversal discrimination learning

Sixty-seven 3–6-year-old children, identified as gender schematic and aschematic, completed a nonreversal discrimination learning task. This task permits examination of children's abilities to attend selectively to particular dimensions of a multidimensional stimulus. Gender typing and size of stimulus were the relevant target dimensions. Gender schematic children required significantly more trials to criterion when the shift was from sex type to size of stimulus, and significantly fewer trials to criterion when the shift was from size to sex type of stimulus, than did aschematic children. Gender aschematic children's performance was relatively unaffected by type of stimulus dimension. Results support predictions of the differential salience of the gender dimension to gender schematic and aschematic children.     

Cognitive processing of multidimensional stimuli in schizophrenia: formal modeling of judgment speed and content

This article presents a formal, mathematical account of relations between response times on simple cognitive tasks and content of complex judgments involving multiple stimulus dimensions for people with schizophrenia. Changes in multidimensional judgments were viewed as the result of interference from increased stages of encoding with respect to the individual dimensions. Information on dimensional properties encoded earlier in a judgment trial was considered to be more susceptible to loss over the rest of the trial, because of a larger number of encoding stages applied to the remaining dimensional properties. Model predictions were tested with samples of paranoid and nonparanoid schizophrenic participants and controls. Unidimensional encoding speed was assessed by reaction times in an explicit similarity ratings task, and multidimensional judgment content was assessed by the relative importance of different stimulus dimensions to participants' ratings in an implicit similarity ratings task. Results support validity of the model.     

The locus of sex differences in spatial ability

College men and women judged whether pairs of stimuli were identical or mirror images. One stimulus of a pair was presented upright; the other was rotated 0°–150° from the vertical. The stimuli were either alphanumeric symbols or unfamiliar letter-like characters of the type found on the Primary Mental Abilities Spatial Relations Test. For each individual, the linear function relating response latency to degree of rotation was computed. The slope of this function was steeper for women than for men. Further, the distribution of slopes was more variable among women, with approximately 30% falling outside the range of distribution for men. Women and men were quite similar in the accuracy of their judgments, the intercepts of the latency functions, and the precision with which the linear function characterized the latency data. It is suggested that the sex difference in the slope of the rotation function may reflect differences in strategies of mental rotation.     

The relationship between sexual identification and the use of defense mechanisms

A distinction is made between two levels of sexual identification. The deeper level was measured by May's Deprivation/Enhancement fantasy pattern, while the surface level was assessed using the Masculinity-Femininity of the Strong Vocational Interest Blank. These measures, while clearly differentiating between college males and females, were found to be unrelated to each other. Moreover, the deeper level was found to be related to the use of "masculine" and "feminine" defense mechanisms.