Prenatal Exposure of Mice to Tobacco Smoke and Ethanol: Preweaning Behavioral and Growth Effects

The Psychological Record - Pregnant Swiss-albino mice were treated with cigarette smoke by inhalation and/or ethanol orally from Days 6 through 17 of gestation. Smoke-, ethanol-, and non-treatment...     

Early and late SEPs—The later the potential the greater the relevance to personality

Short (N₂₁−P₂₇) and long (N₁₃₀−P₂₀₀) latency somatosensory evoked potentials (SEPs) and personality [Eysenck Personality Questionnaire (EPQ) and a short-form Sensation Seeking scale (SS)] were investigated in 26 young healthy adults. Various modes of analysis were carried out on the SEPs, including peak-to-peak, root mean square, absolute area and perimeter measures, over various time windows. The amount of SEP variance accounted for by personality correlations depended on the mode of analysis. High Psychoticism and high Sensation Seeking (and to some extent high Extraversion) correlated negatively with measures of SEP amplitude, the relationship being stronger for later SEP components.     

A cognitive-behavioral therapy for sleep-maintenance insomnia in older adults.

Older adults (3 men, 4 women, aged 55 to 68 years) with chronic sleep-maintenance insomnia were treated sequentially with relaxation therapy (RT) and then with a cognitive-behavioral therapy (CBT) specifically designed for alleviating sleep maintenance problems. Sleep diaries and an objective measure of sleep, the sleep assessment device, showed only modest improvements in measures of wake time after sleep onset, sleep efficiency, and night-to-night sleep variability following RT. However, significant improvements in these measures were observed following CBT and at a 3-month follow-up. These findings, considered in conjunction with previous reports, suggest that CBT specifically addresses factors that sustain sleep maintenance complaints. Additional trials of CBT with larger samples are warranted.     

How examples may (and may not) constrain creativity

Three experiments were performed to test Smith, Ward, and Schumacher’s (1993) conformity hypothesis— that people’s ideas will conform to examples they are shown in a creative generation task. Conformity was observed in all three experiments; participants tended to incorporate critical features of experimenter-provided examples. However, examination of total output, elaborateness of design, and the noncritical features did not confirm that the conformity effect constrained creative output in any of the three experiments. Increasing the number of examples increased the conformity effect (Experiment 1). Examples that covaried features that are naturally uncorrelated in the real world led to a greater subjective rating of creativity (Experiment 2). A delay between presentation and test increased conformity (Experiment 3), just as models of inadvertent plagiarism would predict. The explanatory power of theoretical accounts such as activation, retrieval blocking, structured imagination, and category abstraction are evaluated.     

Monitoring source in an unconscious plagiarism paradigm

Current laboratory paradigms used to assess unconscious plagiarism consist of three tasks. First, participants generate solutions to a puzzle task with a partner (initial generation task); second, they recall their individual contribution (recall-own task); and third, they attempt to create new solutions that were not offered previously (generate-new task). An analysis of these tasks indicated that they differ in terms of the source monitoring they require. The two generative tasks require less differentiated information (e.g., familiarity) and relatively lax decision criteria. The recall-own task, however, demands more differentiated information and more extended decision criteria. In two experiments, factors known to influence source monitoring were manipulated. Consistent with the analysis, no effects were associated with the generative tasks. Recall-own plagiarisms increased when self- and other-generated solutions were difficult to distinguish (Experiment 1) and decreased when the two sources were easier to distinguish (Experiment 2).     

Microanalysis of Smokers' Beliefs about the Consequences of Quitting: Results from a Large Population Sample1

Using an expectancy-value approach, personal beliefs about the consequences of quitting were studied in a sample of 1,305 cigarette smokers derived from a representative sample of the United Kingdom population. Subjects evaluated 32 outcomes of continuing to smoke or stopping smoking in terms of how much they “wanted” or “feared” them (outcome evaluation, or OE) and then rated the likelihood of each outcome occurring under the two alternatives, yielding a likelihood difference (LD) score for each outcome. Subjects with relatively strong and relatively weak intentions to try to quit were compared with respect to their OE, LD, and OE × LD scores. The results showed consistent differences between intenders and nonintenders. Intenders rated every positive outcome as more desirable and every negative outcome as more undesirable. Intenders also believed that stopping smoking would lead to a larger increase in their chances of obtaining the benefits (health, financial, social, self-esteem) and a smaller increase in their chances of incurring the costs (negative affect, loss of enjoyment), compared with nonintenders. The product scores showing the largest relationships with intention were for the outcomes “feel proud of yourself”, “feel a sense of achievement”, “enjoy yourself”, “feel energetic”, and “set a good example to children”. The findings are discussed in terms of their implications for efforts to encourage more smokers to try to quit.     

A pseudoperceptual display system for investigating human statistical decision processes

A CRO display system is described in which a random sequence of dots appears on the CRO derived from a Gaussian distribution with a specified mean and standard deviation. Os are required to make judgments about the statistical parameters of the distributions.     

Secondary memory and very rapid forgetting

Studies of recall in the absence of expectancy (e.g., Muter, 1980) have suggested that forgetting from primary memory is much more rapid than previously assumed. Two experiments examined the role of secondary memory, as reflected by encoding strategies, in determining this rate of forgetting. Experiment 1 demonstrated that the type of encoding specified by orienting tasks can influence recall in a traditional Brown-Peterson task. Experiment 2 demonstrated a similar pattern of effects of orienting task in the Muter task when recall was not expected, despite much more rapid forgetting. The type of encoding engaged by the orienting tasks did not account for Muter's results. Expectancy and orienting task appear to have separable influences on resource allocation during encoding. The presence of secondary memory influences at even the shortest retention interval indicates that forgetting from primary memory may be even more rapid than has been proposed.     

Masculinity, Femininity, and Androgyny: Relations to Self-Esteem and Social Desirability

ABSTRACT The present investigation is a reanalysis of data from Antill and Cunningham (1979,1980) consisting of responses to five Masculinity-Femininity (MF) instruments, two self-esteem instruments, and two social desirability instruments The present study examined recently developed models of the MF/ esteem relation and the influence of social desirability on this relation The unique contribution of Masculinity (M) to esteem was consistently more positive than that of Femininity (F) which was either ml or negative, did not vary with sex as posited by sex-typed models, and did not interact with F as posited by interactive androgyny models Partialing out the effects of social desirability failed to alter the general pattern of results In contrast to esteem, social desirability was more correlated with F than M, and these findings were consistent with the observation that esteem items may reflect stereotypically masculine characteristics whereas social desirability items reflect stereotypically feminine characteristics The findings of the present study, and those of previous research, were examined in relation to important methodological issues that have been largely ignored by previous research in this area