Effect of alcohol and stress on emotion and physiological arousal

Forty-eight male normal drinkers were given a beverage to drink containing either tonic plus alcohol or tonic alone, and then were asked to perform arithmetic problems under either stressful or nonstressful conditions. Self-report measures of positive and negative affect and actual measures of physiological arousal (pulse rate and finger pulse volume) were collected at four times: baseline, ascending limb of the blood concentration BAC curve. Results indicated that (a) the stress manipulation was effective in increasing negative and actual physiological arousal, (b) subjects were more accurate in estimating the amount of alcohol they consumed under stressful than under nonstressful conditions, (c) alcohol was not effective in reducing the negative affect or physiological arousal produced by the stress, and (d) alcohol was effective in reducing negative affect and increasing positive affect under nonstressful conditions. These results support the growing body of research that suggests that alcohol produces a complex pattern of responses, one of which may be the enhancement of mood under nonstressful conditions.This research was suported in part by Grant No. AA00100 from the National Institute on Alcohol Abuse and Alcoholism, and a grant from the Vanderbilt University Research Council.     

Hippocampal lesions and pavlovian cardiovascular conditioning

New Zealand albino rabbits received either sham, cortical control, or hippocampal lesions and were subjected to differential Pavlovian conditioning in which tones of different frequencies served as conditional stimuli (CSs), and a brief paraorbital electric shock train served as the unconditional stimulus. Heart rate (HR), blood pressure (BP), and electromyographic (EMG) conditional responses (CRs) were recorded. Animals with cortical and hippocampal damage or animals with cortical damage alone revealed attenuated bradycardiac CRs, but HR CRs of the former two groups did not significantly differ. BP changes were minimal; reliable differences were not obtained between CS+ and CS?. However, these changes consisted of small but reliable depressor responses, which were not affected by either cortical or hippocampal lesions. Few EMG CRs were obtained. These data, combined with those of previous experiments, suggest that forebrain structures may modulate higher level processing of stimulus information, perhaps in terms of assessing the biological significance of such stimulation.     

Responsiveness to babies: Life-situation specific sex differences in adulthood

Responsivity to babies was observed in 96 mature adults representative of three junctures of parenthood: parents of infants, parents of 8-to-9-year-olds, and parents of adolescents. Among the measures used were reactions to an unfamiliar infant in a waiting room, interest in pictures of babies versus other objects, and sex-role concept and attitudinal questionnaires. Stage of family life cycle affected women's responsivity, but not men's. New mothers displayed a heightened generalized interest in babies which is optimally timed and functional in terms of sex-differentiated role requirements. A possible confounding between cohort effects and stage in the family life cycle was examined and rejected. Traditionally sex-typed behaviors were reinterpreted as life-situation specific rather than general traits.This study was supported by grants from NIMH (1 R03 MH28264-01) and from Boys Town Center for the Study of Youth Development, Stanford University. The authors thank Barbara Aschenbrenner for her invaluable assistance in all phases of the research.     

Beidler’s theory and human taste stimulation

Beidler’s fundamental taste equation, relating response magnitude and stimulus concentration, was found to be a useful means of expressing data derived from chemoreception experiments with man. Seven L-amino acids and glycine were studied over a wide range in concentration. To a first approximation, the data are in accord with Beidler’s taste equation. Interestingly, the change in free energy (ΔF) for each stimulus was found to be small, in agreement with earlier published conclusions that the initial step in chemoreception is most likely one of adsorption. Several means of depicting these data are evaluated and their contribution to a better understanding of chemoreception is discussed.     

GENDER ROLE AND POLITICAL OFFICE

Women are less represented in prestigious national political offices than they are in state and local offices. How this underrepresentation may be related to perceived characteristics of office and candidate are explored in the two studies described here. In Study 1, the masculinity/femininity of local, state, and national offices was analyzed; all levels of office were rated as more masculine than feminine. In Study 2, the sex as well as the gender role of a hypothetical presidential candidate was varied. Masculine and male candidates were evaluated as being more competent on presidential tasks such as dealing with terrorism; feminine and female candidates were rated higher on tasks such as solving problems in our educational system. Men, regardless of gender role, were perceived as being more likely to win a presidential election, and masculine tasks were evaluated as being more important than feminine presidential tasks. Implications for future female politicians are discussed.     

Interpersonal Judgments: Moral Responsibility and Blame

A deterministic perspective, believing choices are a function of hereditary and environmental factors, could theoretically impact perceived moral responsibility and lead to decreased blame in judging others. However, little consistent support has been found relating individual differences in deterministic attitudes to blame/tolerance for others. Perhaps, though, providing information regarding past background hardships affecting an individual's current lifestyle could potentially mediate harsh moralistic judgments of that individual. In the two studies reported here, we further explored the relation of free will/determinism scales to attitudes toward others as well as the effect of manipulating background information on the assignment of blame. As in previous research, little support was found for the relation of deterministic attitudes to tolerance toward others. However, judgments following manipulated information about hypothetical target persons supported the conclusion that target individuals are blamed less and given more sympathy if more information related to previous hardships is provided. In addition, in the second study perceived similarity to a target individual was associated with decreased blame/greater sympathy for a target with alcohol abuse problems.     

Black, Hispanic, and White American mothers of adolescents: construction of a national standard

Black, Hispanic, and White American mothers (n = 739) and adolescents (n = 806) completed the Parent Success Indicator to rate maternal performance on subscales of Communication, Use of Time, Teaching, Frustration, Satisfaction, and Information Needs. A weighted method corresponding to ethnic proportions in the American population was applied to construct a national standard for comparative reference. In general, both generations perceived mother performance as favorable. Teaching received the highest rating followed by Satisfaction levels. Mothers felt that Information Needs were their greatest limitation while adolescents reported that their mothers were prone to frustration. The amount of time mothers and adolescents spent together was the most significant independent variable influencing parent performance. Other variables such as income and marital status had limited impact.