Do Animals See Colors? An Anthropoccentrist's Guide to Animals,The Color Blind,and Far Away

Philosophical Studies -     

The impact of a new emotional self-management program on stress, emotions, heart rate variability, DHEA and cortisol

This study examined the effects on healthy adults of a new emotional self-management program, consisting of two key techniques, “Cut-Thru” and the “Heart Lock-In.” These techniques are designed to eliminate negative thought loops and promote sustained positive emotional states. The hypotheses were that training and practice in these techniques would yield lowered levels of stress and negative emotion and cortisol, while resulting in increased positive emotion and DHEA levels over a one-month period. In addition, we hypothesized that increased coherence in heart rate variability patterns would be observed during the practice of the techniques. Forty-five healthy adults participated in the study, fifteen of whom acted as a comparison group for the psychological measures. Salivary DHEA/DHEAS and cortisol levels were measured, autonomic nervous system function was assessed by heart rate variability analysis, and emotions were measured using a psychological questionnaire. Individuals in the experimental group were assessed before and four weeks after receiving training in the self-management techniques. The experimental group experienced significant increases in the positive affect scales of Caring and Vigor and significant decreases in the negative affect scales of Guilt, Hostility, Burnout, Anxiety and Stress Effects, while no significant changes were seen in the comparison group. There was a mean 23 percent reduction in cortisol and a 100 percent increase in DHEA/DHEAS in the experimental group. DHEA was significantly and positively related to the affective state Warmheartedness, whereas cortisol was significantly and positively related to Stress Effects. Increased coherence in heart rate variability patterns was measured in 80 percent of the experimental group during the use of the techniques. The results suggest that techniques designed to eliminate negative thought loops can have important positive effects on stress, emotions and key physiological systems. The implications are that relatively inexpensive interventions may dramatically and positively impact individuals’ health and well-being. Thus, individuals may have greater control over their minds, bodies and health than previously suspected.     

Empirical support for a Type A belief system

Much of the research on Type A behavior has focused on overt manifestations of the pattern; consequently, the underlying psychological dimensions are poorly understood (Matthews, 1982). Price (1982) has proposed an elaborate, but empirically unvalidated, model suggesting that a specific set of beliefs underlies the Type A behavior pattern. A series of experiments was conducted to test the validity of Price's model and to develop a device for assessing these beliefs. The internal consistency and test-retest reliability of this measure were .94 and .84, respectively. Significant positive correlations were found with traditional measures of Type A behavior as well as various facets of anger and anxiety. Finally, subjects who endorsed a high degree of Type A beliefs set significantly higher performance standards and were less likely to achieve these standards than their low-scoring counterparts. Results are discussed with regard to the theoretical construct of Type A as well as their implications for future research and treatment.This research is an extension of a study presented at the 92nd meeting of the American Psychological Association, Toronto, Canada, August 1984Special thanks to to Drs. James A. Blumenthal, Martin T. Gipson, Abby C. King, and Ellie T. Sturgis for their helpful comments in the preparation of this article.     

Minority influence and social categorization: A replication

The effects of ingroup and outgroup minorities upon public and private levels of influence was examined. The results show that whilst ingroup minorities have greater influence in public, outgroup minorities can have as much, if not more influence than ingroup minorities when responses are made in private. These results are consistent with previous research and support the social identijkation model of social influence.     

Task complexity and age differences in working memory

This study investigated age-related differences in working memory using a modified version of the Daneman and Carpenter (1980) working memory task. The subjects were required to verify a series of sentences, and then at the end of each series recall the final word of each sentence. Each series varied in length from one to five sentences. Performance on this task was compared with performance in a word-alone condition, in which the subject had to remember an equivalent list of single words but without sentence verification. When sentences of positive grammatical form were used in the sentence-span condition, age differences were no greater than in the word alone condition; however, the age decrement increased when sentences of negative grammatical form were used. There were no interactions between age and pacing or between age and the number of sentences in each set. These results are discussed in relation to theories of age differences in working memory.     

Early receptive and productive language skills in preterm and full-term 8-month-old infants

Early receptive and productive language skills were examined for preterm low birthweight infants and full-term normal birthweight infants from middle-class homes. Nineteen preterm infants and 19 full-term infants were observed in a laboratory setting at the gestationally corrected age of 8 months. To avoid the frequent confound between prematurity and low socioeconomic status, mothers of the two groups of infants were matched on educational levels. Regression analyses were used to assess the relative influence of infant cognitive skills, infant sociability, infant birth status, and the mothers' language input as possible predictors of infant receptive language and vocal behavior. Receptive language skills were associated with higher cognitive performance, greater sociability, and preterm birth. Productive language skills were associated with higher cognitive performance. On the basis of this research, the prognosis for language development in preterm infants raised in middle-class homes appears to be excellent.This research was aided by Social and Behavioral Sciences Research grant No. 12-11 from the March of Dimes Birth Defects Foundation and supported by DHHS Grant HD03352. Computing was provided by the Waisman Center Computing Facility at the University of Wisconsin-Madison. Donna Boylan, Sue DaPra, Maria Kleczewski, Michal Rubin, Susan Silverber, and Paula VanLaanan assisted with data collection.     

The role of callosal connections in speech prosody

A 39-year-old right-handed woman suffered an aneurysmal hemorrhage damaging the anterior four-fifths of the corpus callosum as shown on MRI. Computer-aided acoustical analyses of fundamental frequency (Fo) contours and durational patterns were performed on emotive and nonemotive utterances at 4 weeks, 4 months, and 1 year postsurgery. The patient read sentences in each of five tones (happy, sad, angry, neutral, questioning) or with emphasis on certain words. She showed little Fo distinction with intended mood at 4 weeks, but her performance improved over time. This improvement in speech production was accompanied by an improvement in perceptual judgments of her intended tone by six normal listeners. Fo patterns characteristic of emphatic stress and question forms were found at all test periods, but again improved with time. Durationally, the patient showed appropriate emotive and nonemotive distinctions on most sentences. These results provide acoustic evidence that interhemispheric connections via the corpus callosum are important to proper Fo programming, especially emotive distinctions. The results suggest that the right hemisphere contributes to Fo programming but, following callosal damage, such programming can later be performed by the left hemisphere.     

Factor dimensions across different measures of sex role ideology

The development of sex role ideology is an important part of the maturation process. Numerous means have been used to measure sex role ideology. The purpose of this study was to investigate the dimensionality of the construct of sex role ideology. Participants, 180 undergraduate volunteers, completed four multiitem measures of sex role ideology, a social desirability scale, and three single-item questions previously used to assess sex role ideology. Scale internal consistency estimates, correlation coefficients, and a factor analysis were computed. Results of the study suggested that the construct of sex role ideology is unidimensional.     

A pool of 1,086 words with unique two-letter fragments

Cognitive psychology is finding increasing use for the word fragment completion test, in which words have to be completed from a subset of their letters (e.g.,horizon from --r-z--). Researchers often try to restrict their fragments to those that can be completed with only one word, but this is difficult to do and probably never has been achieved. To help resolve this problem, a list is provided of 1,086 three- to eight-letter words, each of which is uniquely specified by a two-letter fragment, where uniqueness is defined on the basis of two sizable word collections.