Womanist Identity and Mental Health

The authors explored the relationship between Helms's “womanist identity” attitudes and the mental health of Black and White women. Results showed that Black and White women have different patterns of responses to both womanist and mental health scales. For White women in the sample, Immersion-Emersion and, to a lesser extent, Encounter attitudes were related to 7 types of psychological symptomatology. For Black women, no such relationship between womanist attitudes and mental health was found.     

Heart rate during group flooding therapy for PTSD

The objective of this study was to assess, via heart rate, the arousal levels of participants in group trauma reexposure therapy for posttraumatic stress disorder, and so to better understand this common mode of treatment, particularly in regards to its presumed curative factor, extinction. Six Vietnam combat-related PTSD inpatients participated twice weekly in group trauma reexposure therapy during which their electrocardiograms were recorded. Heart rate was quantified continuously off-line. Heart rates of participantsnot directly engaged in imaginal reexposure to their personal combat traumas consistently exhibited mild linear declines from the beginnings to the ends of the approximately 2.5 hour sessions. Participants actively engaged in personal combat trauma reexposure exhibited higher whole-session heart rates. Most also exhibited more specific elevation extending over the later portions of therapy sessions during which intensive reexposure usually occurred. Surprisingly, no patients exhibitedfocal increases in heart rate concurrent with periods of most intensive traumatic incident review as judged from videotape. Administering imaginal reexposure in a group context does not preclude substantial physiological (sympathetic) arousal, as is preconditional for extinction. Under conditions in which the actively engaged reexposure patient is reliably identified, group trauma reexposure therapy may not provide an opportunity for “vicarious” flooding in nonengaged participants.     

Evaluating the effectiveness of workshop interventions on contraceptive use among first-year college students

This study tested the effectiveness of 4 interventions designed to affect contraceptive knowledge, attitudes, and use among first-year Syracuse University students in New York State in the US. Pre- and post-tests obtained data on demographic characteristics, sexual behavior, contraceptive knowledge, sexual opinions, contraceptive attitudes, and contraceptive progress on a 5-step scale. Group 1 (79 students) received contraceptive information (CI) only. Group 2 (76) received CI and a cognitively oriented intervention. Group 3 (73) received CI and an experience-oriented intervention. Group 4 (77) received a combined cognitively and experience-oriented intervention with CI. The control group included 57 people. 78% on the pretest, and 84% on the post-test, had engaged in sexual intercourse for the first time in high school. 200 indicated previous intercourse in the past 3 months. Groups varied significantly in their knowledge, beliefs, and practices. All groups had greater contraceptive knowledge than control groups. Greater behavior beliefs about contraceptive use occurred in Groups 1 and 2. Groups 3 and 4 showed greater increases in positive attitudes toward use. All intervention students showed greater increases in positive attitudes toward a contraceptive process. Greater increases in the intention to use birth control occurred in Groups 3 and 4. Groups 2, 3, and 4 showed greater increases in reported use of birth control. Group 4 intervention was the most effective for males. Females were influenced by all interventions. Findings affirm the importance of including attitudinal components in sexuality and contraception workshops.     

Infanticide and the Right to Life

Michael Tooley defends infanticide by analysing ' A has a right to X' as roughly synonymous with 'If A desires X , then others are under a prima facie obligation to refrain from actions that would deprive him [or her] of it.' An infant who cannot conceive of himself or herself as a continuing subject of experiences cannot desire to continue existing. Hence, on Tooley's analysis, killing the infant is not impermissible, for it does not go against any of the infant's desires. However, Tooley's argument in support of his analysis seems to justify, instead, a slightly more subtle analysis—namely, ' A has a right to X ' is roughly extensionally equivalent with 'Unless A expresses his or her desire that not- X , then others are under a prima facie obligation to refrain from actions that would deprive him or her of X .' But given this analysis, the infant's purported lack of any capacity to conceive of himself or herself as a continuing subject of experiences implies that we cannot be released from any duty that we might have not to harm him or her. In short, Tooley's argument in support of his analysis actually implies that infanticide may well be impermissible.     

Environmental stress and blood glucose change in insulin-dependent diabetes mellitus

Blood glucose (BG) response to psychological stress in insulin-dependent diabetes mellitus (IDDM) patients has not been firmly established. We report a study designed to address the gaps and methodological difficulties reviewed. Subjects with IDDM were exposed to two sessions (12 weeks apart) of two 20-min standardized stressors (active and passive) and a control condition administered in counterbalanced order. To measure BG response, subjects were connected to a glucose/insulin infusion system providing continuous BG measurement. Mood checklist measures were obtained at prestressor, poststressor, and recovery periods. During the first session of testing, the active stressor was associated with significantly more absolute change in BG response than the passive stressor. Results also indicate that IDDM subjects' BG response to this active stressor was idiosyncratic but significantly reliable over time.     

Algorithms for processing spatial information

Pairs of stimuli taken from a psychometric measure of spatial aptitude were shown to 9-year-olds, 13-year-olds, and adults. The stimuli in pairs were (a) either identical or mirror images, and (b) presented in orientations that differed by 0-150 degrees. Individuals judged, as rapidly as possible, if the stimuli in a pair would be identical or mirror images if presented at the same orientation. In Experiment 1, in which the stimuli were letter-like characters, at all ages most persons solved the problems using an algorithm in which an individual encodes the stimuli in working memory, mentally rotates one stimulus to the orientation of the other, compares them to determine if they are identical, and responds. In Experiment 2, the stimuli were multielement flags; here, the modal algorithm for both 9- and 13-year-olds differed from the previously described algorithm in that if the comparison process revealed that the stimuli were dissimilar, individuals did not respond immediately, but continued processing until a self-imposed deadline was reached. Among adults, the modal algorithm was the same one used in Experiment 1. Results are discussed in terms of the roles of encoding in contributing to the use of a particular algorithm.     

The effects of vicarious experience on pain termination and work avoidance: a replication

Clinical research suggests that vicarious experience plays an important role in the development of pain behavior but only one experimental study has shown that prior exposure to a model's reaction to a pain stimulus affects a subject's subsequent reaction to that stimulus. The purpose of the present investigation was to replicate this experimental study. Twenty-two experimental subjects viewed a film of a model in pain who either terminated a work task quickly (high-avoidant) or not quickly (low-avoidant). Subjects then performed the same work task while exposed to the same pain stimulus. The results indicated that subjects exposed to the high-avoidant model tolerated the pain stimulus for significantly fewer seconds and did significantly less work compared to the low-avoidant model subjects. As predicted, no group differences were observed on work speed or work accuracy. The results provide further evidence for the role of vicarious processes in the development of reactions to painful stimuli.     

Explicit syllable and phoneme segmentation in the young child

To write a language, one must first abstract the unit to be used from the acoustic stream of speech. Writing systems based on the meaningless units, syllables and phonemes, were late developments in the history of written language. The alphabetic system, which requires abstraction of the phonemic unit of speech, was the last to appear, evolved from a syllabary and, unlike the other systems, was apparently invented only once. It might therefore be supposed that phoneme segmentation is particularly difficult and more difficult, indeed, than syllable segmentation. Speech research suggests reasons why this may be so. The present study provides direct evidence of a similar developmental ordering of syllable and phoneme segmentation abilities in the young child. By means of a task which required preschool, kindergarten, and first-grade children to tap out the number of segments in spoken utterances, it was found that, though ability in both syllable and phoneme segmentation increased with grade level, analysis into phonemes was significantly harder and perfected later than analysis into syllables. The relative difficulties of the different units of segmentation are discussed in relation to reading acquisition.     

Seeing with the skin

A system for converting an optical image into a tactile display has been evaluated to see what promise it has as a visual substitution system. After surprisingly little training, Ss are able to recognize common objects and to describe their arrangement in three-dimensional space. When given control of the sensing and imaging device, a television camera, Ss quickly achieve external subjective localization of the percepts. Limitations of the system thus far appear to be more a function of display resolution than limitations of the skin as a receptor surface. The acquisition of skill with the device has been remarkably similar for blind and sighted Ss.     

On the partitioning of squared Euclidean distance and its applications in cluster analysis

The partitioning of squared Eucliean distance between two vectors in M-dimensional space into the sum of squared lengths of vectors in mutually orthogonal subspaces is discussed and applications given to specific cluster analysis problems. Examples of how the partitioning idea can be used to help describe and interpret derived clusters, derive similarity measures for use in cluster analysis, and to design Monte Carlo studies with carefully specified types and magnitudes of differences between the underlying population mean vectors are presented. Most of the example applications presented in this paper involve the clustering of longitudinal data, but their use in cluster analysis need not be limited to this arena.