Previous research demonstrates a marked increase in the occurrence of depression during adolescence, particularly for females. Research has found that this phenomenon is associated with the development of beliefs about the self, world, and future (known as the cognitive triad), which constitutes a potential cognitive vulnerability to depression. Research has also demonstrated that family characteristics, such as cohesion, communication, conflict, social/recreational activity, negative life events, and maternal depression are all related to depression and the development of a negative cognitive style. The purpose of the current study was to build upon previous literature on negative life events, family and cognitive correlates of depression in youth, and analyze specific cognitive-interpersonal pathways to depression for girls transitioning from childhood to adolescence. 194 girls ranging in age from 8 to 14 participated in the study, along with their mothers. Participants completed self-report measures of family environment, beliefs about the self, world, and future, and negative life events. Mothers completed a self-report measure of psychopathology. Participants also completed a diagnostic interview, which served as the primary measure of depressive symptoms. As found in similar studies and consistent with Beck’s theory of depression, daughter’s reports of cognitive triad predicted the severity of her depressive symptom severity. Moreover, the cognitive triad was found to be the mediating variable in the model; family variables affected daughter’s beliefs, which then affected depressive symptom severity. Specifically, girls who endorsed higher family conflict and lower social/recreational activity reported a more negative cognitive triad and subsequently higher levels of depression. Additionally, negative life events significantly affected cognitive triad and indirectly affected depressive symptoms via cognitive triad. Also, the interaction of negative life events and cognitive triad significantly affected depression. Further results indicated that the self subscale of the cognitive triad is a particularly important factor in this model of depression. Contrary to what was expected, mother’s reports of depressive symptoms did not predict daughter’s cognitive triad or depressive symptoms. Implications of these results, limitations, and recommendations for future research are provided. / text

Narcissism and physical self-efficacy and exercise commitment were investigated in 'addicted' and 'non-addicted' runners (n = 112) and aerobics exercisers (n = 57) and compared to a control group of non-exercisers (n = 42). Runners and aerobics exercisers were assigned to an 'addicted' or 'non-addicted' group using Hailey and Bailey's (1982) Negative Addiction Scale. All subjects completed biographical questionnaires, the Narcissistic Personality Inventory (NPI) and the Physical Self-Efficacy Scale (PSE). Although both narcissism and physical self-efficacy were found to play a significant role in exercise adoption, narciss\ism was the only significant variable when comparing 'addicted' and 'non-addicted' exercisers. Differences between the runners and aerobics exercisers were found with the aerobics exercisers exhibiting higher narcissistic tendencies than the runners. The runners were assigned to one of four quadrants based on their level of commitment and addiction to running and the Perceived Physical Ability subscale of the PSE and the Self-Sufficiency subscale of the NPI produced significant differences between the four quadrants. Taken together, the results suggest that addicted exercisers have the tendency to exhibit narcissistic traits, however the interaction with physical self-efficacy is equivocal. The findings are discussed with reference to relevant personality theory and implications for future research in this area. / Thesis (M.A.)-University of Natal, Pietermaritzburg, 1997.

Research supports the notion that weapons impair eyewitnesses' memory for visual information (weapon focus effect). Pickel and Betts (1999) found that the presence of a weapon can also interfere with witnesses' memory for auditory information. The primary objective of the current study was to replicate Pickel and Betts's (1999) findings, to extend their findings by implementing different methodological procedures, and to control for a confound associated with their study. A secondary goal was to further investigate the impact that arousal and novelty have on the weapon focus effect. Participants watched a videotape depicting a story about a man stalking a woman. The man approached the woman holding either a switchblade knife or a black ballpoint pen. The man's conversation varied so that it was either easy or difficult to comprehend. Participants then completed questionnaires assessing their arousal level, memory for visual and auditory information, and perceived unusualness of the object carried by the target. [n addition, they attempted to identify the target in a photo and audio lineup. Results indicate that the presence of a weapon does not affect memory for vocal characteristics or for semantic content of speech when the content of the message is rather simple. As the complexity of the message increases, however, a weapon will interfere with witnesses' memory for the content. Also, results support the hypothesis that the weapon focus effect occurs because the weapon is perceived to be unusual and that increased levels of arousal are not necessary to obtain the effect. Analyses revealed no significant effects or interactions related to witnesses' ability to identify the man in the photo or audio lineup. The results supported Pickel and Betts's (1999) conclusions, thus increasing our knowledge concerning the reliability of eyewitness testimony. / Department of Psychological Science

Egalitarianism is highly valued in Canada and yet some groups are profoundly disadvantaged. This can be explained by sociological and psychological theorizing that claims advantaged group members are motivated to maintain a system of inequality from which they benefit. The challenge is to explain the few advantaged group members who defy self-interest and support disadvantaged groups. My research objectives were to understand what motivates selected advantaged group members to support disadvantaged groups, and to understand how the majority of advantaged group members maintain their belief in egalitarianism in the face of clear social inequality. Results revealed that most advantaged group members value egalitarianism highly, but only those who define egalitarianism in terms of social responsibility unequivocally support the interests of disadvantaged groups. Most advantaged group members conceive egalitarianism in terms of equality of opportunity, rights or treatment, allowing them to legitimize inequality; consequently, they are less willing to sympathize with the demands for fair treatment by disadvantaged group.

This study investigated the physiological and psychological limitations to prolonged work performed at different relative intensities, through the use of an eclectic integrative methodology. Ten young male caucasian subjects (mean V0₂ max. 60,0 ml.kg⁻¹.min⁻¹ ± 7,9) were randomly exposed to treadmill runs at each of four relative intensities, namely 55%, 65%, 75% and 85% of V0₂ maximum, with the instruction to run to the point of subjective discomfort at which they were no longer willing to continue. Physiological measures of oxygen consumption (V0₂), heart rate (HR), respiratory exchange ratio (R) , minute ventilation volume (Vi), breathing frequency (Vf), tidal volume (Vt) and psychological measures of Ratings of Perceived Exertion (RPE), Perceived Thermal Comfo·rt (PTC), Perceived Pain and Perceived Fatigue were recorded throughout the protocol. The relative intensity was held constant by slight decreases in treadmill speed as subjects fatigued, and through feedback from an on-line oxygen consumption computer-aided data acquisition system. Significant increases in both physiological and psychological measures occurred with increases in relative intensity (p<0,05). HR and Vf increased overtime (p<0,05) whilst Rand Vt decreased over time (p < 0,05) . All psychological ratings increased in intensity over time (p < 0,05). Mean endurance times to exhaustion were 243 minutes ± 70 at 55% relative intensity, 159 minutes ±37 at 65%, 96 minutes ±25 at 75 % and 23 minutes +- 8 at 85%, being within the range reported by earlier researchers . A regression equation for prediction of endurance time given a known relative intensity was developed for this sample: % V0₂ max. = 117,8 + (-10,6 x LN (time)) (where r = -0,91) Convergence rankings indicate the greater contribution of local factors in the overall gestalt of perceived exertion, pain and fatigue, with biomechanical limitations to prolonged work (running) strongly implicated . High inter correlations between psychological rating scales suggest the use of the scale considered most applicable to the task at hand and the psychological response measure required. A coefficient of multiple correlation of 0,94 established the close interrelationship amongst the physiological and psychological parameters measured. Pre- and post-test Fatigue Cluster Analysis questionnaires indicated that the most important clusters contributing toward the sensation of fatigue and subsequent decision to cease activity were Task Aversion and General Fatigue (r = 0,96), followed by Leg Fatigue and Thirst. Motivation, the task at hand and an attainable goal appear to be important considerations in prolonged work performance. Relative intensity appears a valid tool for use in prolonged work studies due to its high predictive capacity for endurance performance times (r=-0,91). It is concluded that workloads considerably below 55% of maximal aerobic capacity are indicated as acceptable workloads for an 8 hour working day.

M.Comm. (Industrial Psychology) / The current study investigated, by means of an experiment, the influence of nonconscious incidental haptic sensation, encountered when completing self-report questionnaires, on formal ratings of a consumer brand. In total, 178 university students (mean age = 19.82 years, males = 31.5%, females = 68.5%) participated in the study. Participants were allocated to one of two groups with Group 1 (n=88) completing a questionnaire printed on rigid paper while Group 2 (n=90) completed the same questionnaire printed on flimsy paper. The questionnaire scale was constructed using 28 sets of biploar pairs of adjectives related to the language association of rigidity and strength. An independent t-test revealed no differences between groups (t = 0.67, p = 0.50), but differences of distribution and polarisation of scores, evidenced by differences in kurtosis across groups (Group 1: kurtosis = 1.49, Group 2: kurtosis = 0.11), were apparent. In conclusion it appeared that a physically grounded mental framework, consistent with an embodied cognition approach to mental processes, had led to participants forming stronger product judgments when encountering an incidental, nonconscious, tactile experience of strength in a consumer context.

South Africa currently has one of the highest levels of crime in the world. The high prevalence of violence in South African culture has led to the increased exposure to violence of individuals of all ages. The South African Police Service annual report for 2008/2009 reported 48 732 crimes ranging from murder, attempted murder to sexual offences and common assault against children under the age of 18 years. In addition, young people between the ages from 12 to 22 are generally victimized at twice the adult rate and even higher for violent crimes. It is the belief of various theorists that exposure to violence can alter one’s cognitive, affective, and behavioral processes- the three core components that are essential to moral development. The role that exposure to violence has on the development of aggressive behavior has been thoroughly researched; however the implications that this exposure has on the moral development of adolescents remains vague. This study explored and described the relationship between exposure to violence and moral development amongst adolescent learners. A quantitative exploratory descriptive research design was employed and the participants were selected by means of non-probability, convenience sampling. The sample consisted of 53 participants at a coeducational high school in the Nelson Mandela Metropole. The demographic data of the participants was gathered through the administration of a biographical questionnaire. The participants’ exposure to violence was explored by using the Harvard Trauma Questionnaire- South African Adaptation (HTQ-SAA), while their moral development was assessed by means of the Moral Judgment Test (MJT). The data was analysed using descriptive statistics and both the Pearson’s correlation coefficient and Chi square test was computed to draw inferences regarding the relationship between exposure to violence and moral development. The results of the study revealed that all of the participants were exposed to violence directly or indirectly on one or more occasion; however the frequency with which the participants were exposed to violence was lower than expected. The results of the MJT further indicated very low to low moral judgement competence scores for the majority of the sample. No significant correlation or association was found between the two constructs.

No description available.

This is a study of some of the families in the Loma Linda University Medical Center infant heart transplant program.

Aging has long been associated with a (i) systematic bias in both attention and in memory towards positive stimuli compared with negative, and (ii) a gradual increase in self-reported positive affect and decrease in negative affect in daily life. The findings are considered to be paradoxical, because as people get older, the neural mechanisms responsible for cognitive functioning undergo gradual decline in structure and function. This dissertation aims to break down the mechanisms of aging that allow for the age-related changes in emotion to prevail in the midst of other ongoing aging processes. Here, I present three papers that address age-related changes in emotional experience. Study 1 showed that age predicted feeling more positive and less negative when faced with a pandemic that disproportionality impacted older adults. Study 2 showed that while younger adults are better than older adults at regulating negative images, all participants rely on similar brain regions for accomplishing the same regulatory goals. Study 3 showed that when given the explicit goal to up or down-regulate positivity, older adults do not have an advantage over younger adults. One way to explain these results is that there are age-related distinctions between the way participants behave in lab-based studies and when they are observed in daily life, which account for inconsistencies between my three studies.