End state copying by humans (Homo sapiens): implications for a comparative perspective on cumulative culture

It has been proposed that the uniqueness of human cumulative culture may be attributable to humans' greater orientation toward copying the process of behavior (imitation), as compared with the products (emulation), resulting in particularly high fidelity transmission. Following from previous work indicating that adult human participants can exhibit cumulative learning on the basis of product copying alone, we now investigate whether such learning involves high fidelity transmission. Eighty adult human (Homo sapiens) participants were presented with a task previously shown to elicit cumulative learning under experimental conditions, which involved building a tower from spaghetti and modeling clay. Each participant was shown two completed towers, ostensibly built by previous participants, but actually built to prespecified designs by the experimenter. This end state information was provided either in the form of photographs, or the presence of actual towers. High fidelity matching to these end states was apparent in both demonstration conditions, even for a design that was demonstrably suboptimal with regard to the goal of the task (maximizing tower height). We conclude that, although high fidelity transmission is likely to be implicated in cumulative culture, action copying is not always necessary for this to occur. Furthermore, since chimpanzees apparently copy behavioral processes and well as products, and also transmit behavior with high fidelity, the stark absence of unequivocal examples of cumulative culture in nonhumans may be attributable to factors other than imitative ability.     

Perceived Versus Predicted Risks of Colorectal Cancer and Self-Reported Colonoscopies by Members of Mismatch Repair Gene Mutation-Carrying Families Who Have Declined Genetic Testing

People carrying germline mutations in mismatch repair genes are at high risk of colorectal cancer (CRC), yet about half of people from mutation-carrying families decline genetic counselling and/or testing to identify mutation status. We studied the association of quantitative measures of risk perception, risk prediction and self-reported screening colonoscopy in this elusive yet high-risk group. The sample of 26 participants (mean age 43.1 years, 14 women) in the Australasian Colorectal Cancer Family Registry were relatives of mutation carriers; had not been diagnosed with any cancer at the time of recruitment and had declined an invitation to attend genetic counselling and/or testing. A structured elicitation protocol captured perceived CRC risk over the next 10 years. Self-reported colonoscopy screening was elicited during a 45-minute semi-structured interview. Predicted 10-year CRC risk based on age, gender, known mutation status and family history was calculated using “MMRpro.” Mean perceived 10-year risk of CRC was 31 % [95 % CI 21, 40], compared with mean predicted risk of 4 % [2, 7] (p?<?0.001); this was independent of age and sex (p?=?0.9). Among those reporting any medical advice and any screening colonoscopy (n?=?18), those with higher risk perception had less frequent colonoscopy (Pearson’s r?=?0.49 [0.02, 0.79]). People who decline genetic testing for CRC susceptibility mutations perceive themselves to be at substantially higher risk than they really are. Those with high perceived risk do not undertake screening colonoscopy more often than those who perceive themselves to be at average risk.     

from the common thug to the local businessman: an exploration into an urban african american barbershop

This ethnographic study investigates the social interactions that transpire in an urban African American barbershop, called Peanut's, located in a Southern city. The results of this study indicate that the urban African American barbershop has the potential to be a place where any number of activities can and do take place. Specifically, this study discovered three levels of the underground economy (i.e., legal, quasi-legal, and illegal) with each level reflecting a different degree of criminal potential.     

Measurements of Muscular Strength,Endurance, and Recovery Over Fifteen Successive Days

Muscular output was measured in terms of strength, endurance, impulse, and recovery, with 10 Ss, 4 times per day over 15 successive days. A general index (the mean percentage of baseline performance with all measures) indicated that performance generally improved over the first 5 or 6 days, and remained relatively stable thereafter. The measures of strength were sensitive to within-day effects, whereas endurance and recovery measures were not influenced by such circadian rhythms.     

P. A. News & Notes

A case study of a Vietnam combat veteran with episodic rage attacks is discussed with emphasis on Rorschach formal scoring and content analysis. Rorschach data suggest a near neurotic level of ego organization with massive repression in the form of dissociated violent outbursts. Vietnam combat trauma appears to be a precipitant. Developmental differences between preoedipal splitting and higher level dissociation are discussed. Dissociative states are posited to represent a developmental level of ego organization midway between borderline and neurotic levels and are not easily encompassed by either borderline or neurotic classifications.     

An Utility Based Framework for Evaluating the Financial Impact of Sales Force Training Programs

Limited attention has been devoted to the financial evaluation of sales training programs. In response to this shortcoming, this research proposes a sales training evaluation framework that integrates economic utility theory with Kirkpatrick's (1959a, 1959b, 1960a, 1960b) four-level training evaluation model. The proposed utility theory framework is tested using data derived from a sales training program conducted in Egypt. After performing the economic evaluation, sensitivity analysis is employed to demonstrate the financial trends of varying key training program variables. The paper concludes with discussions of theoretical and managerial implications, research limitations, and recommendations for future research.     

Role of Psychologists in Academic Medicine

With an interdisciplinary approach to understanding human psychosocial development and behavior, psychologists in academic medical settings have much to offer in the areas of administration, research, teaching, and service, including in the realm of organizational systems and behavior within medical schools. In these ways, psychologists can play a large role in the fulfillment of the mission of academic medicine and enhance psychology’s stature in the medical school organization. Two case studies are presented that exemplify the varied roles and responsibilities of psychologists in a medical school. To be successful within medical schools, the following generalizable principles are offered: (1) “add value” to the medical school by demonstrating the diverse and relatively unique abilities of psychologists; (2) be flexible and adaptive to the different requirements of medical academic settings; (3) make a concerted effort to work well with medical students, residents, and physicians who may not be well-versed in certain aspects such as rigorous research methodology and statistics; and (4) find a “good match” between one’s strengths, the needs of the medical setting, and the attributes of the M.D. leader. With such an approach, remarkable accomplishments can be made.