Effekte eines Tanz- und eines Gesundheitssporttrainings auf die graue Hirnsubstanz gesunder Senioren

Due to the demographic change and an aging society more research is nowadays dedicated to geriatric problems and questions. Aging is associated with a loss of grey matter volume in the brain and often leads to neurodegenerative diseases. Physical and cognitive activities have been shown to improve brain plasticity whereby the combination of both seems to be most effective. We hypothesized that dancing could be an ideal intervention because it combines exercise, cognitive, coordination and emotional features. In this study 26 healthy senior citizens (63–80 years old) were randomized into a dancing group (n = 14) or a physical exercise group (n = 12). After 18 months the dancing group showed increased grey matter volumes, especially in the frontal and temporal regions including the gyrus parahippocampalis and the precentral gyrus. The physical exercise group showed grey matter volume increases only in subcortical regions. Our results suggest that dancing is more effective in inducing neuroplasticity in regions normally affected by aging than classical repetitive fitness training. We assume this to be related to the multimodal nature of dancing, which combines exercise, cognitive and coordination features. These findings demonstrate for the first time in a longitudinal study the positive effects of dancing programs for the prevention of volume loss of grey matter and neurodegenerative diseases in the elderly.     

Captions, consistency, creativity, and the consensual assessment technique: New evidence of reliability

The consensual assessment technique (CAT) is a measurement tool for creativity research in which appropriate experts evaluate creative products [Amabile, T. M. (1996). Creativity in context: Update to the social psychology of creativity. Boulder, CO: Westview]. However, the CAT is hampered by the time-consuming nature of the products (asking participants to write stories or draw pictures) and the ratings (getting appropriate experts). This study examined the reliability of ratings of sentence captions. Specifically, four raters evaluated 12 captions written by 81 undergraduates. The purpose of the study was to see whether the CAT could provide reliable ratings of captions across raters and across multiple captions and, if so, how many such captions would be required to generate reliable scores, and how many judges would be needed? Using generalizability theory, we found that captions appear to be a useful way of measuring creativity with a reasonable level of reliability in the frame of CAT.     

Developmental Relations Among Behavioral Inhibition,Anxiety, and Attention Biases to Threat and Positive Information

This study examined relations between behavioral inhibition (BI) assessed in toddlerhood (n = 268) and attention biases (AB) to threat and positive faces and maternal‐reported anxiety assessed when children were 5‐ and 7‐year‐old. Results revealed that BI predicted anxiety at age 7 in children with AB toward threat, away from positive, or with no bias, at age 7; BI did not predict anxiety for children displaying AB away from threat or toward positive. Five‐year AB did not moderate the link between BI and 7‐year anxiety. No direct association between AB and BI or anxiety was detected; moreover, children did not show stable AB across development. These findings extend our understanding of the developmental links among BI, AB, and anxiety.     

Ratings of perceived exertion of ACSM exercise guidelines in individuals varying in aerobic fitness

The physiological responses of high (HF) and low fit (LF) individuals at given perceived exercise intensities were compared to ranges provided by the American College of Sports Medicine (ACSM). Participants were 7 LFand 8 HF men between the ages of 22 and 26 years. All participants performed a maximum oxygen uptake and lactate threshold test and two 15-min experimental runs in which they exercised at a constant perceived exercise intensity (RPE 13 and 17). The LF group exhibited significantly greater maximum oxygen uptake reserve ( % VO2R, p < .05) and velocity of lactate threshold (p < .01) values than HF at RPE 13 and 17. Both groups had significantly greater % VO2R and maximum heart rate values at RPE 13 in comparison with the ACSM ranges, using the highest value for the given range (p < or = .001).     

Problems and Prospects of Implementing a Holistic Planning Framework in Vocational Education: Applications of the Organizational Elements Model

This study examines types of indicators which can be used to determine societal impact and how these indicators can be applied by an agency to provide useful information to its program planners. Using the Organizational Elements Model as a framework for the study, this project sought to define what data should be collected by the Florida Division of Vocational, Adult, and Community Education to indicate the societal impact of vocational programs.     

Toward a “Hard” Metric for Educational Utility

Education is far too costly an enterprise to operate without precise indicators of the successes and consequences of educational interventions. Unfortunately, many educational economists and educators have resisted measuring the societal impacts of educational programs, options, and interventions because a reliable and valid metric did not exist for those consequences. This article explores alternatives to the metrics utilized thus far in measuring the individually oriented “preferences” used in the conceptualization of utility, and argues that a “hard” metric which would either monetize or impute monetary values for both individual and social outcomes is both possible and useful. A hard metric is one that is independently verifiable based upon values attributed to results. While any such metric will be both imperfect and controversial, we suggest that it is more desirable to attempt its development than to take the greater risk of pretending that one is not possible. Three alternative (and related) types of educational results are suggested: products, outputs, and outcomes. Possible results-oriented indicators for each are suggested. These will serve as a basis for developing a useful hard metric for educational utility.