Head-putter coordination patterns in expert and less skilled golfers

The authors examined the patterns of expert and less skilled golfers in putting on an indoor surface to 1 of 3 circular targets (1, 3, and 5 m away) in trials with a ball present (and putted) or not present (a practice stroke). As expected, the experts performed better than the less skilled golfers on a large number of outcome and kinematic measures. Displacement and velocity profiles of the head and putter revealed high positive correlations for the less skilled golfers, indicating a dominant allocentric coordination pattern, but high negative correlations for the expert golfers, indicating a dominant egocentric coordination pattern. The observed coordination patterns did not interact with the distance of the intended putt or the presence/absence of a ball. These findings offer preliminary evidence that, although contrary to traditional beliefs, fundamental differences exist in putting coordination modes between expert and less skilled golfers.     

Social representations and intergroup conflicts: Who's smoking here?

We studied the influence of explicitating a social conflict between smokers and nonsmokers on the social representations held about tobacco. Two representations were found: a psychological' representation which was defined by psychological explanations of the causes of beginning to smoke, a characterization of smokers as psychologically disturbed, and negative feelings towards smokers; a second defensive representation which attributes smoking to social factors, and hold both a positive stereotype of smokers and positive feelings towards smokers. The percentage of smokers who adhere to the defensive representation increased significantly when the conflict was made salient. Non-smokers were not influenced by the explicitation of the social conflict. The structure of each representation was analyzed. It was found that in the psychological' representation the structuring element was the negative stereotype of smokers. By contrast, the structuring element in the defensive representation was identification with smokers. The implicatlons of this data for theories of both intergroup relations and social representations are discussed.     

A cross-cultural comparison of the developmental items of five ethnic groups in the southwest

A population of 3,067 Mexican-American, Pueblo Indian, Navajo Indian, Black, and Anglo elementary children were administered the Draw-A-Person for norming and comparison against the existing Koppitz scoring procedure. A significant number of items for each of the five ethnic groups changed categories with final score interpretation affected. A significant difference in percentage of items drawn by the five ethnic groups was also found, as were regional differences on certain items.     

The Narcissistic Injury and Psychopathology of Migration: The Case of a Nicaraguan Man

Cultural and ethnic issues commonly surface as important therapeutic themes among many minority patients. Identity formation, self-concept, perception, and the effects of migration on the aetiology of psychiatric symptomatology are reviewed. Trauma resulting from migration, stress, and prolonged affect-laden situations in the precipitation and onset of physical disease and illness is discussed. A clinical presentation of a 68-year-old Nicaraguan man is presented to highlight the aforementioned issues, i.e., traumatization, the development of psychopathology, and the onset of physical illness as a result of forced migration.     

Training of conversational skills with institutionalized elderly: a preliminary study

16 residents in a Residential Care Home for elderly people volunteered and were trained in a social skills program aimed at increasing conversational skills. Subjects were assigned randomly to three groups, one experimental and two control groups (placebo and waiting list). The techniques used in the experimental group were behavior rehearsal, feedback, modeling, discriminative reinforcement, verbal instructions, and homework. Relative to control groups, experimental subjects showed significant increases in conversational skills, such as receiving information, speaking-up, and giving information. They also showed a significant decrease in their scores on Zung's Self-rating Scale of Depression compared with the two control groups. They showed an increase in assertive responses and a decrease in aggressive and inhibited responses. These changes remained when follow-up was made 3 mo. later, suggesting the potential utility of this training program with elderly persons residing in old people's homes.     

Association between dyads and correct responses on the Paced Auditory Serial Addition Task (PASAT)

The sensitivity of the Paced Auditory Serial Addition Task (PASAT) to working memory deficits may be enhanced by examining "dyads" (i.e., correct responses immediately preceded by a correct response) as a complement to the traditional total correct summary score. In a sample of 397 mostly African American (79%) healthy adults, total dyad and total correct scores were highly correlated (r = .96, p < .001); however, the magnitude of this association diminished in faster stimulus presentation trials, particularly among participants with impaired working memory abilities.     

A cognitive approach to game usability and design: mental model development in novice real-time strategy gamers.

We developed a technique to observe and characterize a novice real-time-strategy (RTS) player's mental model as it shifts with experience. We then tested this technique using an off-the-shelf RTS game, EA Games Generals. Norman defined mental models as, "an internal representation of a target system that provides predictive and explanatory power to the operator." In the case of RTS games, the operator is the player and the target system is expressed by the relationships within the game. We studied five novice participants in laboratory-controlled conditions playing a RTS game. They played Command and Conquer Generals for 2 h per day over the course of 5 days. A mental model analysis was generated using player dissimilarity-ratings of the game's artificial intelligence (AI) agents analyzed using multidimensional scaling (MDS) statistical methods. We hypothesized that novices would begin with an impoverished model based on the visible physical characteristics of the game system. As they gained experience and insight, their mental models would shift and accommodate the functional characteristics of the AI agents. We found that all five of the novice participants began with the predicted physical-based mental model. However, while their models did qualitatively shift with experience, they did not necessarily change to the predicted functional-based model. This research presents an opportunity for the design of games that are guided by shifts in a player's mental model as opposed to the typical progression through successive performance levels.     

Forecasting one's future based on fleeting subjective experiences

When we forecast our futures, to what extent do we rely on explicit and concrete facts versus implicit and fleeting subjective experiences? Results from two studies reveal that forecasting judgments hinge on at least two fleeting experiences: the specific incidental emotions one happens to feel at the time of forming a judgment and the subjective ease-of-thought-generation. Results also reveal that imposing accountability for the accuracy of one's forecast provides no simple remedy. Incidental emotions, the ease-of-thought-generation, and accountability combine multiplicatively in a three-way interaction. Although accountability attenuates the respective effects of incidental fear and incidental anger, doing so has the undesirable effect of amplifying the ease-of-thought-generation effects that fear otherwise suppresses. In no instance does accountability completely eliminate the unintended effects of these fleeting subjective experiences. Discussion addresses implications for theories of affect and social cognition as well as for applications to risk perception.