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Biomedical subjects

B Hesketh

Publications and source records attributed to B Hesketh.

4 recordsLinked to original sources

Learning from errors in a driving simulation: effects on driving skill and self-confidence.

Two experiments investigated the effect of making errors during training (error training) on a driving simulator versus learning from examples of errors (guided error training) on driving skill and confidence. Experiment 1 indicated that compared with errorless learning (where participants drove through a training run not designed to elicit errors), error training led to significantly better transfer to driving tests that were analogous to those situations encountered in training and more effective use of strategies for coping with a novel driving situation. Error training also reduced self-confidence in driving skill at the end of training relative to errorless learning. Experiment 2 provided weak evidence of the superiority of guided error training over errorless learning (where the driver in the video did not make any errors) on analogous tests, and no evidence of transfer to a novel test. Furthermore, guided error training did not influence self-confidence in driving skill. The potential value of driving simulators in providing active processing during driver training is discussed, along with the effects of passive and active exposure to errors on driver confidence.

Adult↗

Instance-based categorization: automatic versus intentional forms of retrieval.

Two experiments are reported which attempt to disentangle the relative contribution of intentional and automatic forms of retrieval to instance-based categorization. A financial decision-making task was used in which subjects had to decide whether a bank would approve loans for a series of applicants. Experiment 1 found that categorization was sensitive to instance-specific knowledge, even when subjects had practiced using a simple rule. L. L. Jacoby's (1991) process-dissociation procedure was adapted for use in Experiment 2 to infer the relative contribution of intentional and automatic retrieval processes to categorization decisions. The results provided (1) strong evidence that intentional retrieval processes influence categorization, and (2) some preliminary evidence suggesting that automatic retrieval processes may also contribute to categorization decisions.

Adult↗

Time perception: effects of task speed and delay.

The study examined the effect of task speed and delay on the perception of time. 60 subjects were randomly allocated to four groups in a 2 x 2 design. The first factor related to the speed of the task (fast or slow) undertaken during the time to be estimated, while the second factor related to when time estimates were obtained (immediately after the task versus following a delay). Analysis supported the hypothesised interaction, with time estimates being shorter in the fast than in the slow condition when obtained immediately after the task but longer in the fast than the slow condition when obtained after a delay. Results are discussed in relation to cognitive theories of time perception.

Adolescent↗

Changing horses in mid-stream: job and life satisfactions for veterinarians.

The differential nature of job activities related to four areas of veterinary work, club or private practice, industry or commerce, Animal Health and Meat Divisions of the Ministry of Agriculture and Fisheries, were investigated using a ten factor rating scale. The same scale was used to measure these veterinarians; non-job activities. Significant differences were found in average levels of job satisfaction. Meat Division veterinarians, for example, rated their jobs as offering little discretion or control over what, when and how they do things, lacking variety in activities, requiring less mental effort and giving them little control over the speed at which they work. These veterinarians also had the lowest level of job satisfaction. Non-job activities are seen to compensate for non-satisfactory aspects of a job, and levels of life satisfaction among veterinarians was not related to being in a specific area of practice. Certain job and non-job activities, however, are related to the degree of mental well-being in a veterinarian.

Journal Article↗