Biomedical subjects

J M Wilding

Publications and source records attributed to J M Wilding.

10 recordsLinked to original sources

PubMed1993

Decision-making style, driving style, and self-reported involvement in road traffic accidents.

In an exploratory postal survey of 711 drivers stratified by age, sex, annual mileage, and accident involvement, decision-making style was measured using a Decision-Making Questionnaire (DMQ) and driving style was assessed using a Driving Style Questionnaire (DSQ). Responses to 21 items of the DMQ formed seven independent and internally coherent dimensions according to a principal components (PC) analysis. These were labelled: control, thoroughness, instinctiveness, social resistance, hesitancy, perfectionism, and idealism. PC analysis also revealed that responses to 15 items of the DSQ formed six independent dimensions of driving style. These were labelled: speed, calmness, social resistance, focus, planning, and deviance. Multiple regression analysis indicated that drivers of 60 years and under who scored lower on thoroughness were at greater risk of a traffic accident and that this relationship was mediated by faster driving. This relationship was independent of age, sex, annual mileage and all other factors measured. In the drivers over 60 years, lower thoroughness, greater hesitancy, and faster driving were independently associated with higher accident rates independent of all other factors measured. The results provide preliminary support for the view that people import aspects of their general decision-making style into the driving situation, and that in so doing they put themselves at differential risk of having a road traffic accident.

Accidents, Traffic↗

PubMed1991

Performance and state changes during the menstrual cycle, conceptualised within a broad band testing framework.

Using a broad band testing framework, indices of performance and state were examined in 10 women during one menstrual cycle, over six separate testing sessions. Indices of state were heart rate, the Cruickshank self-report questionnaire and time to basal skin potential. Results showed that self reported arousal was increased premenstrually. There was dissociation between indices of state, supporting the contention that simple models of arousal are inadequate. Performance tests of cognitive processing, tracking skill, reaction time and vigilance, dual task, speed and accuracy, and short term memory capacity showed only one significant result: semantic processing on a word matching task improved premenstrually. There was no significant relationship between state and performance: with high individual differences found between subjects. It was concluded that menstruation was not acting as a stressor for these subjects, and that there was no evidence for a decrement in performance in the menstrual or premenstrual phases of the cycle. Results are discussed in terms of coping with perceived increase in demand premenstrually, resulting in utilisation of compensatory effort and it is suggested that future work should examine womens ability to cope with perceived increase in demand and attribution of arousal during the menstrual cycle. The implications of the findings in terms of the critique of PMS as a valid construct are discussed, and it is concluded that future work should be carried out within an integrated multi-variate framework.

Adult↗

PubMed1977

Effects of high intensity white noise on short-term memory for position in a list and sequence.

Seven experiments are described investigating the effect of high intensity white noise during the visual presentation of words on a number of short-term memory tasks. The findings were: 1. In a free recall task recall of items decreased at the highest intensity used (85 dB) compared with a quiet and a 75 dB condition. 2. In free recall, recall by category decreased and recall in the original sequence increased in the 75 dB compared with the other two conditions. 3. Recall of the position of words in the list increased as noise intensity increased, but only when the learning of position was incidental, not when it was intentional. It is inferred that the effect is due to direction of attention or change in the learning strategy. 4. Recall of the original sequence (as shown by the ability to give in response to a word from a list the word which had followed it in the original list) was superior in the 75 dB compared with the other two conditions, but only when recall of the second word was required, not when it had to be recognized among all the items from the original list. It is argued that this can be explained if noise intensity affects the strength of traces and hence the interconnexions established between them, on which retrieval depends. The results for position learning are compatible with the theories of Hockey & Hamilton (1970) or Dornic (1973), but the results for sequence learning cannot be explained by either of these theories. A final experiment confirmed a prediction from the above theory that when recalling the original sequence, omissions (recalling no word) will decrease and transpositions (giving the wrong word) will increase as noise level increases.

Acoustic Stimulation↗

PubMed1977