Biomedical subjects
Publications and source records attributed to P D Slade.
Self-esteem/self-concept and aesthetics were measured in three groups. One group prior to orthodontic treatment, one group following completion of active orthodontic treatment and an untreated group. Improvement in dental and/or facial aesthetics does not necessarily lead to an increase in self esteem.
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This study was to test the validity of patients' opinions and provide a more accurate method than previously reported of assessing the specific psycho-social effects of orthognathic surgery. Questionnaires were used preoperatively and postoperatively providing a longitudinal sample, while those patients who only completed questionnaires either before or after surgery provided cross-sectional samples. Different questionnaires were used to provide data on a 'Body Satisfaction Scale', 'Fear of Negative Evaluation', 'Social Avoidance and Distress', and a 'General Health Questionnaire'. The results indicate that surgery produced an improvement in body image, particularly in the evaluation of facial attractiveness.
Experienced supervisors of trainee clinical psychologists used 24 scales to rate four concepts: 'your stereotype of a good trainee'; "a good trainee well known to you'; 'a bad trainee well known to you'; and 'your stereotype of a bad trainee'. Similar ratings were given for both the good trainee concepts, which were rated differently from both the bad concepts, which were also rated differently from each other. Factor analysis revealed that the supervisor's judgements fell across two interpretable dimensions.
This study aims to assess the dental status of anorexics and bulimics by comparison to age-matched controls. One hundred and eight individuals participated, of which 58 had an eating disorder. This group were further subdivided into bulimics who induced vomiting (33), bulimics who did not vomit (7), and anorexics (18). The caries experience (DMFS), plaque levels, gingival inflammation and buffering capacity of saliva were assessed and total vomiting episodes estimated from the product of vomiting frequency and duration. Statistical analysis (one way ANOVA) revealed no significant differences with most of the dental variables between the eating disorder groups and the controls. A linear association (Pearson correlation coefficient) between vomiting frequency, duration or total vomiting episodes and tooth wear was not found, although the frequency of pathological tooth wear is significantly high in the vomiting bulimic group, especially if the total number of vomiting episodes is greater than 1100.
The psychological well-being of forty-four breast cancer patients was assessed shortly before and after surgery, and at three and twelve months post-operatively. Regression analysis revealed type of treatment, control over treatment and concern for appearance as significant predictors of nature of subsequent mood state. Results are discussed with reference to the theoretical position that type of severe life event can predict the nature of ensuing psychological disorder.
Fourteen published scales of psychotic traits or symptoms (measuring various delusional states, magical ideation, perceptual aberration, disposition towards hallucination, hypomanic personality, schizotypal personality, borderline personality and anhedonia) were combined with the Eysenck Personality Questionnaire to form a Combined Schizotypal Traits Questionnaire (CSTQ) which was administered to 180 normal subjects. Two factor analyses were carried out on the scale scores. The first analysis excluded symptom scores derived from the Delusions Symptoms States Inventory of Foulds and Bedford and yielded a three-factor solution which appeared to measure traits relating to (i) positive psychotic symptomatology; (ii) negative psychotic symptomatology; and (iii) aspects of schizotypy involving social anxiety and cognitive disorganization. The Foulds scales were included in the second analysis which yielded a four-factor solution. The first three factors were similar to those obtained from the first analysis; the fourth factor seemed to measure an asocial component of schizotypy. This last factor was mainly accounted for by the P scale from the EPQ. These results support previous findings suggesting that different schizotypy scales relate to different underlying aspects of schizophrenia. The findings also indicate that psychotic traits are distributed along at least three dimensions.
This study is the first to make a direct comparison between the distorting mirror and the distorting videocamera with the same group of nonclinical subjects. It also establishes the internal consistency, the test-retest reliability and the convergent validity of both techniques. Analysis indicates, as with other studies, that perceived image is consistently over-estimated and ideal image is consistently under-estimated by both techniques. With the distorting mirror, the frontal orientation is repeatable over four days and with the video the profile is the more reliable orientation. A comparison between profile and frontal orientations on any single test occasion (internal consistency) indicates that the results correlate well so either orientation is acceptable for experimental purposes. The extent to which both techniques were measuring the same aspect (convergent validity) was more marked for the ideal image. A researcher using the distorting mirror can be confident that the ideal image is reliable over time using either orientation but that the perceived image requires a frontal orientation. The frontal or profile orientation is acceptable for the ideal image using the distorting video, but the profile orientation is advisable if one wishes a reliable perceived image. The researcher should also be cautious in assuming that both techniques are measuring an identical body-image construct.
Measures of body-fat or adiposity, body-image, and other psychological variables were obtained from a sample of 100 female volunteer subjects. The measures of adiposity included surface anthropometry, underwater weighing and a new electrical impedance method. Body-image measures were derived from two experimental techniques, namely the visual-size estimation (or calliper) method and a distorting-mirror, and also from a self-report body-satisfaction scale (BSS). The main findings were that measures of adiposity were positively and significantly related to each other. But, that by contrast, measures of body-image separated out into three distinct sets, namely: (i) 'mirror' accuracy, (2) 'callipers' accuracy, and (3) 'dissatisfaction/desire for change'. The 'accuracy' measures were found to be unrelated to measures of adiposity or other psychological variables: while the 'dissatisfaction' measures were found to relate to both of these. The implications of these findings for future studies of weight and eating disorder groups are discussed.
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The present study is an investigation of the elicitation of auditory and visual hallucinations by brief instructions and the relationship of the report of hallucinatory-type experiences to standard measures of suggestibility. Two experiments were carried out. The first used normal subjects predisposed or not predisposed to hallucinate, as assessed by the Launay-Slade Hallucination Scale (LSHS-A). The second used hallucinating and nonhallucinating psychiatric patients. The high LSHS-A scorers and the hallucinating psychiatric patients were significantly more likely to hear suggested sounds than were their respective controls. High LSHS-A scorers were also significantly more likely to see suggested objects than were their respective controls, although this finding was not replicated in the psychiatric subjects. No significant differences on measures of suggestibility were found between the groups, although in the psychiatric group Barber Test Suggestion and Subjective Involvement scores correlated positively with LSHS-A scores.
A group of behaviorally treated abstainers, controlled drinkers and relapsers who had been followed up for a minimum of 1 year were compared on eight treatment and 11 posttreatment variables. Discriminating characteristics of abstainers were their goal of abstinence at discharge and length of attendance at aftercare facilities. Controlled drinkers had a goal of controlled drinking and were most likely to have had controlled drinking training during treatment. Relapsers were most likely to have been discharged from treatment prematurely, to receive further treatment and to use psychotropic medication. No controlled drinkers attended Alcoholics Anonymous or received residential care during follow-up in contrast to a small proportion of abstainers and relapsers who did. Some aspects of the drinking behavior of controlled drinkers and relapsers were also studied. Controlled drinkers were more likely to have a period of initial abstinence and for a longer period of time. Of the controlled drinkers, 66% drank at least once per week and 86% set themselves drinking limits; average consumption of alcohol was 48 and 32 g/day by men and women, respectively. The majority of controlled drinkers changed their preferred beverage and their social and physical drinking environment after treatment in accordance with therapeutic advice.
Anorexia nervosa is frequently associated with neurotic traits and symptoms. The symptomatology and history of a housebound 20-year-old woman with anorexia nervosa and dysmorphophobia are described. The role of the family in maintaining the problems, use of external cues to control behaviour, overvalued somatic ideas and the definition of dysmorphophobia are discussed.
Fifty successful controlled drinkers, 45 abstainers and 44 relapsers who had been followed up intensively for a minimum of 1 year were compared on 32 pretreatment variables in an attempt to isolate those which would be predictors of outcome type. Treatment was behaviorally oriented, and all subjects except for those with liver damage were left to make their own choice of treatment goal. The results showed that the best predictors of abstinence were: previous contact with Alcoholics Anonymous (A.A.); medium period of previous abstinence; having been initiated to seek help by a specialist; having been a periodic drinker, and drinking exclusively alone or socially. Controlled drinkers were more likely to be continuous drinkers, were not likely to have attended A.A. or to have abstained for a significant period of time, were likely to have relatives with a drinking problem, to have been motivated to seek help by a friend or a relative and to be less discriminating about the social drinking environment. Relapsers were more likely to be unemployed, to have a history of A.A. attendance and to have had a short period of previous abstinence. They were most likely to have liver damage and therefore advised to abstain. The results were interpreted as suggesting that outcome is likely to be influenced by the subjects' cognitions, by past behavioral expectations and experience of abstinence, as well as having the freedom of a choice of goals for recovery.
The hypothesis that hallucinators are deficient in the metacognitive skill of reality testing was tested using the methodology of signal detection theory. In Expt 1 undergraduate subjects scoring high or low on a scale measuring predisposition to hallucination were tested on an auditory signal detection task. High scorers on the scale were found to differ from low scorers on a measure of perceptual bias but not on a measure of sensitivity. In Expt 2 a similar methodology was used with hallucinating and non-hallucinating schizophrenic patients, with similar results. These results support the hypothesis that hallucinators or subjects highly disposed towards hallucination are deficient in reality testing and are therefore prone to identify imaginary events as real.
Forty patients who have undergone treatment for breast cancer (mastectomy or lumpectomy plus radiotherapy) were assessed, both preoperatively and at intervals up to one year following surgery, using tests of anxiety, depression, body satisfaction, marital adjustment, self-esteem, sociability and life change. The women were also interviewed to assess degree of concern about the disease, appearance and treatment. Wherever appropriate, patients were given a choice of treatment. Very little adverse psychosocial reaction has been found. It would appear that this is largely because most patients could opt for treatment which resulted in minimal disfigurement.
Sensory deprivation as a scientific procedure was conceived in the early 1950s, intensively studied in the early 1960s, and applied in a limited way in the 1970s. From a consideration of the data, it is clear that clinical psychiatry could benefit from its more general application in the 1980s.
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