Biomedical subjects

D F Tolin

Publications and source records attributed to D F Tolin.

7 recordsLinked to original sources

PubMed1999

Visual avoidance in specific phobia.

Cognitive models of anxiety postulate that fear and anxiety serve as programs for avoidance of threat-relevant stimuli. We hypothesized that exposure to phobia-relevant stimuli would lead to visual avoidance in specific phobics. Spider phobic, blood-injection-injury phobic, and nonphobic participants were asked to view spider, injection, and neutral photographs through a three-channel tachistoscope that measured viewing time for each picture. Despite experimenter instructions to study the pictures carefully for a subsequent recognition test, phobic subjects showed decreased viewing times for threat-relevant pictures as compared to neutral pictures. Results are discussed in terms of cognitive models of anxiety disorders and implications for exposure-based therapies.

Adolescent↗

PubMed1999

Exposure to disgust-evoking imagery and information processing biases in blood-injection-injury phobia.

Biased processing of threat-relevant information is a central construct among contemporary theories of anxiety. However, biases in attentional and memory processes have not been systematically investigated in blood-injection-injury (BII) phobia. Theory has suggested that disgust rather than fear characterizes BII phobia and may mediate processing biases differently. We investigated the effects of a disgust mood induction on attention and memory in BII phobic and nonphobic participants. The Stroop task failed to demonstrate an attentional bias toward medical and disgust words, even under conditions of disgust provocation. However, an implicit memory task showed that BII phobics completed more medical and disgust word stems than nonphobics. These results suggest that BII phobia may be characterized by a similar implicit memory, but not an attentional, bias found in other anxiety disorders. As such, information processing in BII phobia may be qualitatively different from other anxiety disorders. Implications for further research regarding information processing biases in BII phobia are discussed.

Adolescent↗

PubMed1997

Disgust and disgust sensitivity in blood-injection-injury and spider phobia.

Blood-injection-injury (BII) phobics and spider phobics show markedly different cognitive, psychophysiological, and motoric reactions to activating stimuli. These observations have led theorists to question whether the emotion of fear mediates both phobias. The present study examined the role of disgust and disgust sensitivity in these subtypes of specific phobia. BII phobics, spider phobics, and nonphobics completed questionnaires and rated pictures of specific objects on fear and disgust scales. Questionnaire data indicated that phobic participants were higher than nonphobics on fear, and also on disgust sensitivity. The reaction of BII phobics to pictures of medical stimuli was one of disgust, rather than fear. The reaction of spider phobics to pictures of spiders was a combination of fear and disgust, though fear appeared to predominate. Results are discussed in view of current theories of emotional factors in specific phobia.

Adolescent↗

PubMed1996

A large sample empirical typology of male spouse abusers and its relationship to dimensions of abuse.

A number of studies have described typologies of domestically violent men. Holtzworth-Munroe and Stuart (1994) recently proposed a theoretical model for predicting violence severity and generality from personality "type." The present study, using data from 833 identified abusive men, tested the model. Personality types were determined from cluster analysis of data from the Millon Clinical Multiaxial Inventory, and resulted in a three-cluster solution consistent with the Holtzworth-Munroe and Stuart model. The three main clusters included nonpathological, antisocial, and passive aggressive-dependent groups. Three other, smaller types were also identified. Multivariate and chi-square analyses comparing the main clusters on other variables generally supported the Holtzworth-Munroe and Stuart model. Nonpathological men had the lowest maximum violence and frequency. They restricted their violence primarily to intimate relationships and had the fewest police contacts. Antisocial and passive aggressive-dependent men did not differ in maximum violence, but antisocial men were the most generally violent and had the most police contacts. Passive aggressive-dependent men had the highest frequency of violence. Clinical, theoretical and methodological implications are discussed.

Adult↗

PubMed1995

Eye movement desensitization of medical phobias: two case studies.

We treated two medical phobic subjects with eye movement desensitization (EMD). Using detailed images of fear-related events, the treatment design conformed to an additive, within-series phase change to examine enduring effects. Results indicated that both subjects' verbal reports of fear decreased substantially using the EMD procedure. There were no consistent changes in heart rate. Similarly, self-reported fear toward a simulated blood draw decreased, but heart rate and blood pressure did not. Data for a number of standardized measures of medical fear indicated posttreatment reduction for both subjects. Anecdotal reports of medical procedures revealed limited generalization of treatment effects.

Adult↗

PubMed1995

The empirical status of the clinical application of eye movement desensitization and reprocessing.

The published reports of the clinical application of eye movement desensitization and reprocessing (EMDR) are reviewed in terms of empirical validity. Case studies, single-subject experiments and group design experiments on clinical problems are evaluated for the effectiveness of the protocol, component effects, comparative effects and treatment fidelity. Classification of disorders and measurement issues are addressed. The protocol frequently reduces verbal report and independent observer ratings of distress--strikingly in some instances. Psychophysiologic measures show little effect of treatment. There is little empirical evidence to indicate the effect of treatment on motoric or behavioral indices. Eye movements do not appear to be an essential component of treatment, and there have been no substantial comparisons with other treatments. No studies have adequately controlled for nonspecific (placebo) effects of treatment. Suggestions are made for applying improved methodological controls for future applications of EMDR to clinical disorders.

Adult↗

PubMedDate not supplied

Eye Movement Desensitization and Reprocessing: an analysis of specific versus nonspecific treatment factors.

Incremental validity and incremental efficacy have become important issues in the evaluation of psychological assessment and intervention procedures. Incremental validity in assessment is that shown by novel measures over and above established ones. Incremental efficacy is that shown by novel treatments over and above nonspecific and established treatment effects. In this paper, we critically examine the question of whether Eye Movement Desensitization and Reprocessing (EMDR) possesses efficacy above and beyond nonspecific treatment effects and components that are shared with well-established interventions. A review of recently published efficacy studies reveals that (a) the effects of EMDR are largely limited to verbal report indices, (b) eye movements and other movements appear to be unnecessary, and (c) reported effects are consistent with nonspecific treatment features. Examination of individual studies shows that control procedures for nonspecific features have been minimal. We analyze EMDR for nonspecific treatment features and suggest experimental controls to examine the incremental efficacy of EMDR.

Anxiety Disorders↗