Biomedical subjects

Sandra T Sigmon

Publications and source records attributed to Sandra T Sigmon.

9 recordsLinked to original sources

PubMed2006

Stress reactivity and coping in seasonal and nonseasonal depression.

Stress, stress reactivity, and coping skill use were examined in individuals with seasonal depression, nonseasonal depression, and nondepressed controls. Although participants in the two depressed groups reported using more avoidance coping strategies than controls, only participants in the seasonal depressed group reported using more season-specific coping (i.e., light-related strategies) than participants in the nonseasonal depressed and control groups. Individuals in the seasonal depressed group also reporting using acceptance coping strategies less frequently than individuals in the control group. Only participants in the nonseasonal depressed group, however, exhibited greater psychophysiological arousal in reaction to a laboratory stressor (i.e., unsolvable anagram task) when compared to participants in the seasonal and nondepressed control groups. Participants in both depressed groups reported greater impact of negative life events during the past 6 months than did controls. Similarities and differences in the two types of depression may have implications for the conceptualization and treatment of seasonal depression.

Adaptation, Psychological↗

PubMed2004

Defining competencies in psychology supervision: a consensus statement.

Supervision is a domain of professional practice conducted by many psychologists but for which formal training and standards have been largely neglected. In this article, supervision is proposed as a core competency area in psychology for which a number of elements reflecting specific knowledge, skills, and values must be addressed to ensure adequate training and professional development of the trainee. Supra-ordinate factors of supervision viewed as permeating all aspects of professional development are proposed. These include the perspective that professional development is a lifelong, cumulative process requiring attention to diversity in all its forms, as well as legal and ethical issues, personal and professional factors, and self- and peer-assessment. A competencies framework is presented with particular elements representing knowledge (e.g., about psychotherapy, research, etc.), skills (including supervising modalities, relationship skills, etc.), values (e.g., responsibility for the clients and supervisee rests with supervisor, etc.), and meta-knowledge. Social contextual factors and issues of education and training, assessment, and future directions also are addressed, with specific elements listed. Suggestions for future work in this area are addressed, including the need to refine further and operationalize competences, develop clear expectations for accreditation and licensure regarding supervision competencies, and expand the description of developmental levels of supervisors from minimal to optimal competence. This is one of a series of articles published together in this issue of the Journal of Clinical Psychology. Several other articles that resulted from the Competencies Conference: Future Directions in Education and Credentialing in Professional Psychology will appear in Professional Psychology: Research and Practice and The Counseling Psychologist.

Clinical Competence↗

PubMed2004

Attentional bias to threat and emotional response to biological challenge.

Attentional bias towards threat reliably correlates with clinical anxiety status as well as elevated trait anxiety. Although such findings have led many to posit a potential causative or predictive role of threat-biased attentional processes on anxiety problems, little informative research exists. The present investigation was designed to address the role of threat-biased attentional processes on emotional/fearful responding. Eighty-seven participants provided baseline measures of anxiety vulnerability (i.e., anxiety sensitivity; unmasked/masked emotional Stroop task indices) and then underwent biological challenge procedures (inhalations of 20% carbon dioxide (CO2)-enriched air). Following challenge, participants completed measures of emotional response. Regression analyses indicated that both unmasked and masked attentional bias indices significantly predicted emotional responding above and beyond anxiety sensitivity. Exploratory analyses also revealed a gender effect, with prediction of emotional response largely attributable to females. These findings support attentional bias towards threat as a relatively independent factor predictive of emotional responding.

Adult↗

PubMed2004

The role of anxiety level, coping styles, and cycle phase in menstrual distress.

Using three samples, researchers investigated the relation between various anxiety levels, coping strategy use, and menstrual cycle phase to menstrual distress. In Studies 1 and 2, women low in anxiety sensitivity used more acceptance coping strategies and women high in anxiety sensitivity reported using more maladaptive coping strategies. In Study 2, women with medium anxiety sensitivity reported similar coping strategies to women low in anxiety. Menstrual cycle phase did not differentially affect coping strategy use in women varying in anxiety sensitivity levels in Studies 1 and 2. In addition to depressed mood emerging as a significant predictor of premenstrual distress in these two studies for all participants, avoidance coping for women high in anxiety sensitivity and problem-focused coping for women low in anxiety sensitivity were also significant predictors of premenstrual distress. In Study 3, during the premenstrual phase, women with panic disorder, compared to controls, reported using more avoidance coping whereas controls reported used more active coping and seeking social support for emotional and instrumental reasons. Results are discussed within a continuity model from high anxiety sensitivity to anxiety disorder for maladaptive coping and menstrual distress.

Adaptation, Psychological↗

PubMed2003

Cognitive-behavioral factors in seasonal affective disorder.

To longitudinally examine cognitive-behavioral correlates of seasonal affective disorder (SAD), the authors assessed women with a history of SAD and nondepressed, matched controls across fall, winter, and summer. SAD history participants reported more automatic negative thoughts throughout the year than controls and demonstrated a progression from decreased activity enjoyment during fall to reduced activity frequency during winter. Ruminative response style, measured in fall, predicted symptom severity during the winter. Across assessments, SAD history women endorsed greater depressive affect in response to low light intensity stimuli than to bright or ambiguous intensity stimuli, but less depressed mood to bright light stimuli than controls. These results suggest that the cognitive-behavioral factors related to nonseasonal depression may play a role in SAD.

Adult↗

PubMed2002

Physiological and psychological reactivity in women with asthma: the effects of anxiety and menstrual cycle phase.

The relation between menstrual cycle timing, panic attacks, and diagnosis of asthma was explored in this study. Women with or without asthma and with or without a history of panic attacks engaged in a psychophysiological task during either the intermenstrual or premenstrual cycle phase and completed self-report measures of menstrual symptoms and attitudes, general psychological symptoms, and attitudes toward illness. No significant differences were identified for psychological or psychophysiological measures with menstrual cycle phase as a factor. However, women with both asthma and a history of panic attacks reported more general psychological distress than women in the other groups, and more state anxiety than controls. Women in the asthma, asthma and panic, and panic groups reported higher anxiety sensitivity than the control group. After listening to asthma-related scenes, women with asthma exhibited a decrease in peak expiratory air flow, and women with asthma and panic exhibited increased skin conductance response magnitude. Implications for the role of anxiety in lung function are discussed, as well as directions for future research with asthma and anxiety populations.

Adolescent↗

PubMed2002

Reporting ethical practices in journal articles.

Little attention has focused on the reporting of ethical research practices in journal articles. In Study 1, published articles in 2 psychopathology journals were reviewed to ascertain the types of ethical research information that were reported. In Study 2, a survey was sent to authors in Study 1 to determine which ethical practices they engaged in, if they reported this information, and reasons for not including this information in their article. In general, there is a great variability regarding the types of ethical research practices reported in journal articles. Commonly cited reasons for not including ethical research practice information in the articles included the need for brevity, belief that it was common practice, and lack of relevance for the project. These results suggest that there is no standard practice for reporting research practices in journal articles and great variability in the implementation of procedures that are generally considered standard.

Behavioral Research↗

PubMed1997

Effects of consent form information on self-disclosure.

When researchers encounter preexisting psychological distress in participants, ethical codes provide little guidance on how to balance issues of beneficence and autonomy. Although researchers may inform participants what will occur given responses indicating distress, this information may lead to biased self-reports. This important issue was addressed in this study by manipulating consent form information regarding the type of psychopathology to be assessed and various levels of possible follow-up. In comparing responses on self-report measures of anxiety, depression, and general psychological distress, men who believed depression was the focus of the study reported fewer symptoms of depression and less trait anxiety as intrusiveness of experimenter follow-up increased. These results are discussed within the framework of socialization theory. Given that half of the sample did not correctly answer questions regarding information contained in the consent form, guidelines to improve consent form comprehension are offered.

Altruism↗

PubMed1995

Ethical practices and beliefs of psychopathology researchers.

Ethical guidelines are vague concerning how situations should be handled when researchers encounter participants in preexisting psychological distress. Ethical issues of beneficence, autonomy, and the nature of informed consent may arise in these situations. This study investigated the ethical practices and beliefs of 84 psychopathology researchers when confronting research participants in distress. Results indicated that psychopathology researchers in general engaged in diverse ethical practices in providing debriefing, treatment referrals, and providing for distressed participants. Characteristics of the designated studies and of the researchers accounted for significant differences in ethical practices. In addition, the type of psychopathology being assessed accounted for significant differences in ethical practices and beliefs. Guidelines are offered to aid researchers who encounter participants in preexisting distress.

Altruism↗