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David Spiegel

Publications and source records attributed to David Spiegel.

At least 55 records · Page 3Linked to original sources
PubMed2003

Circadian disruption in cancer: a neuroendocrine-immune pathway from stress to disease?

Psychosocial factors may modulate the course of cancer, but few data have been gathered on the biological mechanisms by which these effects may be mediated. We briefly review evidence of psychosocial effects on cancer progression and discuss one potential pathway that may underlie these effects: the disruption of neuroendocrine and immune circadian rhythms. Circadian system alterations occur in tumor tissue, tumor-bearing animals, and cancer patients with greater disruption seen in more advanced cases. Rhythm alterations include diminished amplitude, phase shifts, period changes, and erratic peaks and troughs in endocrine, metabolic, immunological, and rest- activity cycles. Psychosocial factors can engender dysregulation of circadian function. Cancer-related circadian dysregulation may also be driven by genetic factors, environmental and behavioral influences, and effects of the tumor on host clock regulation. There are several mechanisms by which circadian disruption might hasten tumor growth: via direct effects of altered hormone levels on tumor cells, effects on tumor versus host metabolism, neuroimmune effects resulting in cancer-relevant immunosuppression, or reduced efficacy and tolerability of cancer treatments for which the timing of administration is based upon the assumption of normal circadian rhythms. Emerging data in the human and animal literature suggest that circadian regulation may be an important prerequisite for the maintenance of host defenses against cancer. Thus, stress-related circadian disruption may have negative implications for cancer prognosis. Psychosocial effects on cancer progression may be measured, and possibly mediated, by disruption of circadian function.

Animals↗
PubMed2003

Living in the face of death: interviews with 12 terminally ill women on home hospice care.

OBJECTIVE: To determine how home hospice patients deal with their impending death and whether there is a need for greater involvement of mental health professionals in the care of patients dying at home. METHOD: In a pilot study, 12 female home hospice patients with advanced cancer and a median survival time of 42 days were assessed using structured interviews and brief questionnaires. Topics of inquiry included facing death, fear of death, pain, fatigue, depression, and anxiety. Three key themes were extracted from the information reported by the women: (1) confronting the issue of death, (2) fear of dying and death and its correlates, and (3) spirituality/religious faith and its role in mitigating fear of death. RESULTS: First, all subjects reported thinking about their approaching death. For half of them, this thought was bothersome and these women were frequently troubled by unresolved issues and higher anxiety, pain, and fatigue. The majority of the subjects expressed a desire to actively discuss their impending death. Second, more than half of the patients reported being afraid of death and high death anxiety was associated with fear of dying in pain, high peak or usual pain, unresolved issues, and difficulty in parting with family in death. Third, most subjects experienced their religious faith as an important source of comfort and strength. SIGNIFICANCE OF RESULTS: A substantial subgroup of home hospice patients expressed problems dealing with their approaching death. These problems are amenable to psychological treatment, such as fear of death, unresolved issues, parting with family, and pain. The findings, thus, highlight the need for close collaboration of mental health professionals with home hospice institutions.

Adaptation, Psychological↗
PubMed2003

Negative and positive visual hypnotic hallucinations: attending inside and out.

Hypnotic perceptual alteration affects brain function. Those hypnotic instructions that reduce perception by creating an illusory obstruction to it reduce brain response to perception in the cognate sensory cortex, as measured by event-related potential (ERP) amplitude and regional blood flow (PET). Those hypnotic instructions that affect the subject's reaction to perception activate the anterior attentional system, especially the anterior cingulate cortex in PET studies. Hypnosis involves activation without arousal and may be particularly mediated via dopaminergic pathways. Hypnotic alteration of perception is accompanied by measurable changes in both perceptual and attentional function of those specific regions of the brain that process these activities, modulated by the nature of the specific hypnotic instruction. Positive obstructive hallucinations seem to allow for a hypnotic focus inward, activating the functioning of attentional neural systems and reducing perceptual ones.

Affect↗
PubMed2003

Adverse short-term effects of attention-control treatment on hypnotizability: a challenge in designing controlled hypnosis trials.

Characteristics of patients in test and attention-control groups should be comparable and be unaffected by the intervention to be tested in clinical trials. The authors assessed whether this is the case for measures of hypnotizability in the postoperative period. One hundred and forty-six patients undergoing percutaneous peripheral vascular or renal interventions were randomized into 2 groups. One group received structured empathic attention during their procedures; the other was guided to self-hypnotic relaxation. Hypnotizability was assessed postoperatively by the Hypnotic Induction Profile. The eye-roll scores, which measure the biological hypnotic potential, were not significantly different, but the average induction scores, which measure the expression of the hypnotic performance, were significantly lower in the attention group than the hypnosis group (4.9 vs. 5.9). The authors conclude that patients who were aided by an external focus intraoperatively are postoperatively less able or willing to follow suggestions measuring hypnotizability than patients who had guidance to self-hypnotic relaxation.

Adolescent↗
PubMed2003

Social support, substance use, and denial in relationship to antiretroviral treatment adherence among HIV-infected persons.

This study examined the relationship of adherence to antiretroviral treatment with three types of social support (partner, friends, and family) and use of two coping strategies (denial and substance use). Participants were 73 men and women with HIV infection drawn from a larger sample of 186 clinical trial patients. Based on inclusion criteria, parent trial participants taking antiretroviral therapies, and those with complete data on self-reported measures of adherence were considered eligible for the present study. Overall, 26% of participants were found to be nonadherent, which was defined as one or more missed doses of treatment in the prior 4-day period. Logistic regression analysis was conducted to determine associations of sociodemographic and psychosocial variables with adherence to antiretroviral regimen. Results indicated that heterosexual participants (p < 0.01) and participants of Latino ethnicity (p < 0.05) were significantly more likely to report missed medications. Perceived satisfaction with support from a partner was associated with taking antiretroviral therapy as prescribed, whereas satisfaction with support from friends and from family was not significantly related to adherence. Examination of coping strategies showed that participants reporting drug and alcohol use (p <.05) to cope with HIV-related stress were more likely to be nonadherent. These findings call for adherence interventions designed to address barriers and strengths, such as community norms or traditional cultural values, specific to certain populations. Furthermore, couple-based approaches enlisting partner support may help persons living with HIV to adhere to antiretroviral regimens.

Adaptation, Psychological↗
PubMed2003

Correlates of sexually transmitted disease infection among adults living with HIV.

This study examined the prevalence of sexually transmitted diseases (STDs) as well as the relationships between STDs and coping strategies used to deal with the stress of living with HIV among adults. The sample comprised 179 men and women, 58% were Caucasian, 54% were male, more than half (61%) were diagnosed with AIDS, 43% were heterosexual, and 39% reported an STD post-HIV diagnosis. Logistic regression analysis indicated that individuals reporting longer time elapsed since HIV diagnosis and greater use of emotion-focused coping were more likely to report STDs. There was an interaction effect between time and coping such that the less time that elapsed since HIV diagnosis and the more an individual used emotion-focused coping, the more likely they were to report an STD. Tailoring interventions to address specific stressors associated with length of time living with HIV, may be a particularly effective prevention strategy.

Adaptation, Psychological↗
PubMed2002

Comorbidity of depression with other medical diseases in the elderly.

A major factor in the context of evaluating depression in the elderly is the role of medical problems. With aging there is a rapid increase in the prevalence of a number of medical disorders, including cancer, heart disease, Parkinson's disease, Alzheimer's disease, stroke, and arthritis. In this article, we hope to bring clarity to the definition of comorbidity and then discuss a number of medical disorders as they relate to depression. We evaluate medical comorbidity as a risk factor for depression as well as the converse, that is, depression as a risk factor for medical illness. Most of the disorders that we focus on occur in the elderly, with the exception of HIV infection. This review focuses exclusively on unipolar disorder. The review summarizes the current state of the art and also makes recommendations for future directions.

Acquired Immunodeficiency Syndrome↗
PubMed2002

HIV: effectiveness of complementary and alternative medicine.

Outcome studies examining the efficacy of CAM among people living with HIV-AIDS are often conducted among small sample sizes with very little follow-up data or time points. Generalizability of many of the study findings is further limited by participant attrition. It is difficult to conduct clinical studies on chronically ill patients without participants dropping out, typically because the study demands coupled with their illness become too burdensome. Several studies have been conducted that include control groups, double-blind designs, and randomization. These scientifically sound studies have demonstrated promising results that strongly indicate a need for further research with larger samples in a prospective research design so that safety and efficacy can be determined over time. Many of the studies with small sample sizes reported trends, but did not find statistical significance. Increasing sample sizes in future studies is necessary to evaluate the scientific merit of these trends. Moreover, researchers need to evaluate the clinical and statistical significance in CAM use. The psychologic benefits of taking CAM should not be underestimated. For the purposes of this article, the authors did not include psychologic outcomes; however, there is evidence suggesting that decreasing depression can decrease HIV-related somatic complaints [69]. Studies need also to examine the effectiveness of CAM on psychologic outcomes and physical outcomes. This article and the authors' own research (Gore-Felton C et al, unpublished data) have revealed a high prevalence of alternative supplement use in conjunction with HIV medication, indicating an urgent need to understand the health benefits and the health risks of alternative supplements among patients with HIV and AIDS. Patients and physicians need more empirically based research to examine the toxicities, interactions, and health benefits of CAM. Many patients do not report the use of CAM to their physicians and very few physicians record treatments in the clinical record [70]. This will likely change as CAM becomes more widely recognized as a legitimate medical intervention; however, controlled outcome studies among large, diverse samples of people living with HIV-AIDS are needed. Health care providers need to assess the use of herbal and alternative therapy practices by their patients. Some patients may not be aware that they are taking a supplement or plant-based herb. Furthermore, some patients may believe that they are using something innocuous and even healthy simply because it came from a health food store. Understanding the contraindications of alternative therapies is necessary to prevent deleterious outcomes and to facilitate the safe and efficacious use of CAM in the management of HIV disease and related symptoms. As the epidemic in the United States continues to rise among women and minority populations, clinical research trials must include ethnically diverse patient populations that are gender balanced. Current available studies indicate that many CAM interventions may improve the quality of life of people living with HIV-AIDS; however, further studies using longitudinal, controlled designs are needed to accurately assess the safety of such interventions.

Acquired Immunodeficiency Syndrome↗
PubMed2002

How to launch a national Internet-based panel study quickly: lessons from studying how American are coping with the tragedy of September 11, 2001?

This article reports on the planning, development, and implementation of a large national Internet-based panel study of how Americans are coping with the terrorist attacks of September 11, 2001. The study was designed to determine predictors and correlates of risk and resilience, both cross-sectionally and longitudinally. In order to acquire timely and meaningful data, we developed/adapted an extensive set of measures, obtained human subjects approval, and posted a research Web site just 17 days after the attacks. This article describes the major hurdles we confronted and the guidelines we recommend regarding these topics, including the methodological trade-offs inherent in Internet-based research, information technology requirements and tribulations, human subjects issues, selection of measures and securing permission for their use, and the challenges of participant recruitment. We also discuss issues that we did not anticipate, including the survey intervention. We focus not on findings, but on the concrete procedural, administrative, technical, and scientific challenges we encountered and the solutions we devised under considerable time and resource pressures.

Journal Article↗
PubMed2002

Coping, social support, and attachment style as psychosocial correlates of adjustment in men and women with HIV/AIDS.

The purpose of this study was to examine psychosocial correlates of adjustment to HIV/AIDS in a sample of 137 HIV-positive persons (78 men and 59 women). Multiple regression analysis was used to examine relationships between perceived quality of general social support, three attachment styles, and three coping styles with total score on Positive States of Mind Scale (PSOMS), our measure of adjustment. The influence of demographic and medical status variables was also accounted for. PSOMS total score was significantly associated with greater satisfaction with social support related to HIV/AIDS, more secure attachment style, and less use of behavioral disengagement in coping with HIV/AIDS. These results indicate that for people with HIV or AIDS, those individuals who are more satisfied with their relationships, securely engaged with others, and more directly engaged with their illness are more likely to experience positive adjustment. Implications for physical health outcome and opportunities for intervention are discussed.

Acquired Immunodeficiency Syndrome↗
PubMed2002

Traumatic stress symptoms among women with recently diagnosed primary breast cancer.

This study examined the concurrent and longitudinal relationships between traumatic stress symptoms and demographic, medical, and psychosocial variables among women recently diagnosed with primary breast cancer. Participants were 117 women drawn from a parent study for women recently diagnosed with primary breast cancer. At baseline, the Impact of Event Scale (IES) total score was related to intensity of postsurgical treatment and lower emotional self-efficacy. At the 6-month follow-up, the IES total score was significantly related to younger age, to the increased impact of the illness on life, and to the baseline IES total score assessment. These results suggest that it is important to intervene for traumatic stress symptoms soon after the diagnosis of breast cancer. Furthermore, these results suggest women at greatest risk are those who are younger, who receive postsurgical cancer treatment, who are low in emotional self-efficacy and whose lives are most affected by having cancer.

Adult↗
PubMed2002

Acute stress reactions following the assassination of Mexican presidential candidate Colosio.

Considerable evidence suggests that exposure to traumatic events increases the risk of developing anxiety-spectrum disorders in response to later traumatization. We conducted a survey in Guadalajara, Mexico to assess factors associated with acute stress reactions to the assassination of a political figure. Participants included 86 adults who completed the Stanford Acute Stress Reaction Questionnaire (SASRQ) and measures of the perceived impact of the assassination, exhibited emotional behavior following the assassination, and had exposure to a specific prior disaster (a gas pipeline explosion). The results suggest that acute stress reactions can occur in response to an assassination, and that those most susceptible are those most emotionally invested, those who engage in emotional behavioral responses, and those whose lives have been affected by a previous potentially traumatic event.

Adolescent↗
PubMed2002

Change in emotion-regulation strategy for women with metastatic breast cancer following supportive-expressive group therapy.

Four relatively independent emotion-regulation constructs (suppression of negative affect, restraint, repression, and emotional self-efficacy) were tested as outcomes in a randomized trial of supportive-expressive group therapy for women with metastatic breast cancer. Results indicate that report of suppression of negative affect decreased and restraint of aggressive, inconsiderate, impulsive, and irresponsible behavior increased in the treatment group as compared with controls over 1 year in the group. Groups did not differ over time on repression or emotional self-efficacy. This study provides evidence that emotion-focused therapy can help women with advanced breast cancer to become more expressive without becoming more hostile. Even though these aspects of emotion-regulation appear trait-like within the control group, significant change was observed with treatment.

Adaptation, Psychological↗
PubMed2002

Effects of psychotherapy on cancer survival.

The possibility that psychotherapy could extend survival time for cancer patients has attracted attention among clinical investigators interested in the mind-body connection, among cancer patients seeking the best possible outcome and among the general public. A small number of randomized trials have been conducted, and they have produced conflicting results. Does emotional support affect the course of cancer? What physiological pathways might mediate such an effect? Given what we now know, should we change the standard of care for cancer patients?

Humans↗
PubMed2002

Mesmer minus magic: hypnosis and modern medicine.

The implications and effects of the French commission that passed judgment on Mesmer's work is examined in light of the pioneering role of hypnosis as the first Western conception of a psychotherapy, the ancient philosophical debate between idealism and empiricism, and the conflict in modern medicine between biotechnological emphasis on cure and the need for care as many previously terminal illnesses are converted to chronic diseases. The panel's report is interpreted as negative about the literal theory of animal magnetism but actually supportive of the potential therapeutic power of suggestion and "positive thinking." This aspect of hypnosis is described as a forerunner of modern cognitive therapies of depression and other illnesses. The panel exerted a constructive effect in applying scientific method and rigorous evaluation to hypnotic treatment, an application of Enlightenment philosophy that presaged the Flexner era in modern medicine. Both hypnosis and medicine ultimately benefited.

France↗
PubMed2002

An example of maximizing survey return rates. Methodological issues for health professionals.

Obtaining a high response rate in survey research can bolster statistical power, reduce sampling error, and enhance the generalizability of the results to the population surveyed. We describe a mail survey designed to achieve a high return rate of completed questionnaires from members of the American Psychological Association who were engaged in clinical practice. We adapted the Total Design Method for survey research and were able to achieve a high response rate (68%) among health professionals. This was not an experiment in which we assessed the best method to increase survey response rates, hence we cannot empirically evaluate how each of the steps influenced our overall response rate. Future research is needed to identify the relative effectiveness of each of these principles in enhancing survey response rates. Research is also needed to distinguish general principles that apply across populations from those that must be tailored to specific subpopulations.

Child↗
PubMed2002

Acute stress reactions to recent life events among women and men living with HIV/AIDS.

OBJECTIVE: This study examined the prevalence of acute stress reactions to recent life events among persons living with HIV/AIDS. A second aim was to investigate the relationship of acute stress reactions among HIV-infected men and women to posttraumatic stress disorder (PTSD) symptoms to previous traumatic life events. METHOD: Participants included 64 HIV-seropositive persons (33 men and 31 women) drawn from a larger study examining the effects of group therapy on quality of life and health behavior. These individuals were assessed at baseline on demographic and medical status characteristics and (PTSD) symptoms andthen randomly assigned to either receive group therapy plus education or education alone. Three months later they were assessed for acute stress reactions to recent life events. RESULTS: Nearly a third (31.3 percent) of the participants reported levels of acute stress reactions to recent life events that met all symptom criteria for the diagnosis of acute stress disorder. However, only 9.4 percent of the respondents described a recent stressful life event that was threatening to the life or physical integrity of themselves or others. Acute stress reactions to recent life events were significantly and positively related to experiencing PTSD symptoms to prior traumatic life events. Acute stress did not differ significantly by gender, AIDS status, or whether or not participants had received 12 weeks of group therapy. CONCLUSIONS: A subset of individuals with HIV/AIDS experience high levels of acute stress reactivity to life events considered non-traumatic. HIV-infected individuals who react strongly to ongoing life stressors are more likely to have developed PTSD symptoms in response to previous traumatic life events.

Acquired Immunodeficiency Syndrome↗