"Highly informative and remarkably entertaining." —Elle From forest trails in Korea, to islands in Finland, to eucalyptus groves in California, Florence Williams investigates the science behind nature’s positive effects on the brain. Delving into brand-new research, she uncovers the powers of the natural world to improve health, promote reflection and innovation, and strengthen our relationships. As our modern lives shift dramatically indoors, these ideas—and the answers they yield—are more urgent than ever.
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Asthma, like many inflammatory disorders, is affected by psychological stress, suggesting that reciprocal modulation may occur between peripheral factors regulating inflammation and central neural circuitry underlying emotion and stress reactivity. Despite suggestions that emotional factors may modulate processes of inflammation in asthma and, conversely, that peripheral inflammatory signals influence the brain, the neural circuitry involved remains elusive. Here we show, using functional magnetic resonance imaging, that activity in the anterior cingulate cortex and insula to asthma-relevant emotional, compared with valence-neutral stimuli, is associated with markers of inflammation and airway obstruction in asthmatic subjects exposed to antigen. This activation accounts for > or =40% of the variance in the peripheral markers and suggests a neural basis for emotion-induced modulation of airway disease in asthma. The anterior cingulate cortex and insula have been implicated in the affective evaluation of sensory stimulation, regulation of homeostatic responses, and visceral perception. In individuals with asthma and other stress-related conditions, these brain regions may be hyperresponsive to disease-specific emotional and afferent physiological signals, which may contribute to the dysregulation of peripheral processes, such as inflammation.
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Civil societies function because people pay taxes and make charitable contributions to provide public goods. One possible motive for charitable contributions, called “pure altruism,” is satisfied by increases in the public good no matter the source or intent. Another possible motive, “warm glow,” is only fulfilled by an individual's own voluntary donations. Consistent with pure altruism, we find that even mandatory, tax-like transfers to a charity elicit neural activity in areas linked to reward processing. Moreover, neural responses to the charity's financial gains predict voluntary giving. However, consistent with warm glow, neural activity further increases when people make transfers voluntarily. Both pure altruism and warm-glow motives appear to determine the hedonic consequences of financial transfers to the public good.Seeing one's taxes spent on public services is not as rewarding as paying for them oneself.
Seeing one's taxes spent on public services is not as rewarding as paying for them oneself.
OBJECTIVE: The purpose of this study was to use functional magnetic resonance imaging (fMRI) to probe the neural circuitry associated with reactivity to negative and positive affective stimuli in patients with major depressive disorder before treatment and after 2 and 8 weeks of treatment with venlafaxine. Relations between baseline neural activation and response to treatment were also evaluated.
METHOD: Patients with major depressive disorder (N=12) and healthy comparison subjects (N=5) were scanned on three occasions, during which trials of alternating blocks of affective and neutral pictorial visual stimuli were presented. Symptoms were evaluated at each testing occasion, and both groups completed self-report measures of mood. Statistical parametric mapping was used to examine the fMRI data with a focus on the group-by-time interactions.
RESULTS: Patients showed a significant reduction in depressive symptoms with treatment. Group-by-time interactions in response to the negative versus neutral stimuli were found in the left insular cortex and the left anterior cingulate. At baseline, both groups showed bilateral activation in the visual cortices, lateral prefrontal cortex, and amygdala in response to the negative versus neutral stimuli, with patients showing greater activation in the visual cortex and less activation in the left lateral prefrontal cortex. Patients with greater relative anterior cingulate activation at baseline in response to the negative versus neutral stimuli showed the most robust treatment response.
CONCLUSIONS: The findings underscore the importance of the neural circuitry activated by negative affect in depression and indicate that components of this circuitry can be changed within 2 weeks of treatment with antidepressant medication.
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Global events such as mass extinctions, the onset of Ice Ages, and changes in geochemistry linked with changes in atmospheric chemistry are timeposts in geological strata. In the timeline for Earth history, they allow segmentation of its 4.6 billion year existence into eons, eras, periods, and epochs. As human activity makes its recently initiated yet globally extensive mark that is leading to mass extinctions, changes in atmospheric and marine chemistry, and altering terrestrial features, should a new epoch be declared? Can such an Anthropocene be geologically standardized in strata? Zalasiewicz et al make their case in this article featured in ES&T’s April 1, 2010 print issue recognizing the 40th Anniversary of Earth Day.
Morse, N. B., P. A. Pellissier, E. N. Cianciola, R. L. Brereton, M. M. Sullivan, N. K. Shonka, T. B. Wheeler, and W. H. McDowell. 2014. Novel ecosystems in the Anthropocene: a revision of the novel ecosystem concept for pragmatic applications. Ecology and Society 19(2): 12. https://doi.org/10.5751/ES-06192-190212
the Amazon, Brazil, where pioneering work taking an ecosystem approach to human health provided a complete new view of the origin of mercury in the environment and its effects on human health. Photo h \ Jean Lebel.
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AIMS & OBJECTIVES: Twenty-six cancer survivor volunteers participated in a study of the efficacy of perceived relaxation after performing restorative yoga combined with Reiki.RESULTS: Subjects scoring high ratings of Meaning and Peace in life demonstrated greater perception of depth of relaxation. A comparison of subjects receiving concurrent Reiki (19) and restorative yoga with those who only received restorative yoga (7) showed that Reiki subjects experienced greater perceived depth of relaxation than subjects who were not afforded the Reiki intervention. Non-Reiki participants also showed more difficulty overcoming intrusive fearful thoughts than the Reiki group.
CONCLUSIONS: Clinical implications suggest that patients should be screened and treated for trauma-like symptoms including intrusive thoughts linked to anxiety and depression before referral to complementary programs that offer meditative or relaxation interventions.
Many people do not seem to have interesting perceptual experiences while in contact with nature. To identify potential antecedents of positive perceptual experiences in natural settings, we investigated the role of a personal connection to nature on perceptual evaluation of preference-related environmental information in varying natural settings. The participants (N = 77) rated three different types of images of rural forest landscapes in terms of perceived environmental information, including sense of safety, coherence, complexity, legibility, mystery, attentional restorativeness, familiarity, and preference. They also reported their personal connection to nature. The results showed that deeper personal connections to nature are associated with greater perceptual evaluations of sense of safety, legibility, mystery, and attentional restorativeness after accounting for landscape type and familiarity. A personal connection to nature is likely to enhance a person?s perceptual experiences of natural landscapes.
<p>The article gives an account of the Phombos. Phombos are the traditional healers and shamans of the Jirels. The article is an extension of the article "Jirel Religion" from the same volume, which describes on the role of the Phombos in the clan rituals of the Jirel. This article also discusses the functions of the Phombo and includes their similarities with lamas and jhakris in Nepal. (Rajeev Ranjan Singh 2006-10-13)</p>
Background: Increasingly, bipolar disorder is being treated with maintenance combinations of medication and psychotherapy. We examined the feasibility and benefits associated with an 8-week mindfulness-based cognitive therapy (MBCT) class for bipolar patients who were between episodes. Participants (N = 22; mean age, 40.6 yrs; 14 bipolar I, 8 bipolar II) were existing patients in outpatient clinics at Oxford University (n = 14) or the University of Colorado, Boulder (n = 8), most undergoing pharmacotherapy with mood stabilizers and/or atypical antipsychotic agents. Patients underwent a pretreatment assessment of symptoms and then received the 8-week MBCT in four separate groups, two at each site. MBCT consisted of mindfulness meditation strategies and traditional cognitive-behavioral techniques to address the mode in which negative thoughts and feelings and emerging manic symptoms are processed. We examined within-group changes from pre- to posttreatment in the four aggregated groups. Of the 22 patients, 16 (72.7%) completed the groups. Reductions were observed in depressive symptoms and suicidal ideation, and to a lesser extent, manic symptoms and anxiety. A case study illustrating the effects of MBCT is given. In conclusion, MBCT is a promising treatment alternative for bipolar disorder, particularly for managing subsyndromal depressive symptoms. There is a need for larger-scale randomized trials that examine the cost-effectiveness and relapse-prevention potential of this modality.
The impact on climate from 200 years of industrial development is an everyday fact of life, but did humankind's active involvement in climate change really begin with the industrial revolution, as commonly believed? Plows, Plagues, and Petroleum has sparked lively scientific debate since it was first published--arguing that humans have actually been changing the climate for some 8,000 years--as a result of the earlier discovery of agriculture.The "Ruddiman Hypothesis" will spark intense debate. We learn that the impact of farming on greenhouse-gas levels, thousands of years before the industrial revolution, kept our planet notably warmer than if natural climate cycles had prevailed--quite possibly forestalling a new ice age.Plows, Plagues, and Petroleum is the first book to trace the full historical sweep of human interaction with Earth's climate. Ruddiman takes us through three broad stages of human history: when nature was in control; when humans began to take control, discovering agriculture and affecting climate through carbon dioxide and methane emissions; and, finally, the more recent human impact on climate change. Along the way he raises the fascinating possibility that plagues, by depleting human populations, also affected reforestation and thus climate--as suggested by dips in greenhouse gases when major pandemics have occurred. While our massive usage of fossil fuels has certainly contributed to modern climate change, Ruddiman shows that industrial growth is only part of the picture. The book concludes by looking to the future and critiquing the impact of special interest money on the global warming debate. In the afterword, Ruddiman explores the main challenges posed to his hypothesis, and shows how recent investigations and findings ultimately strengthen the book's original claims.
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<p>The article discusses ethnosemantics of vocabulary relating to birds in Jirel. The article starts with a brief discussion on ethnographic study and cognitive anthropology. It discusses the principles of folk biological classification. It includes tables containing Jirel names for birds, Jirel bird name binomials, sorting task results, description of selected birds, sort by altitude, sort by nesting environment, sort by food, and free sort. (Rajeev Ranjan Singh 2006-10-13)</p>
This study evaluated mindfulness-based cognitive therapy (MBCT), a group intervention designed to train recovered recurrently depressed patients to disengage from dysphoria-activated depressogenic thinking that may mediate relapse/recurrence. Recovered recurrently depressed patients (n = 145) were randomized to continue with treatment as usual or, in addition, to receive MBCT. Relapse/recurrence to major depression was assessed over a 60-week study period. For patients with 3 or more previous episodes of depression (77% of the sample), MBCT significantly reduced risk of relapse/recurrence. For patients with only 2 previous episodes, MBCT did not reduce relapse/recurrence. MBCT offers a promising cost-efficient psychological approach to preventing relapse/recurrence in recovered recurrently depressed patients.
Objective: Both Mindfulness Based Cognitive Therapy (MBCT) and Cognitive Therapy (CT) enhance self-management of prodromal symptoms associated with depressive relapse, albeit through divergent therapeutic procedures. We evaluated rates of relapse in remitted depressed patients receiving MBCT and CT. Decentering and dysfunctional attitudes were assessed as treatment-specific process markers. Method: Participants in remission from Major Depressive Disorder (MDD; N = 166) were randomized to 8 weeks of either MBCT (N = 82) or CT (N = 84) and were followed for 24 months, with process markers measured every 3 months. Attendance in both treatments was high (6.3/8 session) and treatment fidelity and competence were evaluated. Relapse was defined as a return of symptoms meeting the criteria for major depression on Module A of the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders (SCID). Results: Intention-to-treat analyses indicated no differences between MBCT and CT in either rates of relapse to MDD or time to relapse across 24 months of follow up. Both groups experienced significant increases in decentering and participants in CT reported greater reductions in dysfunctional attitudes. Within both treatments, participants who relapsed evidenced lower decentering scores than those who stayed well over the follow up. Conclusions: This is the first study to directly compare relapse prophylaxis following MBCT and CT directly. The lack of group differences in time to relapse supports the view that both interventions are equally effective and that increases in decentering achieved via either treatment are associated with greater protection. These findings lend credence to Teasdale et al.’s (2002) contention that, even though they may be taught through dissimilar methods, CT and MBCT help participants develop similar metacognitive skills for the regulation of distressing thoughts and emotions.
Objective: Both Mindfulness Based Cognitive Therapy (MBCT) and Cognitive Therapy (CT) enhance self-management of prodromal symptoms associated with depressive relapse, albeit through divergent therapeutic procedures. We evaluated rates of relapse in remitted depressed patients receiving MBCT and CT. Decentering and dysfunctional attitudes were assessed as treatment-specific process markers. Method: Participants in remission from Major Depressive Disorder (MDD; N = 166) were randomized to 8 weeks of either MBCT (N = 82) or CT (N = 84) and were followed for 24 months, with process markers measured every 3 months. Attendance in both treatments was high (6.3/8 session) and treatment fidelity and competence were evaluated. Relapse was defined as a return of symptoms meeting the criteria for major depression on Module A of the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders (SCID). Results: Intention-to-treat analyses indicated no differences between MBCT and CT in either rates of relapse to MDD or time to relapse across 24 months of follow up. Both groups experienced significant increases in decentering and participants in CT reported greater reductions in dysfunctional attitudes. Within both treatments, participants who relapsed evidenced lower decentering scores than those who stayed well over the follow up. Conclusions: This is the first study to directly compare relapse prophylaxis following MBCT and CT directly. The lack of group differences in time to relapse supports the view that both interventions are equally effective and that increases in decentering achieved via either treatment are associated with greater protection. These findings lend credence to Teasdale et al.’s (2002) contention that, even though they may be taught through dissimilar methods, CT and MBCT help participants develop similar metacognitive skills for the regulation of distressing thoughts and emotions.
In this 2-year action research study, 33 university professors attended a 4-day faculty seminar titled “Mindfulness Meditation in Teaching,” which included guided insight meditation, dialogic inquiry, and action planning. Participants generated and committed to 26 novel methods for integrating mindfulness practice with teaching, research, and service. These practices grouped into four areas including mindful grading and assessment, awareness of students in the classroom, practicing mindfulness in and out of the classroom, and cultivating self-awareness in teaching. A mixed-methods analysis of transformative learning illustrates three fundamental shifts in perspectives and behaviors: balancing expertise with a “beginner’s mind” approach for greater innovative capacity, deepening appreciation for subject matter and communion with students, supporting a genuine sense of community across academic silos, and advocating for a more mindful university culture through six new university-wide initiatives.
The American Medical Association defines an "impaired physicain" as one who is unable to fulfill professional or personal responsibilities because of psychiatric illness, alcoholism, or drug dependency.1 Although this definition addresses only substance abuse and mental illness, medical problems that affect judgment and performance could compromise the ability to provide reasonable medical care, thus causing impairment. Likewise, issues surrounding clinical competency, such as medical knowledge, medical judgment, and clinical decision making, can compromise judgment and performance.
Mindfulness-based cognitive therapy (MBCT) may be helpful in preventing relapse in those with three or more depressive episodes. Recent research suggests it may also benefit those who have experienced fewer previous episodes of depression. If confirmed, this raises challenges of how MBCT is offered, accessed and supported.
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