Muscle electrical activity, or "electromyogenic" (EMG) artifact, poses a serious threat to the validity of electroencephalography (EEG) investigations in the frequency domain. EMG is sensitive to a variety of psychological processes and can mask genuine effects or masquerade as legitimate neurogenic effects across the scalp in frequencies at least as low as the alpha band (8-13 Hz). Although several techniques for correcting myogenic activity have been described, most are subjected to only limited validation attempts. Attempts to gauge the impact of EMG correction on intracerebral source models (source "localization" analyses) are rarer still. Accordingly, we assessed the sensitivity and specificity of one prominent correction tool, independent component analysis (ICA), on the scalp and in the source-space using high-resolution EEG. Data were collected from 17 participants while neurogenic and myogenic activity was independently varied. Several protocols for classifying and discarding components classified as myogenic and non-myogenic artifact (e.g., ocular) were systematically assessed, leading to the exclusion of one-third to as much as three-quarters of the variance in the EEG. Some, but not all, of these protocols showed adequate performance on the scalp. Indeed, performance was superior to previously validated regression-based techniques. Nevertheless, ICA-based EMG correction exhibited low validity in the intracerebral source-space, likely owing to incomplete separation of neurogenic from myogenic sources. Taken with prior work, this indicates that EMG artifact can substantially distort estimates of intracerebral spectral activity. Neither regression- nor ICA-based EMG correction techniques provide complete safeguards against such distortions. In light of these results, several practical suggestions and recommendations are made for intelligently using ICA to minimize EMG and other common artifacts.
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Meditation is approached as a technique for the activation of religious experience. Various theories used in psychology to explain the cognitive changes brought about by meditation are briefly reviewed. Of these, the role-theory of Sundén fits best the structure and function of various meditation methods in religious history. A small scale laboratory experiment is reported, designed for the purpose of testing the predictive validity of role-theory. The results make it possible to specify the theory's contribution and limitation.
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<p>Numerous studies have noted that depth psychology has been one of the most prevalent frameworks for the interpretation of Buddhism in the West. Similarly, many commentators have bemoaned the assimilation of Buddhist thought and practice into western psychological discourse. This paper argues, however, that such critiques often fail to adequately distinguish between reductive approaches that reduce Buddhist phenomena to psychological states, and dialogical enterprises that utilize psychology as a tool to extend, through dialogue, the aims of Buddhism. Through a focus on what I identify as "West Coast Vipassana," a distinctive current within the American Insight Community, I examine attempts to incorporate personal life into Buddhist practice. While there are numerous incidents of the reductive approach in the Buddhist-psychology interface, I interpret West Coast Vipassana as providing a more legitimate and dialogical or "skillful means" approach to Buddhist practice in a contemporary Western climate.</p>
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- Classical Buddhist Contemplation Practices,
- Buddhist Contemplation by Applied Subject,
- Contemplation by Applied Subject,
- Contemplation by Tradition,
- Psychology and Buddhist Contemplation,
- Science and Buddhist Contemplation,
- Practices of Buddhist Contemplation,
- Insight (vipashyana, lhaktong),
- Psychology and Contemplation,
- Science and Contemplation,
- Buddhist Contemplation
We present a novel weighted Fourier series (WFS) representation for cortical surfaces. The WFS representation is a data smoothing technique that provides the explicit smooth functional estimation of unknown cortical boundary as a linear combination of basis functions. The basic properties of the representation are investigated in connection with a self-adjoint partial differential equation and the traditional spherical harmonic (SPHARM) representation. To reduce steep computational requirements, a new iterative residual fitting (IRF) algorithm is developed. Its computational and numerical implementation issues are discussed in detail. The computer codes are also available at http://www.stat.wisc.edu/-mchung/softwares/weighted.SPHARM/weighted-SPHARM.html. As an illustration, the WFS is applied i n quantifying the amount ofgray matter in a group of high functioning autistic subjects. Within the WFS framework, cortical thickness and gray matter density are computed and compared.
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<p>This article opens by noting that positive emotions do not fit existing models of emotions. Consequently, a new model is advanced to describe the form and function of a subset of positive emotions, including joy, interest, contentment, and love. This new model posits that these positive emotions serve to broaden an individual's momentary thought-action repertoire, which in turn has the effect of building that individual's physical, intellectual, and social resources. Empirical evidence to support this broaden-and-build model of positive emotions is reviewed, and implications for emotion regulation and health promotion are discussed.</p>
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- Practices Specific to Tibetan Buddhism,
- Buddhist Contemplation by Applied Subject,
- Contemplation by Tradition,
- Art and Buddhist Contemplation,
- Kalachakra,
- Visual art and Buddhist Contemplation,
- Practices of Buddhist Contemplation,
- Generation phase (utpattikrama, kyerim),
- Deity yoga (devata-yoga, lhé nenjor),
- Buddhist Contemplation
<p>Wheel of Time is filmmaker Werner Herzog's gorgeously photographed look at the largest Buddhist ritual in Bodh Gaya, India.</p>
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Do people benefit when they think their partner has made a sacrifice for the relationship? In a multimethod study of 80 couples, we examined whether people can detect when their partner suppresses their emotions and if perceived partner suppression is costly for the recipient of sacrifice. When people listened to their partner recall an important sacrifice in the lab and when people thought their partner sacrificed in daily life, they thought that their partner was less authentic the more they perceived them to have suppressed their emotions. In turn, perceived partner inauthenticity during sacrifice was associated with poorer personal well-being and relationship quality. These effects persisted over time with perceived partner suppression predicting poorer relationship quality 3 months later. The results were independent from the influence of an actor’s projection of their own suppression and their partner’s actual suppression. Implications for research on emotion regulation and close relationships are discussed.
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At the turn of the twentieth century, the mind-cure movement emphasized the healing power of positive emotions and beliefs. William James defended mind-cure during the Massachusetts legislature's debates on licensing physicians in 1894 and 1898. In The Varieties of Religious Experience (1902) he used the movement's therapeutic claims to illustrate the typically American, practical turn of the "religion of healthy-mindedness." Varieties sympathetically surveys mind-cure literature, but also criticizes healthy-minded religion for its limited range and refusal to confront tragedy and radical evil. Many of today's mind/body therapies continue the mind-cure tradition and retain the limitations that James noted.
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Stephen Cope asked 25 yoga and meditation teachers to share their "tales from the path"--their thoughts on how the long-term practice of yoga and meditation has changed their lives. The result is a unique collection of stories offering insight and inspiration for everyone seeking a more satisfying life.
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<p>Bringing together leading scholars, scientists, and clinicians, this compelling volume explores how therapists can cultivate wisdom and compassion in themselves and their clients. Chapters describe how combining insights from ancient contemplative practices and modern research can enhance the treatment of anxiety, depression, trauma, substance abuse, suicidal behavior, couple conflict, and parenting stress. Seamlessly edited, the book features numerous practical exercises and rich clinical examples. It examines whether wisdom and compassion can be measured objectively, what they look like in t.</p>
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