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The brain and the cardiovascular system influence each other during the processing of emotion. The study of the interactions of these systems during emotion regulation has been limited in human functional neuroimaging, despite its potential importance for physical health. We have previously reported that mental expertise in cultivation of compassion alters the activation of circuits linked with empathy and theory of mind in response to emotional stimuli. Guided by the finding that heart rate increases more during blocks of compassion meditation than neutral states, especially for experts, we examined the interaction between state (compassion vs. neutral) and group (novice, expert) on the relation between heart rate and BOLD signal during presentation of emotional sounds presented during each state. Our findings revealed that BOLD signal in the right middle insula showed a significant association with heart rate (HR) across state and group. This association was stronger in the left middle/posterior insula when experts were compared to novices. The positive coupling of HR and BOLD was higher within the compassion state than within the neutral state in the dorsal anterior cingulate cortex for both groups, underlining the role of this region in the modulation of bodily arousal states. This state effect was stronger for experts than novices in somatosensory cortices and the right inferior parietal lobule (group by state interaction). These data confirm that compassion enhances the emotional and somatosensory brain representations of others' emotions, and that this effect is modulated by expertise. Future studies are needed to further investigate the impact of compassion training on these circuits.
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BACKGROUND: Studies using electroencephalogram (EEG) measures of activation asymmetry have reported differences in anterior asymmetry between depressed and nondepressed subjects. Several studies have suggested reciprocal relations between measures of anterior and posterior activation asymmetries. We hypothesized that depressed subjects would fail to show the normal activation of posterior right hemisphere regions in response to an appropriate cognitive challenge.
METHODS: EEG activity was recorded from 11 depressed and 19 nondepressed subjects during the performance of psychometrically matched verbal (word finding) and spatial (dot localization) tasks. Band power was extracted from all epochs of artifact-free data and averaged within each condition. Task performance was also assessed.
RESULTS: Depressed subjects showed a specific deficit in the performance of the spatial task, whereas no group differences were evident on verbal performance. In posterior scalp regions, nondepressed controls had a pattern of relative left-sided activation during the verbal task and relative right-sided activation during the spatial task. In contrast, depressed subjects failed to show activation in posterior right hemisphere regions during spatial task performance.
CONCLUSIONS: These findings suggest that deficits in right posterior functioning underlie the observed impairments in spatial functioning among depressed subjects.
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BACKGROUND: The frontal lobe has been crucially involved in the neurobiology of major depression, but inconsistencies among studies exist, in part due to a failure of considering modulatory variables such as symptom severity, comorbidity with anxiety, and distinct subtypes, as codeterminants for patterns of brain activation in depression.
METHODS: Resting electroencephalogram was recorded in 38 unmedicated subjects with major depressive disorder and 18 normal comparison subjects, and analyzed with a tomographic source localization method that computes the cortical three-dimensional distribution of current density for standard electroencephalogram frequency bands. Symptom severity and anxiety were measured via self-report and melancholic features via clinical interview.
RESULTS: Depressed subjects showed more excitatory (beta3, 21.5-30.0 Hz) activity in the right superior and inferior frontal lobe (Brodmann's area 9/10/11) than comparison subjects. In melancholic subjects, this effect was particularly pronounced for severe depression, and right frontal activity correlated positively with anxiety. Depressed subjects showed posterior cingulate and precuneus hypoactivity.
CONCLUSIONS: While confirming prior results implicating right frontal and posterior cingulate regions, this study highlights the importance of depression severity, anxiety, and melancholic features in patterns of brain activity accompanying depression.
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Fragile X syndrome (FXS) is the most commonly known genetic disorder associated with autism spectrum disorder (ASD). Overlapping features in these populations include gaze aversion, communication deficits, and social withdrawal. Although the association between FXS and ASD has been well documented at the behavioral level, the underlying neural mechanisms associated with the social/emotional deficits in these groups remain unclear. We collected functional brain images and eye-gaze fixations from 9 individuals with FXS and 14 individuals with idiopathic ASD, as well as 15 typically developing (TD) individuals, while they performed a facial-emotion discrimination task. The FXS group showed a similar yet less aberrant pattern of gaze fixations compared with the ASD group. The FXS group also showed fusiform gyrus (FG) hypoactivation compared with the TD control group. Activation in FG was strongly and positively associated with average eye fixation and negatively associated with ASD characteristics in the FXS group. The FXS group displayed significantly greater activation than both the TD control and ASD groups in the left hippocampus (HIPP), left superior temporal gyrus (STG), right insula (INS), and left postcentral gyrus (PCG). These group differences in brain activation are important as they suggest unique underlying face-processing neural circuitry in FXS versus idiopathic ASD, largely supporting the hypothesis that ASD characteristics in FXS and idiopathic ASD reflect partially divergent impairments at the neural level, at least in FXS individuals without a co-morbid diagnosis of ASD.
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The experience of aversion is shaped by multiple physiological and psychological factors including one's expectations. Recent work has shown that expectancy manipulation can alter perceptions of aversive events and concomitant brain activation. Accruing evidence indicates a primary role of altered expectancies in the placebo effect. Here, we probed the mechanism by which expectation attenuates sensory taste transmission by examining how brain areas activated by misleading information during an expectancy period modulate insula and amygdala activation to a highly aversive bitter taste. In a rapid event-related fMRI design, we showed that activations in the rostral anterior cingulate cortex (rACC), orbitofrontal cortex (OFC), and dorsolateral prefrontal cortex to a misleading cue that the taste would be mildly aversive predicted decreases in insula and amygdala activation to the highly aversive taste. OFC and rACC activation to the misleading cue were also associated with less aversive ratings of that taste. Additional analyses revealed consistent results demonstrating functional connectivity among the OFC, rACC, and insula. Altering expectancies of upcoming aversive events are shown here to depend on robust functional associations among brain regions implicated in prior work on the placebo effect.
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Buddhist meditation practice is perceived as non-relational. Yet a serious meditator develops an intimacy with herself that is an asset to being in a healthy relationship. In this essay, using composite profiles of patients, I pursue my interest in relationships and family life as a path to mental health and a home to enlightened experience. The intimacy of a relationship with oneself, with another and within family provides a container that may enable us to let go of our fixed sense of self.
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Buddhism has made its way into American popular culture, particularly within the arena of death and dying. The growing influence of Buddhism on the American way of dying has been fostered through its connection with the American hospice movement. This paper describes the developing contact between Buddhism and hospice and documents the efforts of several prominent Buddhist organizations to revolutionize American death practices. The Buddhist approach to death has captured the interest of an American public attracted to its nonsectarian language of spirituality and pragmatic techniques for dealing with death.
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The distinct definition of stress postulated by Buddhist and Western cultures is the foundation for their different coping styles, traditions, and practices. Dukkha, derived from Buddha's Four Noble Truths, appears on the surface similar to psychological stress. Further examination of the Eastern cosmology yields a fundamental disagreement between Western psychological theory and Buddhists' conception of suffering and stress related to incorporating reality into the formulation. Cross-cultural research on traditional approaches to coping with occupational stress found that problem solving was the most effective strategy, however in Thailand meditation helped nurses cope with a variety of stressors such as dealing with death and dying.
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The category "experience" has played a cardinal role in modern studies of Buddhism. Few scholars seem to question the notion that Buddhist monastic practice, particularly meditation, is intended first and foremost to inculcate specific religious or "mystical" experiences in the minds of practitioners. Accordingly, a wide variety of Buddhist technical terms pertaining to the "stages on the path" are subject to a phenomenological hermeneutic-they are interpreted as if they designated discrete "states of consciousness" experienced by historical individuals in the course of their meditative practice. This paper argues that the role of experience in the history of Buddhism has been greatly exaggerated in contemporary scholarship. Both historical and ethnographic evidence suggests that the privileging of experience may well be traced to certain twentieth-century Asian reform movements, notably those that urge a "return" to zazen or vipassanā meditation, and these reforms were profoundly influenced by religious developments in the West. Even in the case of those contemporary Buddhist schools that do unambiguously exalt meditative experience, ethnographic data belies the notion that the rhetoric of meditative states functions ostensively. While some adepts may indeed experience "altered states" in the course of their training, critical analysis shows that such states do not constitute the reference points for the elaborate Buddhist discourse pertaining to the "path." Rather, such discourse turns out to function ideologically and performatively-wielded more often than not in the interests of legitimation and institutional authority.
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<p>The purpose of this paper is to provide an overview of how Buddhist philosophy can be applied in the treatment of individuals with substance abuse problems (alcohol, smoking, and illicit drug use) and other addictive behaviors (e.g., compulsive eating and gambling). First I describe the background of my own interest in meditation and Buddhist psychology, followed by a brief summary of my prior research on the effects of meditation on alcohol consumption in heavy drinkers. In the second section, I outline some of the basic principles of Buddhist philosophy that provide a theoretical underpinning for defining addiction, how it develops, and how it can be alleviated. The third and final section presents four principles within Buddhist psychology that have direct implications for the cognitive-behavioral treatment of addictive behavior: mindfulness meditation, the Middle Way philosophy, the Doctrine of Impermanence, and compassion and the Eightfold Noble Path. Clinical interventions and case examples are described for each of these four principles based on my research and clinical practice with clients seeking help for resolving addictive behavior problems.</p>
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(RNS) The mindfulness movement has seeped into Silicon Valley, Capitol Hill, and even the United States Military Academy at West Point. Next stop: the voting booth. By Daniel Burke.
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<p>Environmentalists have been criticizing the ethics of business people concerning the natural environment. Citing Thomas Berry as an example, this paper attempts to bring his three abstract values (presence, subjectivity, and communion) closer to the understanding of the average business person through meditation. The introduction describes business ethics in terms of relationships to the individual, or the ethical ‘I’ to the natural environment, or the ethical ‘You’ and to interpersonal relationships, or the ethical ‘We.’ Meditation is also defined, according to Webster's Third New International Dictionary (1986), as a meditative experience together with a period of reflection and small-group discussion. More specifically, meditation takes on three forms. Part one describes nondiscursive meditation in the context of what Berry means by presence. The problem addressed here is how to meet and cultivate the ethical ‘I.’ Part two will deal with semidiscursive meditation in the context of what Berry means by subjectivity, or the ethical ‘I’ in relation to the earth. The earth then becomes the ethical ‘You.’ Part three will deal with Berry's definition of communion, or the ethical ‘We.’ The practice of discursive meditation gradually leads to what Thomas Berry calls a renewed ‘visionary experience.’ The article concludes with a redefinition of business ethics in terms of our relationships to ourselves, as human persons, to the earth as our living environment, and to each other as members of the human community. The redefinition of our relationships through meditation is ‘visionary,’ or a new ‘paradigm,’ that, hopefully, will lead to the renewed ethical practice that other environmentalists are also advocating, for example, Arnold Berleant.</p>
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