Monitoring and manipulating the human brain: new neuroscience technologies and their ethical implications

Discusses the use of new neuroscience technologies in monitoring and manipulating brain function, as of May 2004. History of modern brain imaging; Implications of neuroimaging for medical ethics; Factors that contributed to brain enhancement

Brain Research and Neuroethics

In the past year neuroethics has begun to command the attention of neuroscientists, ethicists and journalists. Ethical questions associated with new knowledge of the human brain have received extensive coverage in the popular press with cover stories in The Economist and The New Scientist. There has also been a burst of discussion in the scientific literature (Farah, 2002; Wolpe, 2003), and a number of professional conferences have recently focused attention on the field. The current capability of neuroscience to monitor and alter brain function has profound ethical implications, which scientists and the public have only begun to examine

Renegotiating Identities: Experiences of Loss and Recovery for Women With Bipolar Disorder

Along with major changes in mood, people living with bipolar disorder (BD) often experience recurrent hospital admissions, feelings of failure and hopelessness, social stigma, underemployment, and a loss of independence. In this study we explored the experiences of loss, coping, and recovery in a community sample of women living with BD. Ten women each participated in a semistructured interview. We used the constant comparative method to analyze the data. We identified three themes from the data: identity bound by the diagnostic label, multidimensional effects of the bipolar disorder identity, and strategies for renegotiating identity. For these women, recovery involved an ongoing process of balancing their sick self with their healthy self. The findings contribute to conceptualizations of loss, coping mechanisms for dealing with loss, and the relevance of loss in recovery for people living at the margins with BD

Neurocognitive Enhancement: what can we do and what should we do?

Our growing ability to alter brain function can be used to enhance the mental processes of normal individuals as well as to treat mental dysfunction in people who are ill. The prospect of neurocognitive enhancement raises many issues about what is safe, fair and otherwise morally acceptable. This article resulted from a meeting on neurocognitive enhancement that was held by the authors. Our goal is to review the state of the art in neurocognitive enhancement, its attendant social and ethical problems, and the ways in which society can address these problems

BNCI systems as a potential assistive technology: ethical issues and participatory research in the BrainAble project

This paper highlights aspects related to current research and thinking about ethical issues in relation to Brain Computer Interface (BCI) and Brain-Neuronal Computer Interfaces (BNCI) research through the experience of one particular project, BrainAble, which is exploring and developing the potential of these technologies to enable people with complex disabilities to control computers. It describes how ethical practice has been developed both within the multidisciplinary research team and with participants. Results: The paper presents findings in which participants shared their views of the project prototypes, of the potential of BCI/BNCI systems as an assistive technology, and of their other possible applications. This draws attention to the importance of ethical practice in projects where high expectations of technologies, and representations of “ideal types” of disabled users may reinforce stereotypes or drown out participant “voices”. Conclusions: Ethical frameworks for research and development in emergent areas such as BCI/BNCI systems should be based on broad notions of a “duty of care” while being sufficiently flexible that researchers can adapt project procedures according to participant needs. They need to be frequently revisited, not only in the light of experience, but also to ensure they reflect new research findings and ever more complex and powerful technologies

Alien limb in the corticobasal syndrome: phenomenological characteristics and relationship to apraxia

Funder: National Institute for Health Research; doi: http://dx.doi.org/10.13039/501100000272Funder: James S. McDonnell Foundation; doi: http://dx.doi.org/10.13039/100000913Abstract: Alien limb refers to movements that seem purposeful but are independent of patients’ reported intentions. Alien limb often co-occurs with apraxia in the corticobasal syndrome, and anatomical and phenomenological comparisons have led to the suggestion that alien limb and apraxia may be causally related as failures of goal-directed movements. Here, we characterised the nature of alien limb symptoms in patients with the corticobasal syndrome (n = 30) and their relationship to limb apraxia. Twenty-five patients with progressive supranuclear palsy Richardson syndrome served as a disease control group. Structured examinations of praxis, motor function, cognition and alien limb were undertaken in patients attending a regional specialist clinic. Twenty-eight patients with corticobasal syndrome (93%) demonstrated significant apraxia and this was often asymmetrical, with the left hand preferentially affected in 23/30 (77%) patients. Moreover, 25/30 (83%) patients reported one or more symptoms consistent with alien limb. The range of these phenomena was broad, including changes in the sense of ownership and control as well as unwanted movements. Regression analyses showed no significant association between the severity of limb apraxia and either the occurrence of an alien limb or the number of alien limb phenomena reported. Bayesian estimation showed a low probability for a positive association between alien limb and apraxia, suggesting that alien limb phenomena are not likely to be related to severity apraxia. Our results shed light on the phenomenology of these disabling and as yet untreatable clinical features, with relevance to theoretical models of voluntary action

Alien limb in the corticobasal syndrome: phenomenological characteristics and relationship to apraxia

Funder: National Institute for Health Research; doi: http://dx.doi.org/10.13039/501100000272Funder: James S. McDonnell Foundation; doi: http://dx.doi.org/10.13039/100000913Abstract: Alien limb refers to movements that seem purposeful but are independent of patients’ reported intentions. Alien limb often co-occurs with apraxia in the corticobasal syndrome, and anatomical and phenomenological comparisons have led to the suggestion that alien limb and apraxia may be causally related as failures of goal-directed movements. Here, we characterised the nature of alien limb symptoms in patients with the corticobasal syndrome (n = 30) and their relationship to limb apraxia. Twenty-five patients with progressive supranuclear palsy Richardson syndrome served as a disease control group. Structured examinations of praxis, motor function, cognition and alien limb were undertaken in patients attending a regional specialist clinic. Twenty-eight patients with corticobasal syndrome (93%) demonstrated significant apraxia and this was often asymmetrical, with the left hand preferentially affected in 23/30 (77%) patients. Moreover, 25/30 (83%) patients reported one or more symptoms consistent with alien limb. The range of these phenomena was broad, including changes in the sense of ownership and control as well as unwanted movements. Regression analyses showed no significant association between the severity of limb apraxia and either the occurrence of an alien limb or the number of alien limb phenomena reported. Bayesian estimation showed a low probability for a positive association between alien limb and apraxia, suggesting that alien limb phenomena are not likely to be related to severity apraxia. Our results shed light on the phenomenology of these disabling and as yet untreatable clinical features, with relevance to theoretical models of voluntary action

The clinical use of Subjective Units of Distress scales (SUDs) in child mental health assessments: A thematic evaluation.

This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Mental Health on 4th July 2017, available online: https://doi.org/10.1080/09638237.2017.1340616Background: Despite the ubiquitous use of Subjective Units of Distress scales (SUDs) in mental health settings to establish levels of distressing emotion, there has been little empirical research in this area. SUDs are commonly used in therapy and assessments, and are a particularly useful tool for establishing current and previous levels of distress in children and young people. Aims: To explore the use of the SUD analogue rating scale in initial child mental health assessments to better understand its application in this context. Method: The data corpus consisted of 28 naturally-occurring video recordings of children and young people attending their first assessment appointment at Child and Adolescent Mental Health Services (CAMHS). A thematic analysis was utilised to explore the specific interactional use of SUDs. Results: Four themes were identified; recency, longevity, context and miscommunication. The first three themes were found to supplement the child’s emotional score on the scale and were important in establishing the necessity for further therapeutic support. Miscommunication as a theme highlighted the need for clarity when using SUDs with children and young people. Conclusions: Recommendations were suggested for practitioners working with children and young people relating to the extended use of rating scales in clinical assessments

Cross validation of bi-modal health-related stress assessment

This study explores the feasibility of objective and ubiquitous stress assessment. 25 post-traumatic stress disorder patients participated in a controlled storytelling (ST) study and an ecologically valid reliving (RL) study. The two studies were meant to represent an early and a late therapy session, and each consisted of a "happy" and a "stress triggering" part. Two instruments were chosen to assess the stress level of the patients at various point in time during therapy: (i) speech, used as an objective and ubiquitous stress indicator and (ii) the subjective unit of distress (SUD), a clinically validated Likert scale. In total, 13 statistical parameters were derived from each of five speech features: amplitude, zero-crossings, power, high-frequency power, and pitch. To model the emotional state of the patients, 28 parameters were selected from this set by means of a linear regression model and, subsequently, compressed into 11 principal components. The SUD and speech model were cross-validated, using 3 machine learning algorithms. Between 90% (2 SUD levels) and 39% (10 SUD levels) correct classification was achieved. The two sessions could be discriminated in 89% (for ST) and 77% (for RL) of the cases. This report fills a gap between laboratory and clinical studies, and its results emphasize the usefulness of Computer Aided Diagnostics (CAD) for mental health care

Illusory temporal binding in meditators

We investigate conditions in which more accurate metacognition may lead to greater susceptibility to illusion; and thus conditions under which mindfulness meditation may lead to less accurate perceptions. Specifically, greater awareness of intentions may lead to an illusory compression of time between a voluntary action and its outcome (“intentional binding”). Here we report that experienced Buddhist mindfulness meditators rather than non-meditators display a greater illusory shift of the timing of an outcome towards an intentional action. Mindfulness meditation involves awareness of causal connections between different mental states, including intentions. We argue that this supports improvements in metacognition targeted at motor intentions. Changes in metacognitive ability may result in an earlier and less veridical experience of the timing of action outcomes either through increased access to sensorimotor pre-representations of an action outcome or by affording greater precision to action timing judgements. Furthermore, as intentional binding is an implicit measure of the sense of agency, these results also provide evidence that mindfulness meditators experience a stronger sense of agency