An appraisal-based chain-of-emotion architecture for affective language model game agents.

The development of believable, natural, and interactive digital artificial agents is a field of growing interest. Theoretical uncertainties and technical barriers present considerable challenges to the field, particularly with regards to developing agents that effectively simulate human emotions. Large language models (LLMs) might address these issues by tapping common patterns in situational appraisal. In three empirical experiments, this study tests the capabilities of LLMs to solve emotional intelligence tasks and to simulate emotions. It presents and evaluates a new Chain-of-Emotion architecture for emotion simulation within video games, based on psychological appraisal research. Results show that it outperforms control LLM architectures on a range of user experience and content analysis metrics. This study therefore provides early evidence of how to construct and test affective agents based on cognitive processes represented in language models.

The relationship between environmentally induced emotion and memory for a naturalistic virtual experience.

Emotional stimuli (e.g. words, images) are often remembered better than neutral stimuli. However, little is known about how memory is affected by an environmentally induced emotional state (without any overtly emotional occurrences) - the focus of this study. Participants were randomly assigned to discovery (n = 305) and replication (n = 306) subsamples and viewed a desktop virtual environment before rating their emotions and completing objective (i.e. item, temporal-order, duration) and subjective (e.g. vividness, sensory detail, coherence) memory measures. In both samples, a Partial Least Squares Correlation analysis showed that an emotional state characterised by high negative emotion (i.e. threat, fear, anxiety) and arousal was reliably associated with better memory in both objective (i.e. item) and subjective (i.e. vividness and sensory detail) domains. No reliable associations were observed for any temporal memory measures (objective or subjective). Thus, an environmentally induced state of negative emotion corresponds with enhanced memory for indices of episodic memory pertaining to "what" happened, but not necessarily "when" it happened.

Right needle, right patient, right time? A national flash-mob audit of thromboprophylaxis in palliative care.

BACKGROUND: The prevention of hospital associated thrombosis in palliative care remains controversial yet many countries recommend the documented risk assessment and where appropriate pharmacological prophylaxis of inpatients with advanced cancer. AIM: To audit adherence to national guidelines which require hospitalised patients to be risk assessed and receive appropriate thromboprophylaxis. DESIGN: A one day "flash-mob" audit across multiple clinical inpatient sites across the United Kingdom. SETTING/PARTICIPANTS: Inpatients receiving palliative care within hospitals, hospices and specialist palliative care units across the United Kingdom. RESULTS: Data were collected from 1125 patients (514 hospital and 611 hospice/specialist palliative care units). Appropriate thromboprophylaxis was observed in 90 % of hospital and 90 % hospice/specialist palliative care units. Documented risk assessment was only found in 79 % and 71 % of patient notes respectively. Pharmacological thromboprophylaxis was contraindicated in 88 % of hospice/specialist palliative care unit patients due to bleeding risk or receiving end-of-life care. Twenty-four percent of patients in hospital had contraindications due to receiving end of life care, bleeding risk and thrombocytopenia. Patients in hospice/specialist palliative care units were of poorer performance status prior to admission with a history of gradual deterioration. Hospitalised patients were more likely to have been admitted following an acute deterioration of previous good performance status. CONCLUSION: Thromboprophylaxis guidelines were followed correctly for the majority of patients. There were considerable differences in the demographics of patients according to place of admission. Patients admitted to hospice/specialist palliative care units were sicker and had more contraindications to prophylaxis than those admitted to hospital. Thromboprophylaxis focused research data conducted in hospices is unlikely to be applicable to the care of palliative care patients admitted acutely to hospital.

The underwood project: A virtual environment for eliciting ambiguous threat.

Threatening environments can be unpredictable in many different ways. The nature of threats, their timing, and their locations in a scene can all be uncertain, even when one is acutely aware of being at risk. Prior research demonstrates that both temporal unpredictability and spatial uncertainty of threats elicit a distinctly anxious psychological response. In the paradigm presented here, we further explore other facets of ambiguous threat via an environment in which there are no concrete threats, predictable or otherwise, but which nevertheless elicits a building sense of danger. By incorporating both psychological research and principles of emotional game design, we constructed this world and then tested its effects in three studies. In line with our goals, participants experienced the environment as creepy and unpredictable. Their subjective and physiological response to the world rose and fell in line with the presentation of ambiguously threatening ambient cues. Exploratory analyses further suggest that this ambiguously threatening experience influenced memory for the virtual world and its underlying narrative. Together the data demonstrate that naturalistic virtual worlds can effectively elicit a multifaceted experience of ambiguous threat with subjective and cognitive consequences.

Defining ethical challenge(s) in healthcare research: a rapid review.

BACKGROUND: Despite its ubiquity in academic research, the phrase 'ethical challenge(s)' appears to lack an agreed definition. A lack of a definition risks introducing confusion or avoidable bias. Conceptual clarity is a key component of research, both theoretical and empirical. Using a rapid review methodology, we sought to review definitions of 'ethical challenge(s)' and closely related terms as used in current healthcare research literature. METHODS: Rapid review to identify peer-reviewed reports examining 'ethical challenge(s)' in any context, extracting data on definitions of 'ethical challenge(s)' in use, and synonymous use of closely related terms in the general manuscript text. Data were analysed using content analysis. Four databases (MEDLINE, Philosopher's Index, EMBASE, CINAHL) were searched from April 2016 to April 2021. RESULTS: 393 records were screened, with 72 studies eligible and included: 53 empirical studies, 17 structured reviews and 2 review protocols. 12/72 (17%) contained an explicit definition of 'ethical challenge(s), two of which were shared, resulting in 11 unique definitions. Within these 11 definitions, four approaches were identified: definition through concepts; reference to moral conflict, moral uncertainty or difficult choices; definition by participants; and challenges linked to emotional or moral distress. Each definition contained one or more of these approaches, but none contained all four. 68/72 (94%) included studies used terms closely related to synonymously refer to 'ethical challenge(s)' within their manuscript text, with 32 different terms identified and between one and eight different terms mentioned per study. CONCLUSIONS: Only 12/72 studies contained an explicit definition of 'ethical challenge(s)', with significant variety in scope and complexity. This variation risks confusion and biasing data analysis and results, reducing confidence in research findings. Further work on establishing acceptable definitional content is needed to inform future bioethics research.

Real-world ethics in palliative care: A systematic review of the ethical challenges reported by specialist palliative care practitioners in their clinical practice.

BACKGROUND: Ethical issues arise daily in the delivery of palliative care. Despite much (largely theoretical) literature, evidence from specialist palliative care practitioners about day-to-day ethical challenges has not previously been synthesised. This evidence is crucial to inform education and adequately support staff. AIM: To synthesise the evidence regarding the ethical challenges which specialist palliative care practitioners encounter during clinical practice. DESIGN: Systematic review with narrative synthesis (PROSPERO registration CRD42018105365). Quality was dual-assessed using the Mixed-Methods Appraisal Tool. Tabulation, textural description, concept mapping and thematic synthesis were used to develop and present the narrative. DATA SOURCES: Seven databases (MEDLINE, Philosopher's Index, EMBASE, PsycINFO, LILACS, Web of Science and CINAHL) were searched from inception to December 2019 without language limits. Eligible papers reported original research using inductive methods to describe practitioner-reported ethical challenges. RESULTS: A total of 8074 records were screened. Thirteen studies from nine countries were included. Challenges were organised into six themes: application of ethical principles; delivering clinical care; working with families; engaging with institutional structures and values; navigating societal values and expectations; philosophy of palliative care. Challenges related to specific scenarios/contexts rather than the application of general ethical principles, and occurred at all levels (bedside, institution, society, policy). CONCLUSION: Palliative care practitioners encounter a broad range of contextual ethical challenges, many of which are not represented in palliative care ethics training resources, for example, navigating institutional policies, resource allocation and inter-professional conflict. Findings have implications for supporting ethical practice and training practitioners. The lack of low- and middle- income country data needs addressing.

Palliative opioid use, palliative sedation and euthanasia: reaffirming the distinction.

We read with interest the extended essay published from Riisfeldt and are encouraged by an empirical ethics article which attempts to ground theory and its claims in the real world. However, such attempts also have real-world consequences. We are concerned to read the paper's conclusion that clinical evidence weakens the distinction between euthanasia and normal palliative care prescribing. This is important. Globally, the most significant barrier to adequate symptom control in people with life-limiting illness is poor access to opioid analgesia. Opiophobia makes clinicians reluctant to prescribe and their patients reluctant to take opioids that might provide significant improvements in quality of life. We argue that the evidence base for the safety of opioid prescribing is broader than that presented, restricting the search to palliative care literature produces significant bias as safety experience and literature for opioids and sedatives exists in many fields. This is not acknowledged in the synthesis presented. By considering additional evidence, we reject the need for agnosticism and reaffirm that palliative opioid prescribing is safe. Second, palliative sedation in a clinical context is a poorly defined concept covering multiple interventions and treatment intentions. We detail these and show that continuous deep palliative sedation (CDPS) is a specific practice that remains controversial globally and is not considered routine practice. Rejecting agnosticism towards opioids and excluding CDPS from the definition of routine care allows the rejection of Riisfeldt's headline conclusion. On these grounds, we reaffirm the important distinction between palliative care prescribing and euthanasia in practice.

Real-world ethics in palliative care: protocol for a systematic review of the ethical challenges reported by specialist palliative care practitioners in their clinical practice.

INTRODUCTION: Ethical issues arise daily in the delivery of palliative care. Despite much (largely theoretical) literature, evidence from specialist palliative care practitioners (SPCPs) about real-world ethical challenges has not previously been synthesised. This evidence is crucial to inform education and training and adequately support staff. The aim of this systematic review is to synthesise the evidence regarding the ethical challenges which SPCPs encounter during clinical practice. METHODS AND ANALYSIS: We will conduct a systematic review with narrative synthesis of empirical studies that use inductive methods to describe the ethical challenges reported by SPCPs. We will search multiple databases (MEDLINE, Philosopher's Index, EMBASE, PsycINFO, LILACS, WHOLIS, Web of Science and CINAHL) without time, language or geographical restrictions. Keywords will be developed from scoping searches, consultation with information specialists and reference to key systematic reviews in palliative care and bioethics. Reference lists of included studies will be hand-searched. 10% of retrieved titles and abstracts will be independently dual screened, as will all full text papers. Quality will be dual assessed using the Mixed-Methods Appraisal Tool (2018). Narrative synthesis following Popay et al (2006) will be used to synthesise findings. The strength of resulting recommendations will be assessed using the Grading of Recommendations Assessment, Development and Evaluation approach for qualitative evidence (GRADE-CERQual). ETHICS AND DISSEMINATION: As this review will include only published data, no specific ethical approval is required. We anticipate that the systematic review will be of interest to palliative care practitioners of all backgrounds and educators in palliative care and medical ethics. Findings will be presented at conferences and published open access in a peer-reviewed journal. TRIAL REGISTRATION NUMBER: CRD42018105365.

Tools Measuring Quality of Death, Dying, and Care, Completed after Death: Systematic Review of Psychometric Properties.

INTRODUCTION: Measuring the quality of care at the end of life and/or the quality of dying and death can be challenging. Some measurement tools seek to assess the quality of care immediately prior to death; others retrospectively assess, following death, the quality of end-of-life care. The comparative evaluation of the properties and application of the various instruments has been limited. OBJECTIVE: This systematic review identified and critically appraised the psychometric properties and applicability of tools used after death. METHOD: We conducted a systematic review according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines by systematically searching MEDLINE, Embase, CINAHL, and PsycINFO for relevant studies. We then appraised the psychometric properties and the quality of reporting of the psychometric properties of the identified tools using the COSMIN (Consensus-based Standards for the selection of health Measurement Instruments) checklist. The protocol of this systematic review has been registered on PROSPERO (CRD42016047296). RESULTS: The search identified 4751 studies. Of these, 33 met the inclusion criteria, reporting on the psychometric properties of 67 tools. These tools measured quality of care at the end of life (n = 35), quality of dying and death (n = 22), or both quality of care at the end of life and dying and death (n = 10). Most tools were completed by family carers (n = 57), with some also completed by healthcare professionals (HCPs) (n = 2) or just HCPs (n = 8). No single tool was found to be adequate across all the psychometric properties assessed. Two quality of care at the end of life tools-Care of the Dying Evaluation and Satisfaction with Care at the End of Life in Dementia-had strong psychometric properties in most respects. Two tools assessing quality of dying and death-the Quality of Dying and Death and the newly developed Staff Perception of End of Life Experience-had limited to moderate evidence of good psychometric properties. Two tools assessing both quality of care and quality of dying and death-the Quality Of Dying in Long-Term Care for cognitively intact populations and Good Death Inventory (Korean version)-had the best psychometric properties. CONCLUSION: Four tools demonstrated some promise, but no single tool was consistent across all psychometric properties assessed. All tools identified would benefit from further psychometric testing.

The prognostic role of circulating tumor cells in heavily pretreated individuals with a low life expectancy.

AIMS: Studies of circulating tumor cells (CTCs) have generally recruited individuals with newly diagnosed metastatic cancer, with recent data also indicating their prognostic value in the adjuvant setting. Their role in dying patients has not been established. EXPERIMENTAL: CTCs were measured in 43 individuals with metastatic breast cancer estimated to have less than 6 months to live who had exhausted standard therapeutic options. RESULTS: Those with a CTC count of ≤ 100 had a median of 182 days to live, compared with those with a CTC count of >100 who had a median of 17 days until death (p = 0.009, log rank, HR: 3.1, 95% CI: 1.4-7.3). CONCLUSION: A CTC count of >100 is associated with imminent death. Provided external validity is demonstrated, such information would be useful for patients and their families who often request specific prognostic clarity and could improve the quality of end-of-life care.

Retraining function in people with Parkinson's disease using the Microsoft kinect: game design and pilot testing.

BACKGROUND: Computer based gaming systems, such as the Microsoft Kinect (Kinect), can facilitate complex task practice, enhance sensory feedback and action observation in novel, relevant and motivating modes of exercise which can be difficult to achieve with standard physiotherapy for people with Parkinson's disease (PD). However, there is a current need for safe, feasible and effective exercise games that are appropriate for PD rehabilitation. The aims of this study were to i) develop a computer game to rehabilitate dynamic postural control for people with PD using the Kinect; and ii) pilot test the game's safety and feasibility in a group of people with PD. METHODS: A rehabilitation game aimed at training dynamic postural control was developed through an iterative process with input from a design workshop of people with PD. The game trains dynamic postural control through multi-directional reaching and stepping tasks, with increasing complexity across 12 levels of difficulty. Nine people with PD pilot tested the game for one session. Participant feedback to identify issues relating to safety and feasibility were collected using semi-structured interviews. RESULTS: Participants reported that they felt safe whilst playing the game. In addition, there were no adverse events whilst playing. In general, the participants stated that they enjoyed the game and seven of the nine participants said they could imagine themselves using the game at home, especially if they felt it would improve their balance. The Flow State Scale indicated participants were immersed in the gameplay and enjoyed the experience. However, some participants reported that they found it difficult to discriminate between different types and orientations of visual objects in the game and some also had difficulty with the stepping tasks, especially when performed at the same time as the reaching tasks. CONCLUSION: Computer-based rehabilitation games using the Kinect are safe and feasible for people with PD although intervention trials are needed to test their safety, feasibility and efficacy in the home.