Remembering specific features of emotional events across time: The role of REM sleep and prefrontal theta oscillations

When an episode of emotional significance is encountered, it often results in the formation of a highly resistant memory representation that is easily retrieved for many succeeding years. Recent research shows that beyond generic consolidation processes, rapid eye movement (REM) sleep importantly contributes to this effect. However, the boundary conditions of consolidation processes during REM sleep, specifically whether these extend to source memory, have not been examined extensively. The current study tested the effects of putative consolidation processes emerging during REM sleep and slow wave sleep (SWS) on item and source memory of negative and neutral images, respectively. Results demonstrate superior emotional relative to neutral item memory retention after both late night REM sleep and early night SWS. Emotional source memory, on the other hand, exhibited an attenuated decline following late night REM sleep, whereas neutral source memory was selectively preserved across early night SWS. This pattern of results suggests a selective preservation of emotional source memory during REM sleep that is functionally dissociable from SWS-dependent reprocessing of neutral source memory. This was further substantiated by a neurophysiological dissociation: Postsleep emotional source memory was selectively correlated with frontal theta lateralization (REM sleep), whereas postsleep neutral item memory was correlated with SWS spindle power. As such, the present results contribute to a more comprehensive characterization of sleep-related consolidation mechanisms underlying emotional and neutral memory retention. Subsidiary analysis of emotional reactivity to previously encoded material revealed an enhancing rather than attenuating effect of late night REM sleep on emotional responses.     

对新冠病毒肺炎危重症患者引入缓和医疗的伦理论证

新型冠状病毒肺炎尚无治疗特效药和疫苗。在继续加强防控的同时,把有限的资源优先放在探索对重症和危重症患者的支持性治疗,积极建立和完善对重症、危重症患者及其家属的缓和医疗等方面,有利于患者群体利益最大化,经得起伦理辩护。缓和医疗有助于改善患者预后,降低住院病死率,有效缓解患者濒死痛苦;对医患双方而言,如果死亡已无可避免,帮助临终者走得平安、少些痛苦,是医学对患者最后的人文关怀。     

Decision-making competence in everyday life: The roles of general cognitive styles,decision-making styles and personality

Research indicates that decision-making competence in everyday life is associated with certain decision-making styles. The aims of this article are to extend this research by examining (a) the extent to which general cognitive styles explain variance in decision-making competence over and above decision-making styles, and (b) the extent to which personality explains variance in decision-making competence over and above both types of style variable. Participants (N = 355) completed measures of everyday decision-making competence (Decision Outcomes Inventory), decision styles (Decision Style Questionnaire; Maximization Inventory), cognitive styles (the Cognitive Styles Inventory; Rational-Experience Inventory), and the Big Five personality variables (IPIP Big-Five factor scales). The results indicate that cognitive styles offer no incremental validity over decision-making styles in predicting decision-making competence, but that personality does offer substantial incremental validity over general cognitive styles and decision-making styles. Jointly decision-making styles and personality account for a substantial amount of variance in everyday decision-making competence.     

Short‐term and working memory: Past,progress, and prospects

Abstract

The role of current personal experience in understanding of word meaning was investigated in a patient, WM, who suffers from semantic dementia. The study was prompted by the observation that WM, despite being severely impaired on formal tests of word comprehension and naming, retained a range of vocabulary pertaining to her daily life. If autobiographical experience has a general facilitatory effect, then this should affect which concepts are retained and which lost, but not influence the quality of that conceptual knowledge. Conversely, if personal autobiography has a direct role in investing concepts with meaning, then WM's understanding of nominal terms that she uses spontaneously in conversation ought not to be normal, but should be constrained by the autobiographical context in which she uses those terms. WM could define nouns and noun phrases drawn from her conversational vocabulary, but her definitions had a markedly autobiographical quality. Moreover, WM was extremely impaired in her ability to define new noun phrases, constructed by combining words from her conversational vocabulary (e.g. “dog licence”, constructed from “driving licence” and “dog” “oil field” constructed from “oil” and “field”). It was concluded that WM does not have normal conceptual understanding of nouns and noun phrases that she uses appropriately in conversation. Her understanding is narrow and autobiographically constrained. The findings, which suggest an interactive relationship between autobiographical and semantic memory, have implications for understanding of the progressive breakdown of semantic knowledge.     

Frankfurt versus Frankfurt: a new anti-causalist dawn

There is an important anomaly to the causalist/compatibilist paradigm in the philosophy of action and free will. This anomaly, which to my knowledge has gone unnoticed so far, can be found in the philosophy of Harry Frankfurt. Two of his most important contributions to the field – his influential counterexample to the Principle of Alternate Possibilities and his ‘guidance’ view of action – are incompatible. Frankfurt's counterexample to the Principle works only if we do not understand action as Frankfurt does in his guidance account. If, on the other hand, we understand agency in terms of the agent's guidance, then his counterexample to the Principle fails because, then, counterfactual scenarios of Frankfurt-type counterexamples are such that what happens does not count as the relevant agent's action. So Frankfurt-type counterexamples do not show that the agent could not have avoided acting as she did: so they fail to offer a scenario in which the agent is intuitively responsible even though she could not have avoided acting as she did. Therefore, Frankfurt-type counterexamples do not challenge the Principle, according to which ‘a person is morally responsible for what he has done only if he could have done otherwise’. The importance of this inconsistency goes far beyond the issue of coherence within Frankfurt's philosophy. I shall argue that this inconsistency represents an important anomaly within the causalist/compatibilist framework; so that we should start to seriously consider having to move on from the established paradigm.     

Prospective and concurrent correlates of emotion perception in psychotic disorders: A naturalistic,longitudinal study of neurocognition,affective blunting and avolition

This naturalistic study investigated longitudinal and cross‐sectional symptomatic and neurocognitive correlates of social cognition indexed by emotion perception. Participants were 31 persons admitted to a psychiatric emergency ward due to acute psychosis. Positive and negative (i.e., affective blunting and avolition) symptoms were assessed at baseline and 12‐month follow‐up using the Positive and Negative Syndrome Scale. Participants completed neuropsychological assessments with alternative versions of the Repeatable Battery for the Assessment of Neuropsychological Status at baseline and at 12‐month follow‐up. Emotion perception was measured using the Face/Voice Emotion Test at 12‐month follow‐up. Correlational analyses (Spearman's rho) revealed strong and statistically significant associations between neurocognition and emotion perception (baseline r = 0.58, follow‐up r = 0.43). Associations between positive symptoms and emotion perception were weak or non‐existent (baseline r = 0.13, follow‐up r  =  –0.01). Emotion perception was moderately, but not significantly, associated with affective blunting at follow‐up (r = 0.33), but not at baseline (r = 0.21). The association with avolition was non‐existent (baseline r  =  –0.05, follow‐up r = 0.01). This study supports the notion that emotion perception has neurocognitive correlates. The cross‐sectional trend level association with affective blunting suggests that the ability to perceive emotions might be related to, but dissociable from the ability to express emotions.     

“打”出来的手机成瘾？父母粗暴养育对青少年智能手机成瘾的作用

对湖北省两所中学3219名初一至初三年级学生进行问卷调查,建立结构方程模型考察父母粗暴养育、核心自我评价、友谊质量和青少年智能手机成瘾的关系。结果发现：（1）核心自我评价在父母粗暴养育和青少年智能手机成瘾之间起部分中介作用,即父母粗暴养育既对青少年智能手机成瘾产生直接影响,也通过核心自我评价对青少年智能手机成瘾产生间接影响;（2）父母粗暴养育和核心自我评价的关系（中介作用的前半段路径）受到友谊质量的调节,即在高友谊质量和低友谊质量条件下,随着粗暴养育程度的增加,青少年核心自我评价均显著下降,但在高友谊质量的条件下,下降的程度更高。研究结果有助于揭示父母粗暴养育对青少年智能手机成瘾的影响及其作用机制,为预防和干预青少年智能手机成瘾带来一些重要的启示。     

Characteristics of residential retarded clients as predictors of staff expectations and frustrations

The purpose of this study was to examine the relationship of four client characteristics—functioning level, aggressive behavior, self-injurious behavior, and attractiveness—with staff expectations of and frustration with clients. Forty staff members who worked with severely and profoundly retarded individuals served as participants. Staff members rated each client with whom they worked on the extent to which the client could behave better and learn faster as well as the level of frustration experienced in working with the client. A client's functioning level was related to staff perceptions such that the higher the functioning level, the more the client was seen as having the potential to behave better or learn faster than (s)he was presently demonstrating. Staff frustration was related to client aggression indicating that as aggression increased so did staff frustration in working with that client. Implications of the results are discussed.     

Competency,and other constructs,in right to die cases

Subjects had to make a “remove” or “do not remove” life-sustaining measures decision in three right to die cases where the patients differed in competence; for half the subjects, a living will was present in all the cases, whereas, for the other half, it was not. Subjects also gave their determinative reasons for their decisions. Support for the right to die varied by case, but not by competency, or by the presence of a living will. The subjects' reasons were highly predictive of their decisions, and related to the way case-specific facts were construed, revealing a number of disparities between the way courts and citizens construe whether the patient's condition is “terminal,” “irreversible,” and “painful,” or not. Beyond construing facts differently, the results also revealed a disparity between evolving case law and the community's “common sense justice” over a fundamental belief: whether dying is seen as private matter, outside the bounds of State intervention, or not.