The effects of sleep on episodic memory in older and younger adults

Evidence on sleep-dependent benefits for episodic memory remains elusive. Furthermore we know little about age-related changes on the effects of sleep on episodic memory. The study we report is the first to compare the effects of sleep on episodic memories in younger and older adults. Memories of stories and personal events were assessed following a retention interval that included sleep and following an equal duration of wakefulness. Both older and younger adults have superior memory following sleep compared to following wakefulness for both types of material. Amount of forgetting of personal events was less during wakefulness in older adults than in younger adults, possibly due to spontaneous rehearsal. Amount of time spent sleeping correlated highly with sleep benefit in older adults, suggesting that quantity of total sleep, and/or time spent in some stages of sleep, are important contributors to age-related differences in memory consolidation or protection from interference during sleep.     

The role of working memory capacity in autobiographical retrieval: Individual differences in strategic search

Remembering previous experiences from one's personal past is a principal component of psychological well-being, personality, sense of self, decision making, and planning for the future. In the current study the ability to search for autobiographical information in memory was examined by having college students recall their Facebook friends. Individual differences in working memory capacity manifested itself in the search of autobiographical memory by way of the total number of friends remembered, the number of clusters of friends, size of clusters, and the speed with which participants could output their friends' names. Although working memory capacity was related to the ability to search autobiographical memory, participants did not differ in the manner in which they approached the search and used contextual cues to help query their memories. These results corroborate recent theorising, which suggests that working memory is a necessary component of self-generating contextual cues to strategically search memory for autobiographical information.     

Development of the emotional self-disclosure scale

The Emotional Self-Disclosure Scale (ESDS) was developed to assess how willing people are to discuss specific emotions with different disclosure recipients. Internal reliabilities (Cronbach's alpha) and test-retest were consistently high for each of the subscales on the ESDS for three specific disclosure recipients: female friends, male friends, and spouses/lovers. A final set of results indicated that women's and men's emotional disclosures varied as a function of their gender and the personal characteristics of the disclosure recipient. Although men and women reported a similar pattern of willingness to discuss their emotions with their male friends, additional results revealed that women were more willing than men to disclose information about their feelings of depression, anxiety, anger, and fear to their female friends and spouses/lovers. The implications of these findings for men's and women's emotional expressivity are discussed.Portions of this paper were presented at the 33rd annual meeting of the Southwestern Psychological Association, New Orleans, Louisiana, April 1987.     

活体肝移植伦理相关问题的质性研究

活体肝移植术虽部分解决了供肝短缺问题,但需从活的供体身上切取部分肝脏,使其承担手术创伤甚至死亡的风险,故存在诸多伦理问题。本文应用质性研究,对7名与活体肝移植相关的不同领域专家及6名手术相关者进行访谈,采用 Nvivo9．0软件辅助对访谈资料进行了分析。探讨活体肝移植的伦理审查、供体选择及心理评估的相关伦理问题。结果显示,尽管活体肝移植手术仍在全国多家医院进行,目前政府对活体肝移植伦理审查和监管更加严格,伦理审查缺少对供体、受体的心理综合评估。因此,建议建立健全并推广死亡器官捐赠注册系统以增加肝源,减少活体肝移植对供体带来的健康风险,并开发适用的心理综合评估工具,评估结果应列入伦理审查范围。     

Impact of organ transplantation in heart,lung and liver recipients: Assessment of positive life changes

Objective: The majority of psychological studies with organ transplant recipients have examined negative psychological effects. This study aimed to further investigate the positive effects of organ transplantation and to construct a specific measurement instrument.

Design: The initial pool of 14 items for the Positive Effects of Transplant Scale (PETS) was derived from organ recipient interviews. A cross-sectional postal study included 87 heart, 46 lung and 193 liver transplant recipients. The PETS was subjected to principal components analysis (PCA) using varimax rotation, and associations with other measures investigated.

Main outcome measures: PETS and an open-ended item about positive effects.

Results: Coding of the open-ended item revealed that the majority of recipients attributed positive life changes to the transplant experience. PCA of the PETS indicated three factors that accounted for 58.82% of the variance. The 12-item questionnaire assesses improvements in: (1) life philosophy, (2) gratitude and (3) health. The total PETS scores exhibited adequate internal consistency and validity.

Discussion: Most transplant patients report positive psychological effects, which suggests this may be an understudied area. The initial development of an assessment tool provides researchers and clinicians a way to assess the degree and nature of these life changes.     

Cultural and communicative memories: contrasting Argentina’s 1976 coup d’état and the 2001 economic-political-social crisis

Studies on collective memory have recently addressed the distinction between cultural and communicative memory as a way to understand how the source of a memory affects its structure or form. When a groups’ memory is mediated by memorials, documentaries or any other cultural artifacts, collective memory is shaped by cultural memory. When it is based mostly in communication with other people, its source is communicative memory. We address this distinction by studying two recent events in Argentinean history: the 2001 economic-political-social crisis (communicative memory) and the 1976 coup (cultural memory). We also examine the political ideology and the type of memory involved in collective memory. The memory of the studied events may occur during the lifetime of the rememberer (Lived Memory) or refer to distant events (Distant Memory). 100 participants responded to a Free Recall task about the events of 2001 in Argentina. Narrative analysis allowed comparing these recalls with our 1976 study. Results show: 1) Cultural memories are more contextualised, more impersonal and less affective. 2) Communicative memories are more personal and affective. Study shows how collective memory form changes when it has a different prevalent source.     

The relation between verbal and visuospatial memory and autobiographical memory

The basic-systems approach (Rubin, 2005, 2006) states that autobiographical memory is supported by other cognitive systems and argues that autobiographical memories are constructed from interactions between cognitive systems, such as language, vision and emotion. Although deficiencies in one or more of the basic systems influence the properties of autobiographical memories, little is known about how these cognitive abilities and autobiographical memory are related. To assert whether participants with stronger cognitive abilities also perform better on autobiographical memory tests, participants who completed verbal and visuospatial memory tests also recorded one personal event, which they recalled after a certain interval. Participants who performed well on the verbal memory tests also had better retention for the personal event, providing support for the basic-systems approach to autobiographical memory and preliminary support for the view that people have more memories from adolescence and early adulthood because the memory system works optimally in these lifetime periods.     

The march of time: rigid or chaotic transactions, two different ways of living time

In this paper the author shows that families do not live time in the same way. In families with rigid transactions, time is arrested; in families with chaotic transactions time is eventful. These different ways of living time are true of all systems, and parallels are drawn with political systems. Therapists must thus manage the therapeutic time in different ways, and this depends, among other factors, on their "personal equation." To achieve this, some guidelines are given, and two techniques that we call photograms and historiograms are described.     

Affectionate Behavior in Adult Platonic Friendships Interpreting and Evaluating Expectancy Violations

Affection is a central component of communicative processes in close personal relationships. Despite its importance, however, individuals expressing affection can incur a number of interpersonal risks, especially in nonromantic relationships where opportunities for misattribution on the part of the recipient may be high. Therefore, it is important to understand individuals' expect at ions for the kind and intensity of affectionate behavior they anticipate in their personal relationships. Although extant research has identified a number of influences on expectancies for affection, this study extends existing knowledge by examining how individuals react to expectancy-violating changes in affectionate behavior. An experiment involving 40 pairs of adult platonic friends revealed that unexpected changes in affectionate involvement produce changes in cognitive assessments and behavioral reactions on the part of the recipient, and that violative situations are differentially valenced according to the direction of change in affectionate involvement. These findings are interpreted as support for the tenets of expectancy violations theory.     

Fantasized recipient-donor relationships following lung transplantations: a qualitative case analysis based on patient narratives

The present study examines the relationships between lung transplant recipients and their unknown, deceased donors. Out of 20 semi-structured interviews, eight narratives, by three female and three male recipients respectively, were identified in which the figure of the donor played a role. These narratives were examined using JAKOB, a qualitative research tool that analyses relational configurations and diagnoses psychodynamic conflicts. Analysis revealed a broad range of varying themes and relationships with equally varying wish and fear themes. All the narrators dealt either explicitly or implicitly with whether and how they are connected to their donors. In five narratives, specific personality traits were attributed to the figure of the donor; in four narratives, latent feelings of guilt concerning the donor's death were expressed. Indeed, the figure of the donor was not always perceived as an independent person, separate from the narrator's self: in two cases, the donor appears as part of the recipient's self, while in another case, the donor is presented as a transitional object for the recipient. The findings of the narrative analysis are discussed within a theoretical model of psychical organ integration.     

Communication Using Camera Phones Among Young Men and Women: Who Sends What to Whom?

This study examined whether the gender of the sender and recipient would influence camera phone usage. 180 college and university students from the Midlands and North of England provided information on communication with friends and family, and on personal importance of image uses. A sub-sample of 130 provided further data on likelihood of sending different kinds of image and the content of recent images sent and received. Many gender similarities were found, together with evidence of the use of images to support heterosexual relationships. However, the results showed greater use of images of significant individuals by the women than among their male counterparts, among all-female dyads and to communicate with female recipients. Overall the results suggest that women use images more than men for relationship maintenance.     

Priming,not inhibition,of related concepts during future imagining

Remembering the past and imagining the future both involve the retrieval of details stored in episodic memory and rely on the same core network of brain regions. Given these parallels, one might expect similar component processes to be involved in remembering and imagining. While a strong case can be made for the role of inhibition in memory retrieval, few studies have examined whether inhibition is also necessary for future imagining and results to-date have been mixed. In the current study, we test whether related concepts are inhibited during future imagining using a modified priming approach. Participants first generated a list of familiar places and for each place, the people they most strongly associate with it. A week later, participants imagined future events involving recombinations of people and places, immediately followed by a speeded response task in which participants made familiarity decisions about people’s names. Across two experiments, our results suggest that related concepts are not inhibited during future imagining, but rather are automatically primed. These results fit with recent work showing that autobiographically significant concepts (e.g., friends’ names) are more episodic than semantic in nature, automatically activating related details in memory and potentially fuelling the flexible simulation of future events.     

Altering access to autobiographical episodes with prior semantic knowledge

Within autobiographical knowledge, semantic and episodic memory are traditionally considered separate, but newer models place them along a continuum, which raises the possibility of an intermediate form of knowledge - personal semantics. This study tested how different types of semantics – general semantics and two forms of personal semantics – impact access to personal episodic memories. In two experiments, participants made a series of true/false judgments about a prime statement, which reflected a general semantic fact, a context-dependent (e.g., repeated event) or context-independent (e.g., trait), personal semantic fact and then retrieved a specific past episodic memory. There was a significantly stronger priming effect for accessing specific episodic memories after judging personal semantic facts versus general facts. We also found that context-dependent and -independent personal semantic facts had separable priming effects on episodic memory. These findings support a continuum model of memory and verifies that there are multiple forms of personal knowledge.     

Selective attention meets spontaneous recognition memory: Evidence for effects at retrieval

Previous research on the effects of Divided Attention on recognition memory have shown consistent impairments during encoding but more variable effects at retrieval. The present study explored whether effects of Selective Attention at retrieval and subsequent testing were parallel to those of Divided Attention. Participants studied a list of pictures and then had a recognition memory test that included both full attention and selective attention (the to be responded to object was overlaid atop a blue outlined object) trials. All participants then completed a second recognition memory test. The results of 2 experiments suggest that subsequent tests consistently show impacts of the status of the ignored stimulus, and that having an initial test changes performance on a later test. The results are discussed in relation to effect of attention on memory more generally as well as spontaneous recognition memory research.     

Scent-evoked nostalgia

Declarative and non-declarative memories are thought be supported by two distinct memory systems that are often posited not to interact. However, Wagner, Maril, and Schacter (2000a) reported that at the time priming was assessed, greater behavioural and neural priming was associated with lower levels of subsequent recognition memory, demonstrating an interaction between declarative and non-declarative memory. We examined this finding using a similar paradigm, in which participants made the same or different semantic word judgements following a short or long lag and subsequent memory test. We found a similar overall pattern of results, with greater behavioural priming associated with a decrease in recognition and recall performance. However, neither various within-participant nor various between-participant analyses revealed significant correlations between priming and subsequent memory performance. These data suggest that both lag and task have effects on priming and declarative memory performance, but that they are largely independent and occur in parallel.     

Acetylcholine modulation of neural systems involved in learning and memory

Extensive evidence supports the view that cholinergic mechanisms modulate learning and memory formation. This paper reviews evidence for cholinergic regulation of multiple memory systems, noting that manipulations of cholinergic functions in many neural systems can enhance or impair memory for tasks generally associated with those neural systems. While parallel memory systems can be identified by combining lesions with carefully crafted tasks, most—if not all—tasks require the combinatorial participation of multiple neural systems. This paper offers the hypothesis that the magnitude of acetylcholine (ACh) release in different neural systems may regulate the relative contributions of these systems to learning. Recent studies of ACh release, obtained with in vivo microdialysis samples during training, together with direct injections of cholinergic drugs into different neural systems, provide evidence that release of ACh is important in engaging these systems during learning, and that the extent to which the systems are engaged is associated with individual differences in learning and memory.     

A Test of the Agency Hypothesis in Women��s Cosmetic Surgery Usage

Women??s agency??their ability to make conscious choices and to act on them??is a central consideration in feminist theories of cosmetic surgery. Several key issues in this longstanding debate are how much external or coercive influence women experience (or acknowledge) in their choice to pursue surgery, whether they are aware of sexist ideology more so than non-recipients, and whether their choice to pursue surgery exemplifies a strong sense of self worth. To test this agency hypothesis, we draw on survey data from a volunteer sample of 202 adult women ages 19?C86 years from the southern California region in the U.S. to compare cosmetic surgery recipients to non-recipients across these key socio-cultural and personal domains. Results reveal that cosmetic surgery recipients were more likely to have friends who had undergone cosmetic surgery, endorsed more covert sexist beliefs, exhibited greater media usage, and had higher household incomes, than non-recipients. Recipients also evidenced lower ratings in global self-esteem than non-recipients. These findings challenge some of the notions attendant to agency claims, and engage with conceptions of autonomy introduced in the feminist philosophical literature.