Discrete changes in the frequency and functions of autobiographical reminiscence in Huntington's disease

ABSTRACT

Autobiographical memory is widely posited to serve self, social and directive functions. Recent evidence suggests marked autobiographical memory impairments in Huntington's disease (HD), however, no study to date has determined how the perceived functions of autobiographical reminiscence may be altered in HD. The current study aimed to assess the self-reported frequency and function of autobiographical reminiscence in HD. We assessed autobiographical reminiscence in late premanifest (n?=?16) and early stage HD (n?=?14), relative to healthy controls (n?=?30). Participants completed the Thinking About Life Experiences Scale Revised (TALE-R), which measures three putative functions of autobiographical memory (self, social, directive). People with manifest HD reported talking less frequently about the past compared to controls. In contrast, no group differences were found in terms of thinking about the past. Manifest HD participants further reported using their autobiographical memories for social functions less frequently compared to controls. No other group differences were evident in terms of self or directive functions of autobiographical memory. These self-report findings complement recent reports of autobiographical memory disruption on performance-based tasks in HD. Future studies exploring how changes in autobiographical reminiscence impact a sense of self continuity in HD will be important in this regard.     

Knowledge of memory functions in European and Asian American adults and children: The relation to autobiographical memory

This study investigated explicit knowledge of autobiographical memory functions using a newly developed questionnaire. European and Asian American adults (N = 57) and school-aged children (N = 68) indicated their agreement with 13 statements about why people think about and share memories pertaining to four broad functions—self, social, directive and emotion regulation. Children were interviewed for personal memories concurrently with the memory function knowledge assessment and again 3 months later. It was found that adults agreed to the self, social and directive purposes of memory to a greater extent than did children, whereas European American children agreed to the emotion regulation purposes of memory to a greater extent than did European American adults. Furthermore, European American children endorsed more self and emotion regulation functions than did Asian American children, whereas Asian American adults endorsed more directive functions than did European American adults. Children's endorsement of memory functions, particularly social functions, was associated with more detailed and personally meaningful memories. These findings are informative for the understanding of developmental and cultural influences on memory function knowledge and of the relation of such knowledge to autobiographical memory development.     

Directive functions of autobiographical memory: the guiding power of the specific episode

Vivid memories of personal experiences provide models for present activities and contribute to successful problem solving and adaptation. The memories serve important directive functions: they inform, guide, motivate, and inspire. Yet directive functions have received less emphasis in the research literature than social or self functions. Explanations for this relative neglect are explored. Case studies and systematic research illustrate the prominence of memory directives in everyday life. Empirical studies that have compared memory functions are examined critically, reasons why directive functions may be underestimated using existing methods are discussed, and ideas for future research are outlined.     

Autobiographical Memory Functions Served by Multiple Event Types

Autobiographical memories are thought to serve three basic functions: self‐definition, social connection, and directing future behavior. Previous research suggests that the function a memory comes to serve may differ by the type of event recalled (e.g., single unique events vs. repeated or recurring events). In two studies, we compared memories for different event types on function served. Results from Study 1 suggest that narratives of single events serve more of a self and directive function compared with recurring events, whereas recurring events serve more of a social function. Extended events, however, were high on all three functions. Study 2 specifically examined single and recurring events. Results replicated and extended Study 1 using both narrative coding and questionnaire measures. Implications of the examination of multiple event types and functional approaches to autobiographical memory for understanding links between experiences and psychological outcomes are discussed. Copyright © 2013 John Wiley & Sons, Ltd.     

Wisdom and memory: Autobiographical memories as the foundation for the recall of wisdom incidents

This article explores how autobiographical memory serves as the foundation for people's accounts of their wisdom. Two complementary approaches to wisdom are introduced: an intrapersonal or person-based approach, which defines wisdom as personal qualities or personality traits, and an interactionist or endeavor-based approach, which focuses on wisdom incidents—people's displays of wisdom in real-life situations. The literatures on autobiographical memory and on wisdom suggest that, when wisdom is defined as personal qualities or personality traits, its foundation in autobiographical memory is self-concept. However, when wisdom is defined as actual displays of wisdom, its foundation in autobiographical memory is specific autobiographical memories. The article discusses how autobiographical memory grounds and constrains the memories of wisdom. Further, using research on autobiographical memory, it argues that memories of wisdom incidents serve self, directive, and social functions, and that such memories are highly accessible, vividly remembered, and reasonably accurate.     

Function in context: Why American and Trinidadian young and older adults remember the personal past

Multiple and interacting contextual (culture, life phase) and person-specific predictors (i.e., personality, tendency to think-talk about the past) of the functions of autobiographical memory were examined using the Thinking about Life Experiences Scale. American (N = 174) and Trinidadian (N = 182) young and older adults self-reported how frequently they remembered the personal past to serve self, social and directive functions, how often they thought and talked about their past overall, and completed a measure of trait personality. Independent contextual and person-specific predictors were found for using memory to serve a social-bonding function: Americans, young adults, those higher in extraversion, lower in conscientiousness and individuals who frequently think and talk about the past more often use autobiographical memory for social bonding. Across cultures, younger adults report more frequently using memory to serve all three functions, whereas Trinidadians who think more often about the past compared with those who reflect less often are more likely to use it for self and directive functions. Findings are discussed in terms of the individual's embeddedness in cultural and life phase contexts when remembering.     

Autobiographical memory: exploring its functions in everyday life

This special issue of Memory spotlights research that uses a functional approach to investigate autobiographical memory (AM) in everyday life. This approach relies on studying cognition, in this case AM, taking into account the psychological, social, or cultural-historic context in which it occurs. Areas of interest include understanding to what ends AM is used by individuals and in social relationships, how it is related to other cognitive abilities and emotional states, and how memory represents our inner and outer world. One insight gained by taking this approach is that levels and types of accuracy need not always be regarded as memory "failures" but are sometimes integral to a self-memory system that serves a variety of meaningful ends of human activity. Previously hypothesised functions of AM fall into three broad domains: self, social, and directive. Each of the contributions addresses how AM serves one or more of these functions and thereby examines the usefulness and adequacy of this trio.     

Factor structure of overall autobiographical memory usage: the directive, self and social functions revisited

According to theory, autobiographical memory serves three broad functions of overall usage: directive, self, and social. However, there is evidence to suggest that the tripartite model may be better conceptualised in terms of a four-factor model with two social functions. In the present study we examined the two models in Danish and German samples, using the Thinking About Life Experiences Questionnaire (TALE; Bluck, Alea, Habermas, & Rubin, 2005), which measures the overall usage of the three functions generalised across concrete memories. Confirmatory factor analysis supported the four-factor model and rejected the theoretical three-factor model in both samples. The results are discussed in relation to cultural differences in overall autobiographical memory usage as well as sharing versus non-sharing aspects of social remembering.     

Factor structure of overall autobiographical memory usage: The directive,self and social functions revisited

According to theory, autobiographical memory serves three broad functions of overall usage: directive, self, and social. However, there is evidence to suggest that the tripartite model may be better conceptualised in terms of a four-factor model with two social functions. In the present study we examined the two models in Danish and German samples, using the Thinking About Life Experiences Questionnaire (TALE; Bluck, Alea, Habermas, & Rubin, 2005), which measures the overall usage of the three functions generalised across concrete memories. Confirmatory factor analysis supported the four-factor model and rejected the theoretical three-factor model in both samples. The results are discussed in relation to cultural differences in overall autobiographical memory usage as well as sharing versus non-sharing aspects of social remembering.     

自传体记忆功能对失独者延长哀伤的影响:家族主义情感的调节作用

为厘清自传体记忆功能对失独者延长哀伤的影响,以及家族主义情感在其中的调节作用,本研究采用生活经历回想问卷、家族主义情感量表和延长哀伤问卷对372名失独者进行调查。结果发现：（1）失独者自传体记忆的自我功能、社会功能和指导功能均能负向预测其延长哀伤水平;（2）家族主义情感在自传体记忆的自我功能和指导功能对失独者延长哀伤的影响中起调节作用,对家族主义情感水平高的失独者来说,自传体记忆的自我功能和指导功能能负向预测其延长哀伤水平,但对家族主义情感水平低的失独者来说,自传体记忆的自我功能和指导功能对其延长哀伤水平没有预测作用;（3）对罹患延长哀伤障碍的失独者来说,自传体记忆功能对延长哀伤水平的预测作用和家族主义情感的调节作用均不显著。     

自发性自传体记忆：功能、特征及其理论解释

自发性自传体记忆是个体在日常生活中对自身经历的突发性回忆。作为一种普遍的基本记忆方式, 它具有指导功能和自我功能。与自觉性自传体记忆相比, 其特征是：提取方式为基于联想、自下而上加工的直接提取过程, 内容上更倾向于积极情绪事件且复述频率较低, 性质上更具体。相应的解释理论有情景记忆回想理论、线索-启动理论、直接提取理论及概念联想理论。未来研究应注意功能验证、研究系统化、理论整合与跨文化等问题。     

Identifying distinct sets of predictors of specific functions of autobiographical memory

ABSTRACT

Grounded in the ecological approach, research has charted several adaptive functions of autobiographical remembering. Each represents a rather different psychosocial domain (i.e., self, social, directive). The goal of this research was to determine the contributions of each of a set of variables, controlling for all others, in predicting use of autobiographical memory to serve each specific function. In two studies, participants (N?=?100; N?=?195) rated frequency of functional use of specific event memories and completed a brief battery of memory-related measures. Most Study One results were replicated in Study Two. Self-relevance of memories was related to their functional use regardless of domain. Each function was also, however, predicted by a unique set of variables consistent with its use in a given psychosocial domain. Findings emphasise how a combination of factors come into play to allow humans to use autobiographical memory to serve various different functions in navigating daily life.     

Self and social functions: individual autobiographical memory and collective narrative

The personal functions of autobiographical memory build on the basic biological functions of memory common to most mammals that, however, do not have the kind of episodic memories that compose human autobiographical memory according to present theory. The thesis here is that personal autobiographical memory is functionally and structurally related to the use of cultural myths and social narratives, and that the relative emphasis put on the self in different cultural and social contexts influences the form and function of autobiographical memory and the need for developing a uniquely personal life narrative in those contexts. Historical and cross-cultural trends revealed in psychological and literary research are invoked to support this thesis.     

Emotional valence and the functions

Differences between positive and negative autobiographical memories are often explained with reference to hypothesized evolutionary functions. Generally, it has been proposed that autobiographical memory serves directive, self-, and social functions. However, the relationship between emotional valence and the three functions has never been studied. In Study 1, participants generated memories that mapped onto each of the three functions. Directive memories were dominated by negative emotion, whereas self- and social memories were dominated by positive emotion. In Study 2, participants generated their most positive and most negative memories, as well as their most frequent involuntary and most vivid flashbulb memories, and the three functions were measured through rating-scale questions. The directive function had the lowest ratings across all memory classes, but, consistent with the results of Study 1, positive memories were rated higher on the self- and social functions, whereas negative memories were rated higher on the directive function.     

A dysphoric's TALE: The relationship between the self-reported functions of autobiographical memory and symptoms of depression

Autobiographical memory (AM) is believed to serve self, social and directive functions; however, little is known regarding how this triad of functions operates in depression. Using the Thinking About Life Experiences questionnaire [Bluck, S., & Alea, N. (2011). Crafting the TALE: Construction of a measure to assess the functions of autobiographical remembering. Memory, 19, 470–486.; Bluck, S., Alea, N., Habermas, T., & Rubin, D. C. (2005). A TALE of three functions: The self–reported uses of autobiographical memory. Social Cognition, 23, 91–117.], two studies explored the relationship between depressive symptomology and the self-reported frequency and usefulness of AMs for self, social and directive purposes. Study 1 revealed that thinking more frequently but talking less frequently about past life events was significantly associated with higher depression scores. Recalling past events more frequently to maintain self-continuity was also significantly associated with higher depressive symptomology. However, results from Study 2 indicated that higher levels of depression were also significantly associated with less-frequent useful recollections of past life events for self-continuity purposes. Taken together, the findings suggest atypical utilisations of AM to serve self-continuity functions in depression and can be interpreted within the wider context of ruminative thought processes.     

Personality traits and autobiographical memory: Openness is positively related to the experience and usage of recollections

We examined the relationship between the Five-Factor Model of personality and the experience and overall usage of autobiographical memory in two studies. In both studies we found that Openness was related to the directive and self functions of overall usage. In addition, Openness was related to the vividness, reliving, coherence, and centrality of event to the person's identity and life story of concrete memories in Study 2, whereas this was not found in Study 1. For the remaining "Big Five" personality traits the results were less consistent across studies. Neuroticism was related to the self function in Study 1, but also to the directive function as well as to negative affect of concrete memories in Study 1. Extraversion was positively related to the social function as well as to conversational rehearsal of memories in Study 1, but this was also not replicated in Study 2. Finally, in both studies there were no significant relationships with regard to Agreeableness and Conscientiousness. Overall, the findings replicate and extend previous work showing a positive relationship between Openness and the experience and overall usage of autobiographical memory, whereas the roles for the remaining "Big Five" are less clear.     

Autobiographical memory bias in social anxiety

In social anxiety the psychological self is closely related to the feared stimulus. Socially anxious individuals are, by definition, concerned about how the self is perceived and evaluated by others. As autobiographical memory is strongly related to views of the self it follows that biases in autobiographical memory play an important role in social anxiety. In the present study high (n = 19) and low (n = 29) socially anxious individuals were compared on autobiographical memory bias, current goals, and self-discrepancy. Individuals high in social anxiety showed a bias towards recalling more negative and more social anxiety-related autobiographical memories, reported more current goals related to overcoming social anxiety, and showed larger self-discrepancies. The pattern of results is largely in line with earlier research in individuals with PTSD and complicated grief. This suggests that the relation between autobiographical memory bias and the self is a potentially valuable trans-diagnostic factor.     

The mood-enhancement function of autobiographical memories: Comparisons with other functions in terms of emotional valence

In two studies, we examined the emotional valence of memories used for mood-enhancement in relation to memories serving self, social and directive functions. Our sample included a total of 263 participants aged between 45 and 82 years. In Study 1, participants recalled memories in response to 51 cue words. In Study 2, participants recalled 32 memories that served the four functions (eight memories per function). We used multilevel modeling to take into consideration the hierarchical nature of our datasets (memories nested within individuals). Study 1 showed that emotional valence was positively associated with mood-enhancement and social functions, whereas negatively related to self and directive functions. This relation was strongest for the mood-enhancement function. In Study 2, mood-enhancing memories were rated as more positive than self, social and directive memories. We discussed results in terms of the tripartite model of memory functions and proposed that mood-enhancement should represent a distinct function.     

The impact of perceived self-efficacy on mental time travel and social problem solving

Current models of autobiographical memory suggest that self-identity guides autobiographical memory retrieval. Further, the capacity to recall the past and imagine one's self in the future (mental time travel) can influence social problem solving. We examined whether manipulating self-identity, through an induction task in which students were led to believe they possessed high or low self-efficacy, impacted episodic specificity and content of retrieved and imagined events, as well as social problem solving. Compared to individuals in the low self efficacy group, individuals in the high self efficacy group generated past and future events with greater (a) specificity, (b) positive words, and (c) self-efficacious statements, and also performed better on social problem solving indices. A lack of episodic detail for future events predicted poorer performance on social problem solving tasks. Strategies that increase perceived self-efficacy may help individuals to selectively construct a past and future that aids in negotiating social problems.     

Autobiographical memory specificity predicts social problem-solving ability in old and young adults

Based on recent research with young, depressed adults, age-related cognitive declines and decreased autobiographical specificity were hypothesized to predict poorer social problem-solving ability in older than in younger healthy adults. Priming autobiographical memory (ABM) was hypothesized to improve social problem-solving performance for older adults. Subsequent to cognitive tests, old and young participants' specific ABMs were tested using a cued recall task, followed by a social problem-solving task. The order of the tasks was counterbalanced to test for a priming effect. Autobiographical specificity was related to cognitive ability and predicted social problem-solving ability for both age groups. However, priming of ABM did not improve social problem-solving ability for older or younger adults. This study provides support for the hypothesis that autobiographical memory serves a directive function across the life-span.