Modes of remembering in patients with chronic pain: relation to current pain

Imagining My Painful Hand Is Not Mine: Self-Distancing Relieves Experimental Acute Pain Induced by a Cold Pressor Task

Self-distancing has been shown to alleviate emotional pain and to have potential efficacy for treating chronic pain and imagined acute pain, relative to self-immersing. This study examined the efficacy of self-distancing in relieving acute physical pain caused by a cold pressor task (CPT) in healthy adults. A total of 65 undergraduates were assigned pseudorandomly to 1 of 3 groups: 1) a self-distancing group, in which participants were instructed to "take a step back" to simulate their current painful experience as an observer, 2) a self-immersed group, in which participants' current painful experience was stimulated from the egocentric perspective, and 3) a control group, in which participants coped with pains in their spontaneous ways. Three key sessions were included in the present experiment: the pretest CPT, the perspective training (instead of rest in the control group), and the posttest CPT. The participants were to adopt the designated perspective only during the posttest CPT. The results showed that 1) maintaining a self-distanced perspective while experiencing pain decreased the sensation of pain, relative to the self-immersed group and the control group; and (2) compared with the control group, maintaining a self-immersed perspective neither alleviated nor aggravated the pain. This result supports that self-distancing could relieve the acute pain induced by CPT. Perspective: This study presents a brief effective psychological intervention to manage acute pain. This result could potentially have clinical and everyday importance.

Imagining possible selves across time: Characteristics of self-images and episodic thoughts

Thinking about our possible selves can entail thinking about self-related imagined future events. When remembering and imagining, individuals can use both 1st person (field) and 3rd person (observer) perspectives. There is currently a paucity of research examining the visual perspectives of episodic future thoughts that represent possible selves. We hypothesised that temporally distant self-images would elicit more observer perspectives in episodic thoughts than temporally near self-images and current self-images. Utilising a repeated measures design, sixty-eight undergraduate students completed IAM, I Will Be near and I Will Be far conditions (Rathbone, Conway, & Moulin, 2011) to generate self-images and their related episodic thoughts. It was found that episodic qualities were reliably affected by different self-images. Specifically, observer perspective predilections increased with future temporal distance. Findings are discussed in relation to self-continuity with recommended practical applications of visual perspective utilisation for wellbeing.

Visual imagery in autobiographical memory: The role of repeated retrieval in shifting perspective

Recent memories are generally recalled from a first-person perspective whereas older memories are often recalled from a third-person perspective. We investigated how repeated retrieval affects the availability of visual information, and whether it could explain the observed shift in perspective with time. In Experiment 1, participants performed mini-events and nominated memories of recent autobiographical events in response to cue words. Next, they described their memory for each event and rated its phenomenological characteristics. Over the following three weeks, they repeatedly retrieved half of the mini-event and cue-word memories. No instructions were given about how to retrieve the memories. In Experiment 2, participants were asked to adopt either a first- or third-person perspective during retrieval. One month later, participants retrieved all of the memories and again provided phenomenology ratings. When first-person visual details from the event were repeatedly retrieved, this information was retained better and the shift in perspective was slowed.

Memory impairment in chronic pain patients and the related neuropsychological mechanisms: a review

OBJECTIVE

This study provides a comprehensive review of the literature on memory impairment and the potential effective factors in patients with chronic pain.

METHODS

A literature search of databases PubMed, EMBASE, SpringerLink, and PsycINFO until September 2012 was conducted using the keywords ‘memory’ and ‘chronic pain’. The study emphasises on publications over the past 20 years.

RESULTS

Memory impairment in chronic pain patients is substantial, but the aspects of memory (e.g. working memory, long-term memory, and autobiographical memory) in chronic pain patients and the potentially related factors (e.g. age, level of education, pain conditions, emotion, neural network, and use of analgesics) are modest. Memory impairment is interpreted with the attention-narrowing hypothesis and the capacity-reduction hypothesis.

CONCLUSIONS

The currently available data and theory have explained memory impairment in chronic pain patients, but many controversies remain. Future research should focus on the subclinical characteristics of chronic pain, enlarging the sample size, and emphasise on the experimental intervention method and the cognitive neuroscience method.

A cognitive ethology study of first- and third-person perspectives

The aim of the present study was to test the cognitive ethology approach, which seeks to link cognitions and behaviours as they operate in everyday life with those studied in controlled lab-based investigations. Our test bed was the understanding of first-person and third-person perspectives, which in lab-based investigations have been defined in a diverse and multi-faceted manner. We hypothesized that because these lab-based investigations seek to connect with how first- and third-person perspective operates in everyday life, then either some of the divergent lab-based definitions are missing their mark or the everyday conceptualization of first- and third-person perspective is multi-faceted. Our investigation revealed the latter. By applying a cognitive ethology approach we were able to determine that a) peoples’ everyday understanding of perspective is diverse yet reliable, and b) a lab-based investigation that applies these diverse understandings in a controlled setting can accurately predict how people will perform. These findings provide a ‘proof of concept’ for the cognitive ethology approach. Moreover, the present data demonstrate that previous lab-based studies, that often had very different understandings of first- and third-person perspective, were each in and of themselves valid. That is, each is capturing part of a broader understanding of perspective in everyday life. Our results also revealed a novel social factor not included in traditional conceptualizations of first-person third-perspective, that of eye gaze, i.e., eye contact is equated strongly with first-person perspective and the lack of eye-contact with third-person perspective.

Visual perspective in autobiographical memories: reliability, consistency, and relationship to objective memory performance

Visual perspective in autobiographical memories was examined in terms of reliability, consistency, and relationship to objective memory performance in a sample of 99 individuals. Autobiographical memories may be recalled from two visual perspectives--a field perspective in which individuals experience the memory through their own eyes, or an observer perspective in which individuals experience the memory from the viewpoint of an observer in which they can see themselves. Participants recalled nine word-cued memories that differed in emotional valence (positive, negative and neutral) and rated their memories on 18 scales. Results indicate that visual perspective was the most reliable memory characteristic overall and is consistently related to emotional intensity at the time of recall and amount of emotion experienced during the memory. Visual perspective is unrelated to memory for words, stories, abstract line drawings or faces.

Frequency of counterstrain tender points in osteopathic medical students

CONTEXT

Counterstrain is 1 osteopathic manipulative treatment technique taught to osteopathic medical students, but teaching all 300 counterstrain tender points is not feasible at most colleges of osteopathic medicine (COMs) because of time limitations.

OBJECTIVE

To identify high-yield tender points in osteopathic medical students for teaching and to assess for correlations between tender points and demographic information, weight, and history of pain or trauma.

METHODS

First- and second-year osteopathic medical students at 5 COMs were surveyed regarding the presence and absence of tender points found on themselves by fellow students. Demographic information, weight, and history of pain and trauma data were collected. The McNemar test was used to compare the frequency of positive tender points between the right and left sides. Multiple logistic regression models were fit to the data to determine if participant characteristics were related to having 1 or more positive tender points in a tender point group. Wilcoxon signed rank tests were used to compare the percentage of positive anterior vs posterior tender points. Multiple logistic regression models were used to test for differences between COMs after accounting for differences in participant characteristics.

RESULTS

Frequency of 78 tender point groups was obtained. Forty tender point groups (51%) were positive for the presence of 1 or more tender points by 50% or more of the participants. Positive tender points were more common on the right side for 23 groups (all P<.001). Female participants were more likely to have tender points for 22 groups (all P<.001). The 20- to 25-year-olds had more tender points for 6 groups (all P≤.03). Tender points were more common in participants with a history of pain for 29 groups (all P<.001) and with a history of trauma for 4 groups (all P≤.05). Anterior tender points were more common for cervical, thoracic, rib, and lumbar body regions (P<.001). Differences were found between COMs for all tender point groups (P≤.02).

CONCLUSION

Nearly half of the tender point groups surveyed were reported positive by 50% or more of participants, and high-yield tender points were found in each body region. Ultimately, these results may guide counterstrain curricula for COMs.

Closure of autobiographical memories: The effects of written recounting from first- or third-person visual perspective

Autobiographical memories are recalled with varying degrees of psychological closure. Closure is a subjective assessment of how far a remembered experience feels resolved, and it has been suggested that one predictor of closure is the amount of emotional detail in the memory. Study 1 examined which aspect of emotional detail is important for closure, and showed that open and closed negative memories were distinguished by ratings of emotion evoked during recall, not by remembered emotion from the time of the event. The recall of open memories was accompanied by more intense, more negative, and less positive emotion than the recall of closed memories. Biased retelling of memories has been shown to influence closure and on the basis of evidence that third-person recall serves a distancing function, Study 2 examined whether instructions to repeatedly recount an open memory from a third-person perspective would increase closure compared with a single or repeated recounting from a first-person perspective. While repeated third-person recounting had the greatest influence on closure, there were also increases in the first-person recounting groups. The results suggest that closure can be increased by reporting memories in written narrative form, particularly if repeatedly expressed from the third-person perspective.

Correlates and phenomenology of first and third person memories

The present research addressed fundamental questions about the visual perspective of autobiographical memories: Are stable personality characteristics associated with visual perspective? Does visual perspective influence the memory's phenomenological qualities? Participants in Study 1 (N=1684) completed individual-difference measures and indicated the perspective from which they generally retrieve memories. Participants in Study 2 (N=706) retrieved a memory from their natural or manipulated perspective, rated its phenomenology, and completed the same individual-difference measures. Dissociation and anxiety were associated with third person retrieval style; the Big Five personality traits were primarily unrelated to perspective. Compared to third person memories, naturally occurring first person memories were higher on Vividness, Coherence, Accessibility, Sensory Detail, Emotional Intensity, and Time Perspective, and lower on Distancing; manipulating perspective eliminated these differences. Visual perspective is associated with clinically relevant constructs and, although associated with the memory's phenomenology, perspective does not shape it.

I can see it both ways: first- and third-person visual perspectives at retrieval

The number of studies examining visual perspective during retrieval has recently grown. However, the way in which perspective has been conceptualized differs across studies. Some studies have suggested perspective is experienced as either a first-person or a third-person perspective, whereas others have suggested both perspectives can be experienced during a single retrieval attempt. This aspect of perspective was examined across three studies, which used different measurement techniques commonly used in studies of perspective. Results suggest that individuals can experience more than one perspective when recalling events. Furthermore, the experience of the two perspectives correlated differentially with ratings of vividness, suggesting that the two perspectives should not be considered in opposition of one another. We also found evidence of a gender effect in the experience of perspective, with females experiencing third-person perspectives more often than males. Future studies should allow for the experience of more than one perspective during retrieval.

When the "I" looks at the "Me": autobiographical memory, visual perspective, and the self

This article presents a theoretical model of the self processes involved in autobiographical memories and proposes competing hypotheses for the role of visual perspective in autobiographical memory retrieval. Autobiographical memories can be retrieved from either the 1st person perspective, in which individuals see the event through their own eyes, or from the 3rd person perspective, in which individuals see themselves and the event from the perspective of an external observer. A growing body of research suggests that the visual perspective from which a memory is retrieved has important implications for a person's thoughts, feelings, and goals, and is integrally related to a host of self-evaluative processes. We review the relevant research literature, present our theoretical model, and outline directions for future research.

A memory-based model of posttraumatic stress disorder: evaluating basic assumptions underlying the PTSD diagnosis

In the mnemonic model of posttraumatic stress disorder (PTSD), the current memory of a negative event, not the event itself, determines symptoms. The model is an alternative to the current event-based etiology of PTSD represented in the Diagnostic and Statistical Manual of Mental Disorders (4th ed., text rev.; American Psychiatric Association, 2000). The model accounts for important and reliable findings that are often inconsistent with the current diagnostic view and that have been neglected by theoretical accounts of the disorder, including the following observations. The diagnosis needs objective information about the trauma and peritraumatic emotions but uses retrospective memory reports that can have substantial biases. Negative events and emotions that do not satisfy the current diagnostic criteria for a trauma can be followed by symptoms that would otherwise qualify for PTSD. Predisposing factors that affect the current memory have large effects on symptoms. The inability-to-recall-an-important-aspect-of-the-trauma symptom does not correlate with other symptoms. Loss or enhancement of the trauma memory affects PTSD symptoms in predictable ways. Special mechanisms that apply only to traumatic memories are not needed, increasing parsimony and the knowledge that can be applied to understanding PTSD.