Belief in memories may be relinquished as often for adulthood as for childhood events,but for different reasons

ABSTRACT

The age distribution of nonbelieved memories (NBMs) reported by young and older adults typically reflects a large proportion of events dated to childhood. The present study aimed to further investigate the age of origin of NBMs by using instructions that include an NBM related to adulthood. Participants aged from 40 to 80 years were asked to describe an NBM, to explain why they had stopped believing their memory, and to rate its phenomenal characteristics. Participants also described and rated an age-matched believed memory (BM). The results revealed a similar proportion of nonbelieved events experienced in childhood and adulthood, thus calling into question the hypothesis that NBMs are mainly related to childhood events. We also found that NBMs might emerge for different reasons depending on the time of events. Additional analyses indicated that, overall, the influence of temporal distance on the ratings of phenomenal characteristics was similar for BMs and NBMs.     

A 3.5 year diary study: Remembering and life story importance are predicted by different event characteristics

Forty-five participants described and rated two events each week during their first term at university. After 3.5 years, we examined whether event characteristics rated in the diary predicted remembering, reliving, and life story importance at the follow-up. In addition, we examined whether ratings of life story importance were consistent across a three year interval. Approximately 60% of events were remembered, but only 20% of these were considered above medium importance to life stories. Higher unusualness, rehearsal, and planning predicted whether an event was remembered 3.5 years later. Higher goal-relevance, importance, emotional intensity, and planning predicted life story importance 3.5 years later. There was a moderate correlation between life story importance rated three months after the diary and rated at the 3.5 year follow-up. The results suggest that autobiographical memory and life stories are governed by different mechanisms and that life story memories are characterized by some degree of stability.     

Remembering events related to close relationships,self-growth,and helping others: Intrinsic autobiographical memories,need satisfaction,and well-being

The present research examined the relationships between memories with intrinsic versus non-intrinsic themes, need satisfaction, and well-being. In Study 1, participants (n = 244) who included intrinsic themes when asked to describe an autobiographical memory reported greater well-being than participants who did not. The degree of need satisfaction characterizing these memories mediated the relationship between intrinsic memories and well-being. In Study 2, participants (n = 126) were assigned to describe a memory characterized by intrinsic (e.g., helping others) or extrinsic (e.g., popularity) values. Need satisfaction characterizing the intrinsic, but not extrinsic, memories, was associated with well-being. Describing an intrinsic (but not an extrinsic) memory positively increased situational well-being. Need satisfaction in the intrinsic memories predicted the subsequent increase in well-being.     

Agreeableness and brain activity during emotion attribution decisions

Within the Big 5 model of personality, Agreeableness is a trait-dimension associated with the tendency to behave prosocially; highly agreeable people tend to be highly cooperative and altruistic. This study was designed to test for associations between Agreeableness and the way people decide the cause of another person’s emotional reaction (emotion attribution). Behavioral and neuroimaging (fMRI) data were collected while participants (n = 72) performed an emotional attribution task. During the emotion attribution task, participants decided which of two social–emotional scenes they believed caused another person’s emotional reaction. Converging evidence indicated that highly agreeable people tend to make emotional attribution decisions more quickly and exhibit greater temporoparietal junction activity during emotion attribution decisions, compared to low agreeable people.     

Adversity in adolescence predicts personality trait change from childhood to adulthood

This study examined whether cumulative adversity in adolescence predicted changes in the Big Five traits from childhood to adulthood in the Project Competence Longitudinal Study sample (N = 205) followed from childhood (age 10) through adolescence into adulthood (age 30). Personality traits were measured in childhood through multiple methods and in adulthood by self-report. Cumulative adversity, assessed in adolescence, differentiated independent adversity (likely unrelated to participants’ behavior) from dependent adversity (resulting from participants’ own behavior). Participants’ personality traits were modestly stable over 20 years, although Openness showed greater stability. Independent and dependent adversity predicted increases in Negative Emotionality/Neuroticism, and dependent adversity predicted decreases in Constraint/Conscientiousness and Agreeableness from childhood to adulthood, suggesting that cumulative adversity shapes personality development in young people.     

Indirect cueing elicits distinct types of autobiographical event representations

Studies that distinguish among believed memories, believed-not-remembered events (e.g., family stories), and nonbelieved memories (i.e., memories no longer believed to have occurred) typically rely on experimenter provided or overtly elicited events. These methods may mis-estimate the frequency and nature of such events in everyday memory. Three studies examined whether such events would be elicited via indirect cueing. Participants recalled and rated events on autobiographical belief, recollection, and other characteristics associated with remembering. All three event types resulted, but with a low rate of nonbelieved memories. Believed and nonbelieved memories received similar perceptual and re-experiencing ratings, and both exceeded believed-not-remembered events. Lifespan cueing found nonbelieved memories to be most frequent in middle childhood (ages 6–11). Cueing for “events” vs. “memories” revealed that “memory” cues lead to retrieval of a more homogeneous set of events and differences when predicting autobiographical belief and recollection. These studies support the distinction between autobiographical belief and recollection for autobiographical events.     

The influence of cognitive and emotional suppression on overgeneral autobiographical memory retrieval

Over-general autobiographical memory (OAM) retrieval is characterized by retrieval of categoric autobiographical memories. According to the CarFAX model, this tendency may result from avoidance which functions to protect the person against recalling details of upsetting memories. This study tested whether avoidance strategies impact on the ability to retrieve specific autobiographical memories. Healthy participants (N = 51) watched a negative video clip and were instructed to either suppress any thought (thought suppression), suppress any feeling (emotional inhibition), or think and feel naturally (controls) in response to the video. Participants then completed the Autobiographical Memory Test. Participants engaging in either thought suppression or emotional inhibition retrieved fewer categoric autobiographical memories than controls. These findings challenge the affect regulation component of the CarFAX model insofar as they suggest that regulatory strategies that aim to reduce awareness of adverse emotional memories do not necessarily lead to increased recall of categoric autobiographical memories.     

Do Cognitive Interview Instructions Contribute to False Beliefs and Memories?

To examine whether exposing people to false events using instructions taken from the cognitive interview creates false beliefs and false memories, we conducted an experiment where participants took part in two sessions. First, they rated how confident they were that they had experienced certain childhood events and their memories of those events; they also rated how plausible they thought the events were. Second, 2 weeks later, participants were exposed to two of three false target events: one high, one moderate, and one low plausibility. For the first event, participants were instructed to either report everything or mentally reinstate the event context. For the second event, participants received both instructions. The third event was the control event about which participants received no instructions. Finally, participants rated their confidence and memories the second time. The results showed that the cognitive interview instructions had little to no effect on the development of false beliefs and false memories. Copyright © 2012 John Wiley & Sons, Ltd.     

Creating nonbelieved memories for bizarre actions using an imagination inflation procedure

The current experiments examined the creation of nonbelieved true and false memories after imagining bizarre and familiar actions using the imagination inflation procedure (Goff & Roediger, 1998). In both experiments, participants took part in three sessions. In Session 1, participants had to perform or imagine simple familiar actions (e.g., “stir the water with the spoon”) and bizarre actions (e.g., “balance the spoon on your nose”). A day later, participants needed to imagine simple actions of which some were new actions, and some were old actions that appeared in the first session. After a week, the participants completed a recognition task. For those actions that were correctly or incorrectly remembered as having been performed, the participant was challenged that the action was not performed in order to evoke nonbelieved true and false memories. In general, we found that the imagination inflation procedure can successfully induce participants to produce nonbelieved memories. In Study 1, we successfully induced nonbelieved memories for bizarre actions, although in general nonbelieved memory rates were low. In Study 2, more participants formed nonbelieved memories for bizarre actions than for familiar actions. Also, we found that especially belief was more susceptible to revision when memories were challenged than recollection. In two experiments, we showed that nonbelieved memories can successfully be induced for both familiar and bizarre actions.     

“Queasy does it”: False alcohol beliefs and memories may lead to diminished alcohol preferences

Studies have shown that false memories can be implanted via innocuous suggestions, and that these memories can play a role in shaping people's subsequent attitudes and preferences. The current study explored whether participants (N = 147) who received a false suggestion that they had become ill drinking a particular type of alcohol would increase their confidence that the event had occurred, and whether their new-found belief would subsequently affect their alcohol preferences. Results indicated that participants who received a suggestion that they had gotten sick drinking rum or vodka before the age of 16 reported increased confidence that the suggested experience had occurred. Moreover, participants who received a false alcohol suggestion also showed a strong trend to report diminished preference for the specified type of alcohol after the false suggestion. Implantation of a false memory related to one's past drinking experiences may influence current drink preferences and could be an important avenue for further exploration in the development of alcohol interventions.     

The relation between memories of childhood psychological maltreatment and Machiavellianism

Machiavellianism is a hot topic in several branches of psychology. Using Life-History Theory several studies identified Machiavellianism as a fast life strategy. According to this idea, Machiavellianism should be related to childhood adversities. Using a sample of adults we investigated the relationship between Machiavellianism and self-reported memories of childhood psychological maltreatment. Participants (247 individuals, 141 female, 32.38 ± 5.43 years of age on average) completed the Mach-IV Scale and the Childhood Abuse and Trauma Scale. Results showed a relationship between neglect and Machiavellianism in general, Machiavellian tactics, and Machiavellian world view. There was also a marginally significant link between punishment and Machiavellian tactics. Results are discussed from a moral developmental perspective and through the alexithymia hypothesis of Machiavellianism.     

Anxiety and intertemporal decision making: The effect of the behavioral inhibition system and the moderation effects of trait anxiety on both state anxiety and socioeconomic status

Based on Gray's theory, which links the behavioral inhibition motivation system (BIS) to the personality trait of “anxiety”, the present study examined whether anxiety (trait vs. state), BIS sensitivity, and family socioeconomic status in childhood (SES) had an interactive or independent impact on intertemporal decision-making processes. The study also investigated whether participants with high trait anxiety had a significantly different choice preference on the immediate but smaller (SS) rewards over the larger but delayed (LL) rewards. Participants (N = 108) were randomly assigned to either the anxiety or the control condition. Results showed that people with a higher BIS score tended to choose less SS rewards. Trait anxiety was found to moderate both state anxiety and childhood SES to influence intertemporal decision processes. We further found high or low trait anxiety significantly influenced people's choice preference. Speculations on the psychological meanings of the findings were discussed from the perspective of biased risk perception. Limitations and implications were also discussed.     

Variability of kinematic graphomotor fluency in adults with ADHD

Although graphomotor differences and variability of performance have been observed in children with attention deficit hyperactivity disorder (ADHD), no study has investigated whether this variability manifests in the kinematic graphomotor domain in adults with ADHD. Fourteen ADHD and 20 control participants wrote a novel grapheme and common word on a digitizing tablet 30 times each, with ADHD participants counterbalanced on and off stimulant medication. Variability of graphomotor fluency was significantly greater in ADHD versus control participants only in the novel writing task, both on, F(1, 31) = 5.988, p = .020, and off stimulant medication, F(1, 32) = 8.789, p = .006. Results suggest that motor control differences in ADHD are not limited to childhood and extend into adulthood. Given sufficient additional research, variability of kinematic graphomotor fluency may increase the sensitivity/specificity of differential diagnoses and/or represent a biomarker for ADHD.     

Involuntary future projections are as frequent as involuntary memories,but more positive

Mental time travel (MTT) is the ability to mentally project oneself into one’s personal past or future, in terms of memories of past events or projections of possible future events. We investigated the frequency and valence of involuntary (spontaneously arising) MTT in the context of high trait worry. High (N = 18) and low (N = 16) worriers recorded the frequency and valence of involuntary memories and future projections using a structured notebook and completed measures probing individual differences related to negative affectivity. Involuntary future projections were as frequent as involuntary memories. We found a positivity bias for both past and future MTT, in that fewer negative events were reported than positive or neutral ones. This positivity bias was greater for future than for past events. Individual differences related to negative affectivity were positively associated with the proportion of negative events, indicating a reduced positivity bias in individuals with a general tendency to experience negative affect.     

Origins of adolescents’ autobiographical memories

Adolescents (N = 46; M = 12.46 years) who had previously participated in a longitudinal study of autobiographical memory development narrated their early childhood memories, interpreted life events, and completed a family history questionnaire and language assessment. Three distinct components of adolescent memory emerged: (1) age of earliest memory and insight into life events; (2) volume of early memories; and (3) density of specific memories from early childhood. Children's language, self-awareness, and theory of mind during early childhood (19–51 months) all contributed to their memories as adolescents. However, adolescents’ early reminiscing environment was the best single predictor of the age and volume of their early memories and their insight into life events. In contrast, adolescents’ delayed self-recognition and reminiscing in early childhood predicted the density of their early memories. These findings provide partial support for theories of autobiographical memory development.