Cognitive bias modification: induced interpretive biases affect memory

Previous research has shown that it is possible to experimentally induce interpretive biases using ambiguous scenarios. This study extends past findings by examining the effects of cognitive bias modification for interpretation on subsequent scenario recall. Participants were trained to interpret emotionally ambiguous passages in either a positive or negative direction. Transfer of the training to novel scenarios was tested. After training, participants were also asked to recall details from these novel scenarios. The results indicate that the training was effective in inducing the intended group differences in interpretive bias. Importantly, participants exhibited memory biases that corresponded to their training condition. These results suggest that manipulating interpretive biases can result in corresponding changes in memory. Findings from this study highlight the importance of future research on the relation among cognitive biases and on the possibility of modifying cognitive biases in emotional disorders.     

Superordinate goals and intergroup behaviour: The effect of role ambiguity and status on intergroup attitudes and task performance

An experiment examined the effects of role ambiguity and relative group status in an intergroup situation where a superordinate goal was salient. One-hundred-and-fifty-six subjects in groups of three undertook a cooperative task under conditions where the groups' roles were clearly Different, Similar, or not allocated (Control). In addition, the groups' perceived competence at the task was either equally High, equally Low, or unequal. Financial rewards were contingent on successful completion of the joint task. Two contrasting hypotheses were derived from Social Identity Theory: one (H1) predicted most favourable intergroup attitudes in the Control condition where lack of any clear differentiation in group roles might facilitate a superordinate identifcation. In contrast, (H2) predicted least favourable attitudes in this condition on the grounds that groups lacked a distinctive identity. Support for the second hypothesis was found since friendliness towards the outgroup decreased with increasing role ambiguity. The status variable also had consistent effects. As predicted, mutual evaluations tended to reflect the consensually agreed status differences: least bias being shown towards high status outgroups, most by high status ingroups. Task performance was also affected by role ambiguity. Judges' ratings of the group products were found to be more favourable as role ambiguity increased, in contrast to the friendliness data. The implications of these findings for Social Identity Theory, the Contact Hypothesis, and theories of group performance are discussed.     

Emotional states and memory biases: effects of cognitive priming and mood

Recent studies have shown that naturally occurring and experimentally induced affect states enhance the accessibility to retrieval of memories of life experiences that are congruent in valence with the affect state. Previous studies have suggested that this memory bias results from the influence of affective processes on memory retrieval. In our study we manipulated mood state by having subjects read statements expressing positive or negative self-evaluative ideas or describing somatic states that often accompany positive or negative mood states. The somatic and self-evaluative statements had, in general, equally strong effects on mood state. In spite of this, however, the self-evaluative statements had a stronger impact on recall latencies for life experiences than did the somatic statements. Moreover, the impact of the self-evaluative, but not the somatic, statements on recall was found to be independent of the statements' effects on mood state. This suggests that the cognitions accompanying a mood-altering experience may have a substantial effect on the capacity of the mood state to influence memory retrieval.     

Selective memory biases in individuals' memory for health-related information and behavior recommendations

Behavior change is central to both prevention and treatment of many chronic diseases. Frequently, however, individuals do not initiate the behavior change recommendations suggested by health professionals. One explanation for low rates of compliance with such recommendations may be selective memory biases in favor of information supporting the idea that one is healthy. Two studies examined whether memory for health information would be biased by preexisting health beliefs. In the first study (N?=?113), individuals' attitudes about the value of alcohol consumption influenced their memory for pro- versus anti-alcohol information. Participants showed better memory for information supporting their attitudes. In Study 2 (N?=?50), memory for behavioral recommendations depended on participants' behavioral practices. Participants displayed better memory for behavioral recommendations consistent with the idea that they were healthy than for recommendations which challenged those beliefs. These findings illustrate an additional manner in which selective processing can affect health promotion efforts, suggest that a motivation to maintain existing health beliefs may underlie the memory differences, and demonstrate that there may be value in developing efforts to ensure that people remember potentially threatening health recommendations.     

Eyewitness memory for a touching experience: accuracy differences between child and adult witnesses

Children, ages 5-6 and 9-10 years, and adults spent 6 min with a man (toucher) who administered a test that required interpersonal touch. The test was briefly interrupted by a woman (intruder). Afterward, the participant-witnesses provided a memory report that included free recall, answers to objective-memory questions, and two lineup identifications. Relative to the adults and older children, the 5- to 6-year-olds gave less complete free recall and made more errors in answering objective questions about the features and actions of the toucher and the intruder. On recognition tests, both the 5- to 6- and 9- to 10-year-olds were somewhat less likely than adults to make accurate lineup decisions about the toucher and much less likely to accurately identify the briefly seen intruder. Children may remember even salient stimuli and actions more poorly than adults do, but there was no evidence that children misremembered touches that did not occur.     

Maintaining stereotypes in communication: Investigating memory biases and coherence-seeking in storytelling

When communicating, a general tendency exists for people to transmit more stereotype consistent (SC) than inconsistent (SI) information. Although some communicative factors have been shown to play a role, it is still not yet known the extent to which general memory biases (i.e. independent of communicative context) contribute to this phenomenon. To examine this issue, and to explore further mechanisms of the bias, the present paper presents quantitative and qualitative data of an experiment involving the transmission of a stereotype-relevant story through 20 four-person chains using the method of serial reproduction. An SC bias emerged when participants had an intention to communicate but not when they reproduced the story from memory with no such intention. Results also suggest that trying to tell a coherent story may be one further factor that contributes to the bias. These and other findings were discussed in terms of the role of communicative processes in maintaining stereotypes.     

Interviewing intoxicated witnesses: Memory performance in theory and practice

Memory encoding and recall involving complex, effortful cognitive processes are impaired by alcohol primarily due to impairment of a select few, but crucial, cortical areas. This review shows how alcohol affects some, but not all, aspects of eyewitnesses' oral free recall performance. The principal results, so far, are that: a) free recall reports by intoxicated witnesses (at the investigated BAC‐levels) may contain less, but as accurate, information as reports by sober witnesses; b) immediate reports given by intoxicated witnesses may yield more information compared to reports by sober witnesses given after a one week delay; c) an immediate interview may enhance both intoxicated and sober witnesses' ability to report information in a later interview; and d) reminiscence seems to occur over repeated interviews and the new information seems to be as accurate as the previously reported information. Based on this, recommendations are given for future research to enhance understanding of the multifaceted impact of alcohol on witnesses' oral free recall of violent crimes.     

A comparison of attentional biases and memory biases in women with social phobia and major depression

Cognitive processes play an important role in the etiology and maintenance of anxiety and depression. Current theories differ, however, in their predictions regarding the occurrence of attentional biases and memory biases in depression and anxiety. To allow for a systematic comparison of disorders and cognitive processes, 117 women (35 with generalized social phobia, 27 with major depression, and 55 healthy controls) participated in a test of visual attention (visual search), an explicit memory test (free recall), and an implicit memory test (anagram solving). Both clinical groups exhibited attentional biases for disorder-related words, whereas only depressed participants showed clear evidence of explicit and implicit memory biases. The implications of these results for competing theories are discussed.     

Corresponding delay-dependent biases in spatial language and spatial memory

The present study addresses the relationship between linguistic and non-linguistic spatial representations. In three experiments we probe spatial language and spatial memory at the same time points in the task sequence. Experiments 1 and 2 show analogous delay-dependent biases in spatial language and spatial memory. Experiment 3 extends this correspondence, showing that additional perceptual structure along the vertical axis reduces delay-dependent effects in both tasks. These results indicate that linguistic and non-linguistic spatial systems depend on shared underlying representational processes. In addition, we also address how these delay-dependent biases can arise within a single theoretical framework without positing differing prototypes for linguistic and non-linguistic spatial systems.     

Explicit and implicit memory biases in depression and panic disorder

The purpose of the present study was to investigate the presence of a bias for emotional information (panic-related, depression-related, positive and neutral) in explicit memory and implicit memory (by means of free recall and word-stem completion tasks, respectively) among depressed (N=20) and panic (N=20) patients. Three different encoding conditions (graphemic, semantic and self-reference) were used. The results of this study failed to show the existence of a mood-congruent memory bias for both implicit and explicit memory in these emotional disorders. According to the correlational analyses performed, differences among categories of emotional words meant less than the difference among various types of encoding and memory bias in order to differentiate among groups.     

Thought suppression and memory biases during and after depressive moods

Previous research indicates that formerly depressed individuals engage in high levels of thought suppression that can mask depressive cognitions. However, suppression may also ironically foster a vigilance for unwanted thoughts that promotes uncertainty about ambiguous information and distorts memory. The present study tested this possibility. Formerly dysphoric, currently dysphoric, and never-dysphoric participants listened to a series of statements describing life events that were positive, negative, or ambiguous. In a subsequent recognition phase, participants reviewed a series of statements and rated each for the likelihood that it had been presented earlier. The recognition list included positive and negative disambiguated versions of the original items. Compared to the never-dysphoric group, formerly dysphoric individuals were more likely to endorse negative disambiguations. As predicted, this bias was associated with higher levels of thought suppression and greater uncertainty about the meaning of ambiguous situations, suggesting an ongoing conflict between positive and negative thoughts.     

Causal explanations of male and female academic performance as a function of sex-role biases

The study was designed to assess whether attributions of causality vary as a function of sex-role attitudes. Thirty-two male and thirty-two female undergraduates were presented with one of four story completions about a medical student in which sex of the student and success versus failure were varied. Subjects were asked to account for the medical student's success (or failure) in terms of ability, motivation, ease of the goal, and luck. Results suggest that attributions do vary as a function of sex-role attitudes, as measured by the Attitudes Toward Women Scale. Subjects with liberal attitudes were less likely to offer sex-biased attributions about lack of motivation. Subjects' attributions with respect to lack of ability suggest, however, that sex-typed notions about competence may still be deeply ingrained despite recent social changes.The author would like to thank Cheryl Sharp and Robin Koenig for their assistance in compiling the data for this project, as well as Robert Heaton, James Gumina, and Louise Bickman for their editoral comments.     

Attention and memory biases toward body-related images among restrained eaters

This study examined biases in attention and memory toward body-related images among restrained (n = 31) and unrestrained (n = 29) eaters. Attentional allocation to images of thin and overweight bodies during a visual search task was measured by tracking participants’ eyegaze. This task was followed by a recognition test assessing participants’ memory for those images. Restrained and unrestrained eaters allocated more attention to body-related images than to control images, but there was no difference in attentional allocation between the two groups. Restrained eaters showed better recognition of body-related images that they had previously seen during the visual search task. Finally, increased attention was associated with better recognition of body-related images for both restrained and unrestrained eaters, but restrained eaters had better overall recognition regardless of the level of attention. These findings suggest that restrained eaters may have more organized strategies for processing body-related information than do unrestrained eaters.     

Tuning perception: Visual working memory biases the quality of visual awareness

Studies of consciousness reveal that it is possible to manipulate subjective awareness of a visual stimulus. For example, items held in visual working memory (VWM) that match target features increase the speed with which the target reaches visual awareness. To examine the effect of VWM on perception, previous studies have mainly used coarse measures of awareness, such as present/absent or forced-choice judgments. These methods can reveal whether or not an individual has seen an item, but they do not provide information about the quality with which the item was seen. Using continuous report methods it has been shown that the fidelity of a perceived item can be affected by whether or not that item is masked. In the present study, we used an object-substitution masking task to examine whether items held in VWM would influence the quality with which a masked target reached awareness, or whether the threshold for awareness was instead affected by stimuli held in memory. We observed that targets matching the contents of VWM were recalled with greater precision compared to items that did not match the contents of VWM. Importantly, this effect occurred without affecting the likelihood of the target being perceived. These results suggest that VWM plays a greater role in modulating the fidelity of perceived representations than in lowering the overall threshold of awareness.     

A review of cognitive biases in youth depression: attention,interpretation and memory

Depression is one of the most common mental health problems in childhood and adolescence. Although data consistently show it is associated with self-reported negative cognitive styles, less is known about the mechanisms underlying this relationship. Cognitive biases in attention, interpretation and memory represent plausible mechanisms and are known to characterise adult depression. We provide the first structured review of studies investigating the nature and causal role of cognitive biases in youth depression. Key questions are (i) do cognitive biases characterise youth depression? (ii) are cognitive biases a vulnerability factor for youth depression? and (iii) do cognitive biases play a causal role in youth depression? We find consistent evidence for positive associations between attention and interpretation biases and youth depression. Stronger biases in youth with an elevated risk of depression support cognitive-vulnerability models. Preliminary evidence from cognitive bias modification paradigms supports a causal role of attention and interpretation biases in youth depression but these paradigms require testing in clinical samples before they can be considered treatment tools. Studies of memory biases in youth samples have produced mixed findings and none have investigated the causal role of memory bias. We identify numerous areas for future research in this emerging field.     

Age differences in memory performance and memory ratings as measured in a sample survey

Age differences in memory performance were studied in a probability sample of a cross-section of 1,491 adults living in the Detroit metropolitan area, with an oversample of those age 60 and older. Both a recall and a recognition measure were adapted to the survey context by querying respondents about the nature of the questions asked in an immediately preceding interview. Subjective memory assessment was also measured, using global memory ratings performed by the respondent, his or her spouse, and the interviewer. A clear, age-related decline in memory performance was found in this population sample. Subjective memory assessment also declined across age groups, but the relation was weaker. On the basis of multiple regression analyses of the recognition measure and the respondent's self-rated memory, which were judged to have the best measurement qualities, a substantial part of these age differences can be accounted for by differences in sociodemographic composition between age groups, by cognitive functioning and physical health.     

Revisiting the looking at nothing phenomenon: Visual and semantic biases in memory search

When visual stimuli remain present during search, people spend more time fixating objects that are semantically or visually related to the target instruction than looking at unrelated objects. Are these semantic and visual biases also observable when participants search within memory? We removed the visual display prior to search while continuously measuring eye movements towards locations previously occupied by objects. The target absent trials contained objects that were either visually or semantically related to the target instruction. When the overall mean proportion of fixation time was considered, we found biases towards the location previously occupied by the target, but failed to find biases towards visually or semantically related objects. However, in two experiments the pattern of biases towards the target over time provided a reliable predictor for biases towards the visually and semantically related objects. We therefore conclude that visual and semantic representations alone can guide eye movements in memory search, but that orienting biases are weak when the stimuli are no longer present.     

Mood-congruent attention and memory bias in dysphoria: Exploring the coherence among information-processing biases

Recent studies indicate that depression is characterized by mood-congruent attention bias at later stages of information-processing. Moreover, depression has been associated with enhanced recall of negative information. The present study tested the coherence between attention and memory bias in dysphoria. Stable dysphoric (n = 41) and non-dysphoric (n = 41) undergraduates first performed a spatial cueing task that included negative, positive, and neutral words. Words were presented for 250 ms under conditions that allowed or prevented elaborate processing. Memory for the words presented in the cueing task was tested using incidental free recall. Dysphoric individuals exhibited an attention bias for negative words in the condition that allowed elaborate processing, with the attention bias for negative words predicting free recall of negative words. Results demonstrate the coherence of attention and memory bias in dysphoric individuals and provide suggestions on the influence of attention bias on further processing of negative material.