Does anxiety lead to selective processing of threat-related information?

Four experiments investigating the detailed nature of the attentional bias in anxiety are reported. Previous research using the Stroop task has shown that, when compared with non-patient controls, anxious patients are relatively slower at colour naming threat-related words than non-threat words. Experiments One and Two investigated whether this apparent attentional bias is a function of anxiety per se and/or is related to patient/non-patient status. Experiment One compared colour-naming times for threat and non-threat words in low, medium and high trait anxiety normal subjects. High anxiety was not associated with slower colour-naming times for threat words. Experiment Two compared generalized anxiety disorder patients with equally anxious non-patients and found that the patients were significantly slower at colour-naming threat words. Read aloud and dwell tasks were also included in these experiments in order to identify the mechanism of Stroop interference. Experiments Three and Four investigated whether anxious patients' attentional bias is specific to threat-related material or also extends to certain positive, emotional material. In Experiment Three words used in previous Stroop studies were rated for emotionality. Threat words were more emotional, as well as more threatening, than control words, indicating that previous studies have confounded threat and emotionality. Experiment Four compared colour-naming times for threat words, equally emotional positive words, and neutral words. Consistent with the emotionality hypothesis, generalized anxiety disorder patients were slower than non-anxious controls at colour naming both threat words and positive words. The theoretical, methodological and clinical implications of these results are discussed.     

Biased cognitive operations in anxiety: Accessibility of information or assignment of processing priorities?

There is considerable evidence that anxiety is associated with a cognitive bias favouring the processing of threat-related information. Bower's (1981) network model attributes this bias to the enhanced availability of mood congruent information from memory. However, certain experimental tasks do not reveal such a bias, when this effect is strongly predicted by the model. We note that all tasks which have demonstrated such mood congruent processing effects in anxious subjects share the requirement that these subjects must assign priorities to simultaneously available, and differentially valenced, alternative processing options. This feature has been consistently lacking in those paradigms we have found insensitive to the influence of anxiety. It is therefore suggested that anxiety is associated with the assignment of high processing priorities to threat-related options, rather than with the facilitated availability of threat-related information from memory. This proposal was experimentally tested using a lexical decision task, which is sensitive to the accessibility of information from memory, under conditions which either do or do not introduce the requirement to assign priorities to alternative processing options. The results indicate that the facilitated processing of threat related stimulus words, shown by generalised anxiety patients, does indeed appear to reflect a bias in the assignment of processing priorities, rather than the enhanced availability of this information from memory.     

Multiple bottlenecks in information processing? An electrophysiological examination

When two stimuli are to be processed in rapid succession, reaction time (RT) to the second stimulus is delayed. The slowing of RT has been attributed to a single processing bottleneck at response selection (RS) or to a central bottleneck following the initiation of the first response. The hypothesis of a response initiation bottleneck is mainly based on reports of underadditive interactions between stimulus onset asynchrony (SOA) and the number of stimulus—response alternatives (simple vs. two-choice response). The present study tested the hypothesis of a response initiation bottleneck by recording the lateralized readiness potential (LRP), a brain wave, emerging during or immediately following RS. The LRP findings were consistent with a central bottleneck but did not support the late bottleneck hypothesis. Instead, the LRP provided direct evidence that the underadditive interaction of number of alternatives and SOA is due to an increase of response anticipations in the simple response condition.     

Visual–auditory interactions on explicit and implicit information processing

Cognitive Processing - Interactions among sensory information are important for generating a coherent percept of the external world. Facilitation and inhibition effects in cross-modal perception...     

International federation for information processing’s framework for computer ethics

This paper reviews codes of ethics and codes of conduct from different countries. The differences and similarities between code content and between attitudes are considered. Distinction is drawn between a code of ethics and a code of conduct. Recommendations are made for establishing a common framework for IFIP (International Federation for Information Process) Member or Affiliate Societies.     

Effects of interpolated processing on experts’ recall of schematic information

The present study, using schematic sport diagrams, examined the perceptual chunking hypothesis (Chase & Simon, 1973a; 1973b) that visual patterns are represented by labels in a limited-capacity, short-term memory. This study, which employed three subject-skill levels and an interpolated processing paradigm, indicated that for experts, information extracted during an 8-second study period has great longevity and durability. Interpolated processing demands, along with an additional encoding activity of a second diagram presentation, had minimal effects on recall performance. This evidence supports the position that meaningful and familiar information abstracted during a brief exposure period is immediately processed in long-term memory, thus facilitating subsequent retrieval.     

Emotional information processing in repressors: The vigilance–avoidance theory

A vigilance–avoidance theory of the repressive coping style (low trait anxiety and high defensiveness) is presented. The new theory attempts to account for several key findings, including the discrepancy between low self-reported anxiety and high behavioural and physiological indicators of anxiety shown by individuals with a repressive coping style. According to the theory, repressors have an initial rapid vigilant response triggering behavioural and physiological responses and involving attentional and interpretive biases to self-relevant threat stimuli. These biases may be based on negative self-relevant schematic information. This initial vigilant stage is followed by an avoidance stage involving avoidant cognitive biases (attentional, interpretive, and memory) that inhibit the conscious experience of anxiety. Future research should examine systematically the time course of repressors’ reactions to threatening and non-threatening stimuli.     

When can a lack of structure facilitate strategic processing of information?

Background: Researchers examining the effectiveness of an elaboration strategy (answering ‘why’) for learning new information have been concerned with the familiarity of the materials and how that affects learning. It may be, however, that both how information is organised and familiarity impact on the potency of the strategy. Aims: We examined the influence of presentation structures (i.e., organisation of information) on the effectiveness of an elaboration strategy. Samples: All participants were undergraduates (78 females, 67 males) enrolled in a first‐year psychology course. Fifteen students participated in Experiment One, 42 students in Experiment Two, and 88 students in Experiment Three. Methods: In Experiment One, preference for conceptual organisation was assessed. In Experiments Two and Three, students answered ‘why’ questions when different presentation structures were used. Results: Students' preferred method of organisation did not match the imposed structure found in past research, suggesting that students may have been restricted in their ability to process the information distinctively. Students who were presented with the information in a random order achieved the largest memory scores. Conclusions: When students have to reconstruct as well as encode the information, these added task demands provide an added benefit for learning.     

Can auditory deviant stimuli temporarily suspend cognitive processing? Evidence from patients with anxiety

While anxiety is typically thought to increase distractibility, this notion mostly derives from studies using emotionally loaded distractors presented in the same modality as the target stimuli and tasks involving crosstalk interference. We examined whether pathological anxiety might also increase distractibility for emotionally neutral irrelevant sounds presented prior to target stimuli in a task where these stimuli do not compete for selection. Patients with anxiety and control participants categorized visual digits preceded by task-irrelevant sounds that changed on rare trials (auditory deviance). Both groups exhibited an equivalent increase in response times following a deviant sound but patients showed a reduction of response accuracy, which was entirely due to an increase in response omissions. We conclude that the involuntary capture of attention by unexpected stimuli may, in patients with anxiety, result in a temporary suspension of cognitive activity.     

Biased cognitive operations in anxiety: artefact, processing priorities or attentional search?

It has been shown that, under certain circumstances, anxiety is associated with a processing bias favouring threatening information. To explain why this bias is apparent only on certain cognitive tasks, it has recently been proposed that the bias operates only when there is competition for processing resources. The present study sought to replicate previous evidence for the 'competition' hypothesis, while taking into account a potential confounding factor of word categorization in the stimulus materials. Anxious patients and normal controls were compared on their lexical decision times for threatening, categorized neutral and uncategorized neutral words that were presented either alone or accompanied by irrelevant nonword stimuli (i.e. absence vs presence of competition). The results were only partially consistent with previous findings and highlighted the importance of considering separately the effects of word valence and word categorization. When the latter was taken into account, the results indicated that an anxiety-related bias was only evident when there was competition for processing resources and when the information was presented outside the focus of Ss' attention. A modified version of the competition hypothesis was proposed in the light of these results and previous research into attentional biases in anxiety.     

Is speed of information processing related to fluid or to crystallized intelligence?

Speed of information processing was examined in relation to the theory of fluid and crystallized intelligence. Sixty sixth grade children completed the Standard Progressive Matrices test and the Mill Hill Vocabulary scale, both untimed, as measures of fluid and crystallized intelligence, and three RT tasks: Memory Scanning, Picture Identification, and Sentence-Picture Comparison. As predicted, RT parameters, with the exception of slope on two tasks, were negatively correlated with scores on both tests. There were no consistent differences between the two tests in the size of correlations with RT, and partial correlations, eliminating the effects of fluid and crystallized intelligence respectively, failed to support any causal relationship between fluid and crystallized intelligence in either direction. Some limitations of the research, specifically in the possible effect of error rates on the speed-intelligence relationship, and in the application to individuals of task parameters derived from group performance, are noted.     

Do dichotic listening procedures measure lateralization of information processing or retrieval strategy?

The data from two dichotic studies, both of which evaluated spontaneously generated response strategies under free recall and one of which also manipulated retrieval strategy by instruction, supported a conception that what dichotic procedures mostly measure are response strategies—mobile and readily deployed without loss of mnemonic capability. Consequently, competitional methods which are heavily influenced by output factors appear to be unreliable as a means of evaluating input processing dominance.     

Tracking the first two seconds: three stages of visual information processing?

We compared visual priming and comparison tasks to assess information processing of a stimulus during the first 2 s after its onset. In both tasks, a 13-ms prime was followed at varying SOAs by a 40-ms probe. In the priming task, observers identified the probe as rapidly and accurately as possible; in the comparison task, observers determined as rapidly and accurately as possible whether or not the probe and prime were identical. Priming effects attained a maximum at an SOA of 133 ms and then declined monotonically to zero by 700 ms, indicating reliance on relatively brief visuosensory (iconic) memory. In contrast, the comparison effects yielded a multiphasic function, showing a maximum at 0 ms followed by a minimum at 133 ms, followed in turn by a maximum at 240 ms and another minimum at 720 ms, and finally a third maximum at 1,200 ms before declining thereafter. The results indicate three stages of prime processing that we take to correspond to iconic visible persistence, iconic informational persistence, and visual working memory, with the first two used in the priming task and all three in the comparison task. These stages are related to stages presumed to underlie stimulus processing in other tasks, such as those giving rise to the attentional blink.     

How do I appear to others? Social anxiety and processing of the observable self

Two information processing biases that could maintain social anxiety were investigated. High and low socially anxious individuals encoded positive and negative trait words in one of three ways: public self-referent, private self-referent, and other-referent. Half were then told they would soon have to give a speech. As predicted, compared to low socially anxious individuals, high socially anxious individuals recalled less positive public self-referent words, but only when both groups were anticipating giving a speech. No memory biases were observed for private self-referent or other-referent words. Next all participants gave a speech. Correlational analyses suggested that high socially anxious individuals may use the somatic concomitants of anxiety to overestimate how anxious they appear and underestimate how well they come across.     

Classical conditioning and information processing: Different mechanism for prepared and unprepared stimuli?

Although learning without awareness conflicts with recent theories of classical human Pavlovian conditioning, there is at least one type of conditioning in which CS-US contingency is processed without awareness—the so-called prepared conditioning. Therefore, presenting a secondary reaction time probe to measure the amount of information processing capacity required should produce interference with the secondary task in unprepared, but not in prepared conditioning, since in the latter information should be processed in parallel. In a previous study, the authors could not find differences between both types of conditioning, neither in reaction time nor in electrodermal indicators of information processing. The present study was conducted to replicate and extend these findings, using a differential autonomic conditioning paradigm. One half of 42 subjects received spider and snake slides as prepared stimuli, while the other half received flower slides as unprepared stimuli. Both kinds of stimuli were used as CS+ and as CS-. An electric shock served as unconditioned stimulus. During 24 acquisition and 24 extinction trials, electrodermal and heart rate responses, as well as reaction times to a probe stimulus, were recorded. The results revealed significant conditioning effects in terms of CS-/CS+ differences. However, no differences were found between prepared and unprepared stimuli, neither in autonomic measures nor in reaction time. Again, our results are in favor of serial information processing in both prepared and unprepared stimuli, suggesting that the so-called prepared conditioning may be treated as a subclass of classical autonomic conditioning instead of forming a specific class of learning.     

The differential similarity of positive and negative information – an affect-induced processing outcome?

People judge positive information to be more alike than negative information. This good-bad asymmetry in similarity was argued to constitute a true property of the information ecology (Alves, H., Koch, A., & Unkelbach, C. (2017). Why good is more alike than bad: Processing implications. Trends in Cognitive Sciences, 21, 69–79). Alternatively, the asymmetry may constitute a processing outcome itself, namely an influence of phasic affect on information processing. Because no research has yet tested whether phasic affect influences perceived similarity among stimuli, we conducted 5 Experiments that also tested whether phasic affect can account for the higher judged similarity among positive compared to negative stimuli. In three experiments, we affectively charged pictures of different Pokemon by pairing them with monetary gains and losses (Exp. 1a, 1b) as well as positive and negative trait words (Exp. 2); yet, the evaluative charge did not differentially influence perceived similarity among the Pokemon. Experiment 3 replicated the basic similarity asymmetry among positive and negative words, and found that it was unaffected by externally induced phasic affect. Experiment 4 showed that phasic affect had no influence on perceived similarity of non-evaluative words either. We conclude that albeit a weak influence of phasic affect on perceived similarity of stimuli cannot be ruled out entirely, it can most likely not account for the typically medium to large sized asymmetry in similarity among positive and negative stimuli.     

Effects of the “intimate conviction” instruction on the processing of judicial information

Introduction and objectiveThe aim of this study was to examine the effects of the “intimate conviction” (IC) instruction on the processing of judicial information. The IC instruction encourages the use of impressions to form a verdict. As such, according to cognitive-experiential self-theory (CEST) (Epstein, 1994), it is more likely to (1) elicit experiential information processing, and (2) bias judgments, compared with instructions prompting the rational and objective processing of information running counter to IC (CIC).Method and resultsNinety-four mock jurors were randomly assigned to one of three experimental conditions (IC, opposite IC and control), and asked to view a video of a criminal appeal hearing, deliver judgments and perform a thought-listing task. Results confirmed that, in the IC and control conditions, participants were more likely to (1) process evidence in an experiential mode, (2) judge the defendant's acts as being more intentional than participants in the opposite IC condition. However, contrary to our expectations, the effects of the instructions on the attribution of intention were not mediated by the information processing mode.ConclusionDirections for future research and the implications of the present study for judicial systems using inquisitorial procedure are discussed.     

Do childhood anxiety measures measure anxiety?

The Fear Survey Schedule for Children-Revised (FSSC-R), Revised-Children's Manifest Anxiety Scale (RCMAS), and the Modified State-Trait Anxiety Inventory for Children (STAIC-M) are three widely used self-report measures of childhood anxiety. While previous studies have established the reliability of these measures, their validity in discriminating anxious from non-anxious youngsters remains to be established. The present study examines the discriminant validity of the three measures by comparing clinic referred samples of boys with an anxiety disorder (n=105) or ADHD (n=59) with a community sample of never-psychiatrically-ill boys (n=49). Results indicated that the two patient groups differed significantly from the never-psychiatrically-ill group on the RCMAS and STAIC-M, but the anxious and ADHD groups did not differ from each other. None of the three groups differed on the FSSC-R. The implications of these findings for the assessment of childhood anxiety disorders are discussed.     

Effect of irrelevant information on the processing of relevant information: Facilitation and/or interference? The influence of experimental design

Previous studies have provided conflicting evidence concerning the question of whether irrelevant information can facilitate the processing of relevant information in a choice reaction time task. Results of the present study demonstrated that indications of facilitation and/or interference were dependent on the context in which baseline trials were administered. Three groups of 24 subjects pressed a left-.or right-hand key in response to the onset of an X or 0 that was accompanied by a monaural or binaural tone. The monaural toneprovided an irrelevant directional cue since, oia some trials, it was ipsilateral to the correct response (corresponding trials), while, on other trials, it was contralateral Inoncorrasponding trials). When binaural (baseline) trials were presented in the same block as the monaural trials, data suggested that the directional cue produced both facilitation and interference. However, when baseline trials were presented in one block, and corresponding and noncorresponding trials were mixed together in another block, data suggested an interference effect only. The difference was attributed to differences in the degree of stimulus uncertainty within a block of trials.