Developmental trends in voluntary selective attention: Differential effects of source distinctness

The study is designed to test the hypothesis that an inability to separate incoming information into discrete messages is a source of young children's relatively poor performance in selective attention tasks. Accordingly, the experiment arranges three conditions of varying distinctness between central and distractor information. The central task consists of a continuous matching task in which the subject is required to track the position of a stick figure. Rate of presentation is manipulable. The effects of the three different distractor types are assessed on individually determined and matched baselines of performance on the central task in the absence of distraction. Kindergarteners, second graders, and fifth graders serve as subjects. Whereas second-grade and fifth-grade children are most accurate when the distinctness of the messages is high, the opposite pattern occurs in kindergarteners. This interaction implicates strategy differences that are age-related. Kindergarteners perform as if the task requires divided attention. Second graders and older children use the more appropriate focusing strategy, but the former have particular difficulty when the messages are not distinct. Equally notable is the second graders' success in focusing when the source discreteness is arranged. The relation between this result and previous reports is also discussed.     

Does working memory capacity predict cross-modally induced failures of awareness?

People often fail to notice unexpected stimuli when they are focusing attention on another task. Most studies of this phenomenon address visual failures induced by visual attention tasks (inattentional blindness). Yet, such failures also occur within audition (inattentional deafness), and people can even miss unexpected events in one sensory modality when focusing attention on tasks in another modality. Such cross-modal failures are revealing because they suggest the existence of a common, central resource limitation. And, such central limits might be predicted from individual differences in cognitive capacity. We replicated earlier evidence, establishing substantial rates of inattentional deafness during a visual task and inattentional blindness during an auditory task. However, neither individual working memory capacity nor the ability to perform the primary task predicted noticing in either modality. Thus, individual differences in cognitive capacity did not predict failures of awareness even though the failures presumably resulted from central resource limitations.     

Depression impairs the ability to ignore the emotional aspects of facial expressions: Evidence from the Garner task

We assessed dysphoric and clinically distressed individuals' ability to ignore the emotional aspects of facial expressions using the Garner speeded‐classification task. Garner's paradigm tests the ability to selectively focus on a single relevant dimension while ignoring variations on other, irrelevant, ones. In the present task, the stimuli were faces of men and women expressing happy, angry, and neutral emotions. In Experiments 1 and 2, dysphoric and nondysphoric participants performed the Garner task, focusing on gender and ignoring emotion (Experiment 1) and focusing on emotion and ignoring gender (Experiment 2). Results suggest that dysphoric individuals exhibited more difficulty ignoring the emotional dimension of social stimuli even under specific instructions to do so than nondysphoric individuals. In Experiments 3 and 4, we replicated these results in clinically distressed and nondistressed individuals. The results of Experiment 3 further suggested that depression was more closely associated with the inability to selectively ignore emotion than was social anxiety. Experiment 4 confirmed that this failure of selective attention was specific to processing emotional, and not gender features. The implications of these findings for cognitive and interpersonal theories of depression are discussed.     

When focusing on a goal interferes with action control: action versus state orientation and over-maintenance of intentions

People vary in action versus state orientation, or the ease versus difficulty by which they can form and enact goals under demanding conditions (Kuhl and Beckmann in Volition and personality: action versus state orientation, Hogrefe, Göttingen, 1994). According to the over-maintenance hypothesis, state-oriented people are prone to think about their intentions in a narrow linguistic format that prevents flexible action control. Two studies tested this hypothesis by manipulating intention focus among action- versus state-oriented participants and examining how well they performed difficult actions. Focusing strongly (rather than weakly) on the task goal led state-oriented participants to make more errors during incongruent trials of a Stroop task (Study 1) and led to greater task-switch costs in response latencies (Study 2). Action-oriented participants showed the reverse pattern, and performed difficult actions more effectively when focusing on the task goal. These findings suggest that focusing on intentions may paradoxically impair action control among state-oriented people.     

Social presence effects on the stroop task: Boundary conditions and an alternative account

Two studies investigated boundary conditions of an effect of social presence on the Stroop task and its interpretation in terms of an attentional view (P. Huguet, M. P. Galvaing, J. M. Monteil, & F. Dumas, 1999). In this view, social presence leads to attentional focusing, enhancing participants’ ability to screen out the distracting features of Stroop stimuli. As predicted, Stroop interference was found to be reduced by social presence, but an alternative account in which social presence exerts an effect on task selection received more support.     

Executive control of thought and action

In addition to processing information about stimuli in the environment, the cognitive system performs executive functions to control and coordinate the processes that deal with environmental stimuli. Several executive functions may be distinguished: (1) Making choices about alternative strategies for processing environmental stimuli; (2) constructing or instantiating a version of the chosen strategy to enable performance on the task; (3) controlling and coordinating execution of the strategy during real-time performance on the task; and (4) disabling or disengaging the strategy in response to changes in goals or changes in the task environment that make the current strategy inappropriate. This paper presents a selective review of research addressing each of these executive functions, focusing on the time and resources used to accomplish each one.     

Progress Toward Understanding the Structure and Determinants of Job Performance: A focus on task and citizenship performance

Job performance criterion models have become more popular and more often investigated. The current research adds to this literature by testing performance models focusing on ability and personality predictors of task and citizenship job performance. Air traffic controllers (N = 928) completed cognitive ability and personality predictor measures, were administered a performance test assessing two possible mediators, and were evaluated using supervisor and peer ratings of two task performance, one citizenship performance, and an overall performance dimension. Path analyses largely confirmed that ability predicts primarily task performance and personality predicts primarily citizenship performance. The mediation related to task knowledge and skill on the task performance side was confirmed, and the overall fit of the performance models was quite good. Discussion focuses on how the present research furthers progress toward mapping relations among individual differences and individual performance constructs, beyond using overall performance as the endogenous performance variable.     

Changing views: the effect of explicit perception-focus instructions on perspective-taking

In two experiments, we examined whether explicit attention to another’s perspective fosters perspective-taking. In the first experiment, we attempted to replicate previous findings showing that a mind-set focusing on self-other differences incites speakers to adopt another’s viewpoint in a subsequent task. However, our results showed that speakers focusing on self-other differences were just as likely to describe an object’s location from their egocentric perspective as speakers focusing on self-other similarities. In the second experiment, we intensified speakers’ awareness of perspectives by explicitly instructing them to regard their own (self-focus) or another’s (other-focus) viewpoint during the perspective-taking task. Participants allocated to the baseline did not receive explicit focus instructions. Findings revealed that other-focused speakers were more likely to adopt another’s perspective than self-focused speakers. However, compared to the baseline, an explicit other-focus did not foster perspective-taking. We conclude that an explicit awareness of perspective differences does not attenuate speakers’ egocentricity bias.     

Organizational and spatial dynamics of attentional focusing in hierarchically structured objects

Is the focusing of visual attention object-based, space-based, both, or neither? Attentional focusing latencies in hierarchically structured compound-letter objects were examined, orthogonally manipulating global size (larger vs. smaller) and organizational complexity (two-level structure vs. three-level structure). In a dynamic focusing task, participants successively identified the global and local letters in the same trial. Overall response latencies were generally longer for larger versus smaller global objects and for three-level versus two-level object structure, indicating that attentional focusing time increases both with the magnitude of change in attentional aperture size and with the number of traversed levels of object structure. Additional experiments showed that this pattern is unique to tasks that require dynamic attentional focusing. Taken together, the results support a hierarchical object-based-spatial model of attentional focusing.     

Why is it so hard to do my work? The challenge of attention residue when switching between work tasks

In many jobs, employees must manage multiple projects or tasks at the same time. A typical workday often entails switching between several work activities, including projects, tasks, and meetings. This paper explores how such work design affects individual performance by focusing on the challenge of switching attention from one task to another. As revealed by two experiments, people need to stop thinking about one task in order to fully transition their attention and perform well on another. Yet, results indicate it is difficult for people to transition their attention away from an unfinished task and their subsequent task performance suffers. Being able to finish one task before switching to another is, however, not enough to enable effective task transitions. Time pressure while finishing a prior task is needed to disengage from the first task and thus move to the next task and it contributes to higher performance on the next task.     

Deliberate Control of Continuous Motor Performance

The authors examined the means by which people vary movement parameters to satisfy more than 1 constraint at a time in a repetitive motor task. The authors expected that when participants (N = 12) were simultaneously confronted with spatial and temporal constraints in an ellipse-drawing task, they would either exploit the intrinsic amplitude-frequency relationships or activate less natural control regimes to prioritize their movement goals. By focusing on local amplitude and frequency errors and parameter changes from 1 movement to the next, the authors distinguished parameter changes that reflected exploitation of biomechanics from those that required deliberate control. The findings demonstrated that at low movement speeds, participants can pursue multiple movement goals simultaneously; at higher speeds, their capacity to satisfy multiple task goals is reduced. The authors used a new method of inferring deliberate control from movement kinematics in the present study.     

The Development of Attribute Dominance in the Knowledge Base

Two cuing, free-recall studies were conducted to test Bach and Underwood's (1970) hypothesis that acoustic encoding is dominant among second graders and semantic encoding is dominant among sixth graders. When retrieval cues were presented with to-be-remembered items at both input and output (Experiment 1), and when cues were presented only at output (Experiment 2), semantic cues were more efficient in elevating recall than were acoustic cues for both second and sixth graders. When these and other results generally found using recognition, sorting, incidental learning, and free-recall experimental designs are compared, it seems plausible that item presentation and memory-testing formats interact with age, and that these factors account for the different patterns of attribute dominance found in the literature. The knowledge base cannot be understood by focusing on either subject or task analyses, but only by focusing on interactions between subject and task variables as they change over time. The educational implications for young grade-school children are discussed.     

聚焦“缺失”对当下幸福体验的影响

人们的幸福体验与其关注的焦点密切相关。研究1采用图形聚焦范式,结果发现个体在情绪体验中出现聚焦缺失的聚焦错觉现象,聚焦缺失组个体的总体幸福体验低于非聚焦缺失组;研究2通过启动范式操纵被试的聚焦缺失程度,结果发现,高聚焦缺失个体的情绪幸福比低聚焦缺失的个体更低。2个研究结果发现:聚焦缺失是导致人们低幸福体验的根源,聚焦缺失使人们高估缺失所占整个生活比例,出现"缺失放大"现象。研究将聚焦错觉从"情感预测偏差"领域拓展至"当下幸福体验"领域,同时从聚焦"实物类匮乏"跨越到聚焦"抽象性缺失感",并初步揭示出"缺失放大"机制,未来或可进一步探讨聚焦缺失影响幸福体验的"缺失放大"机制。     

External focus of attention improves performance in a speeded aiming task

Athletic skills are often executed better when learners focus attention externally (e.g., on the trajectory of the ball after a tennis serve), rather than internally (e.g., on the position of their arm) (e.g., Wulf, 2007a). The current study explored the effects of attention focus on learning of speeded responses, and examined whether these benefits hold for retention and transfer. Participants performed a computerized speeded aiming task while focusing on the direction of the cursor (external focus) versus the direction in which their hand moved the mouse (internal focus). One week later, half of the participants performed the same task again (retention), and half performed the task under conditions in which the mouse movements were changed (transfer). Relative to internal focus, external focus led to faster acquisition and better maintenance of speeded responses over the retention interval.     

“Cold” Cognitive Control and Attentional Symptoms in Anxiety: Perceptions Versus Performance

Clinically significant anxiety is associated with an array of attentional symptoms (e.g., difficulty concentrating; unwanted thought) that are subjectively experienced as severe. However, neuropsychological findings are mixed with respect to the presence of cognitive deficits that can account for these symptoms. Contextualizing predictions from established clinical theories (e.g., Attentional Control Theory) within contemporary, neurobiologically derived models of cognitive control (Dual Mechanisms of Control Theory), the present study investigated the relationship between “cold” proactive and reactive cognitive control, task effort, and subjective attentional symptoms (difficulty concentrating; unwanted thought) in a mixed clinical sample of individuals with generalized anxiety disorder (GAD) and/or obsessive-compulsive disorder (OCD) and a comparison sample of healthy controls. Clinical status moderated the relationship between attentional symptoms (attentional focusing and trait worry) and proactive cognitive control response time. Clinical status also moderated the relationship between trait worry and task effort. Higher trait worry was associated with slower proactive control and lower effort in healthy participants, but faster proactive control in clinical participants. Self-reported attentional focusing showed differential validity vis-à-vis proactive control response time in clinical versus healthy participants. Post-hoc conditional effects analysis suggested more accurate self-appraisals in healthy controls, but was not significant after correction for multiple comparisons. Preliminary evidence suggested that differences in task effort in anxious versus healthy adults may relate to subjective attentional symptoms in GAD and OCD.     

Examining the relationships between self‐efficacy,task‐relevant attentional control,and task performance: Evidence from event‐related brain potentials

Self‐efficacy (SE) is a modifiable psychosocial factor related to individuals’ beliefs in their capabilities to successfully complete courses of action and has been shown to be positively associated with task performance. The authors hypothesized that one means through which SE is related with improved performance is through enhanced task‐relevant attentional control during task execution. To assess this hypothesis, we examined the relationships between SE and behavioural and neural indices of task performance and task‐relevant attentional control for 76 young adults during the completion of a flanker task. Results showed that greater SE was associated with greater response accuracy and P3b amplitude across task conditions, and faster RT under more difficult task conditions. Additionally, P3b amplitude was found to mediate the relationship between SE and task performance in the difficult condition. These findings suggest that greater attentional allocation to task‐relevant processes, including monitoring stimulus‐response relationships and focusing attention on working memory operations, may help explain the association between SE and improved task performance.     

How to switch on and switch off semantic priming effects for natural and artifactual categories: activation processes in category memory depend on focusing specific feature dimensions

"Semantic priming" refers to the phenomenon that people react faster to target words preceded by semantically related rather than semantically unrelated words. We wondered whether momentary mind sets modulate semantic priming for natural versus artifactual categories. We interspersed a category priming task with a second task that required participants to react to either the perceptual or action features of simple geometric shapes. Focusing on perceptual features enhanced semantic priming effects for natural categories, whereas focusing on action features enhanced semantic priming effects for artifactual categories. In fact, significant priming effects emerged only for those categories thought to rely on the features activated by the second task. This result suggests that (a) priming effects depend on momentary mind set and (b) features can be weighted flexibly in concept representations; it is also further evidence for sensory-functional accounts of concept and category representation.     

It’s in the means: Process focus helps against procrastination in the academic context

Two studies tested the hypotheses (1) that focusing on the process of goal pursuit is associated with lower levels of procrastination and (2) that this relationship is moderated by fear of failure and task aversiveness. Study 1 used a between-subjects design with hypothetical scenarios (N = 92). Study 2 used a 5-week longitudinal within-subject design in a real-life context (N = 50). Both studies found converging evidence for the main-effect hypothesis, that is, process focus is negatively associated with procrastination in the academic context (e.g., studying for an exam). Process focus was also negatively related to task aversiveness and fear of failure. However, findings regarding moderation effects of fear of failure and task aversiveness were mixed. Taken together, findings support the hypothesis that the cognitive representation of a goal primarily in terms of its means (i.e., process focus) versus its outcome is related to less procrastination: Focusing on the process of a task can help to reduce procrastination.