scholarly journals Ignorance is bliss: The role of observer expectation in dynamic spatial tuning of the attentional focus

2007 ◽  
Vol 69 (7) ◽  
pp. 1162-1174 ◽  
Author(s):  
Lisa N. Jefferies ◽  
Shahab Ghorashi ◽  
Jun-Ichiro Kawahara ◽  
Vincent tDi Lollo
Author(s):  
Floriana Costanzo ◽  
Elisa Fucà ◽  
Deny Menghini ◽  
Antonella Rita Circelli ◽  
Giovanni Augusto Carlesimo ◽  
...  

Event-based prospective memory (PM) was investigated in children with Attention deficit/hyperactivity disorder (ADHD), using a novel experimental procedure to evaluate the role of working memory (WM) load, attentional focus, and reward sensitivity. The study included 24 children with ADHD and 23 typically-developing controls. The experimental paradigm comprised one baseline condition (BC), only including an ongoing task, and four PM conditions, varying for targets: 1 Target (1T), 4 Targets (4T), Unfocal (UN), and Reward (RE). Children with ADHD were slower than controls on all PM tasks and less accurate on both ongoing and PM tasks on the 4T and UN conditions. Within the ADHD group, the accuracy in the RE condition did not differ from BC. A significant relationship between ADHD-related symptoms and reduced accuracy/higher speed in PM conditions (PM and ongoing trials), but not in BC, was detected. Our data provide insight on the adverse role of WM load and attentional focus and the positive influence of reward in the PM performance of children with ADHD. Moreover, the relation between PM and ADHD symptoms paves the road for PM as a promising neuropsychological marker for ADHD diagnosis and intervention.


Author(s):  
Michael A. Bruno

This chapter provides an overview of the prevalence and classification of error types in radiology, including the frequency and types of errors made by radiologists. We will review the relative contribution of perceptual error—in which findings are simply not seen—as compared to other common types of error. This error epidemiology will be considered in the light of the underlying variability and uncertainties present in the radiological process. The role of key cognitive biases will also be reviewed, including anchoring bias, confirmation bias, and availability bias. The role of attentional focus, working memory, and problems caused by fatigue and interruption will also be explored. Finally, the problem of radiologist error will be considered in the context of the overall problem of diagnostic error in medicine.


2021 ◽  
Vol 75 ◽  
pp. 102742
Author(s):  
Moslem Bahmani ◽  
Mehdi Babak ◽  
William M. Land ◽  
Jeffery T. Howard ◽  
Jed A. Diekfuss ◽  
...  

2001 ◽  
Vol 25 (2) ◽  
pp. 176-183 ◽  
Author(s):  
Jennifer L. de la Ossa ◽  
Mary Gauvain

This paper reports on the role of joint attentional processes in the development of children’s skill at using pictorial plans to construct objects. Efforts to establish joint attentional focus between mother and child were identified, and the nature and extent of maternal assistance and child involvement during planning were examined. Sixteen 4 to 5-year-old and sixteen 6 to 7-year-old children and their mothers participated in three problem-solving sessions (i.e., child-only pre-test and post-test, and mother-child interaction) that involved constructing a toy from multiple pieces using a pictorial, step-by-step plan. Older children were more planful than younger children during all the planning sessions. Mothers planning with younger children assumed greater responsibility for establishing joint attentional episodes than mothers planning with older children. Results indicate that mothers tailor their guidance on joint planning tasks in relation to developmental needs, and that an important aspect of these efforts is the establishment and maintenance of joint attention.


2002 ◽  
Vol 13 (4) ◽  
pp. 361-369 ◽  
Author(s):  
Uri Feintuch ◽  
Asher Cohen

The role of visual attention in task performance has been extensively debated. On the basis of the dimensional-action model, we hypothesized that a major role of attention is to transfer response decisions from targets on which it is focused to high-level centers dealing with response execution. This hypothesis predicts that response decisions for two targets will interact only when attention is focused on both targets, and only when the response to the targets is defined by different dimensions. Three experiments, using the redundancy-gain paradigm, tested and confirmed this prediction. Experiment 1 showed that coactivation of two cross-dimensional targets occurred only when the targets were positioned in the same location, not when they were in separate locations. Experiment 2 manipulated the focus of attention and showed that coactivation can occur even for targets positioned in different locations if they are both within the attentional focus. Experiment 3 showed that this attention-induced coactivation does not occur for targets from the same dimensional module. These results suggest that a major role of attention is postperceptual and involves gating of selected responses to executive functions.


2010 ◽  
Vol 90 (1) ◽  
pp. 46-51 ◽  
Author(s):  
AIM van Laarhoven ◽  
FW Kraaimaat ◽  
OH Wilder-Smith ◽  
AWM Evers

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Giacomo Rossettini ◽  
Marco Testa ◽  
Marco Vicentini ◽  
Paolo Manganotti

External focus of attention (EFA) and internal focus of attention (IFA) represent commonly used strategies to instruct subjects during exercise. Several studies showed EFA to be more effective than IFA to improve motor performance and learning. To date the role of these strategies on motor performance during finger movement was less studied. The objective of the study was to investigate motor performance, patient’s preference induced by IFA and EFA, and the focus during control condition. Ten healthy right-handed participants performed a finger movement task in control, EFA, and IFA conditions (counterbalanced). Errors, patient’s preference, and type of attentional focus spontaneously adopted during the control condition were recorded. EFA determined less error (p<0.01) compared to control and IFA. Participants preferred EFA against IFA and control condition. In the control group 10% of subjects adopted a purely EFA, 70% of subjects adopted a purely IFA, and 20% of subjects adopted a mixture of the two foci. Our results confirm that EFA is more effective than IFA and control in finger movement task. Due its clinical relevance, the interaction between attention and finger movement should be further investigated.


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