Concurrent deployment of visual attention and response selection bottleneck in a dual-task: Electrophysiological and behavioural evidence

2017 ◽  
Vol 70 (12) ◽  
pp. 2460-2477 ◽  
Author(s):  
Christina B. Reimer ◽  
Tilo Strobach ◽  
Torsten Schubert
Keyword(s):  
Visual Attention ◽  
Dual Task ◽  
Response Selection ◽  
Behavioural Evidence ◽  
Response Selection Bottleneck

Locus of Backward Crosstalk Effects on Task 1 in a Psychological Refractory Period Task

2014 ◽  
Vol 61 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Yao-Ting Ko ◽  
Jeff Miller
Keyword(s):  
Dual Task ◽  
Refractory Period ◽  
Psychological Refractory Period ◽  
Response Selection ◽  
Stimulus Onset ◽  
Standard Response ◽  
Backward Crosstalk ◽  
Selection Stage ◽  
Prp Paradigm ◽  
Response Selection Bottleneck

Our performance on a task decreases when the task is in a dual-task situation than when it is in isolation. An important experimental setting for dual-task situation is the psychological refractory period (PRP) paradigm, and the dual-task performance decrements in the PRP paradigm are referred to as PRP interference. The standard response-selection bottleneck (RSB) models state that the response-selection stage of the second task (T2) cannot start until the response-selection stage of the first task (T1) finishes, resulting in the PRP interference. Contrary to the prediction of RSB models, several researchers have found T2’s modulations on T1’s performance, and have suggested that T1’s selection-related processes are affected by T2’s selection-related processes, referred to as backward crosstalk effects. The locus of backward crosstalk effects is not clear, however, because RTs were measured in most previous studies. By using semantically unrelated stimuli and responses and by measuring T1’s lateralized readiness potential, we examined the locus of backward crosstalk effects. We found that the interval between T1’s stimulus onset and the stimulus-locked LRP onset was affected, suggesting T2’s response selection starts before T1’s selection is complete. The present result provided electrophysiological evidence focusing on T1’s changes in favor of the hypothesis of parallel response selection in the PRP paradigm.

Overlapping Mental Operations in Serial Performance with Preview

1994 ◽  
Vol 47 (1) ◽  
pp. 161-191 ◽  
Author(s):  
Harold Pashler
Keyword(s):  
Dual Task ◽  
Response Selection ◽  
Response Duration ◽  
Task Set ◽  
Response Mapping ◽  
Stimulus Response ◽  
Manual Responses ◽  
First Response ◽  
Concurrent Performance ◽  
Response Selection Bottleneck

Dual-task research has revealed a response-selection bottleneck: response selection cannot occur simultaneously in two different tasks, though perceptual processing may overlap response selection (Welford, 1952; Pashler & Johnston, 1989). In serial performance with preview, the same task is performed repeatedly, but stimuli are available well before response. Does the dual-task bottleneck limit the rate of responding in this situation, despite the fact that task set need not change? Four experiments examined manual responses to letters, varying stimulus preview. Preview increased RTs for the first response and reduced the subsequent inter-response intervals (IRIs). Preview also reduced the effect of visual intensity and response duration on IRIs, whereas effects of stimulus-response mapping variables were unchanged. These results indicate that the response-selection bottleneck limits serial performance, just as it limits concurrent performance of two unrelated tasks. This implies that the response-selection bottleneck is not caused by the need to switch task set.

Valence Processing Bypassing the Response Selection Bottleneck?

2008 ◽  
Vol 55 (3) ◽  
pp. 203-211 ◽  
Author(s):  
Rico Fischer ◽  
Torsten Schubert
Keyword(s):  
Dual Task ◽  
Refractory Period ◽  
Psychological Refractory Period ◽  
Response Selection ◽  
Flanker Task ◽  
Capacity Limitations ◽  
Semantic Categories ◽  
Response Selection Bottleneck ◽  
Response Activation ◽  
Temporal Overlap

Abstract. The activation of semantic categories has often been claimed to occur in an attention-free, unconditionally automatic fashion (e.g., Bargh & Chartrand, 1999 ; Ferguson & Bargh, 2004 ). Using a dual-task procedure we tested whether the activation of valence categories is restricted by dual-task specific attentional limitations. For this reason we implemented a modified Eriksen-flanker task as Task 2 in a psychological refractory period paradigm. Participants were to judge the frequency of a tone in Task 1 and the valence of a target word in the presence of irrelevant flanker words in Task 2. Two different flanker categories ensured the activation of semantic categories instead of S-R based response activation. The most important result was an underadditive interaction between flanker congruency and the amount of temporal overlap between tasks that was independent of flanker type. Following the locus-of-slack logic, we interpret these findings as evidence for Task 2 processing parallel to bottleneck-stage processing in Task 1. This extends previous findings by showing that not only number categories ( Fischer, Schubert, & Miller, 2007 ; Oriet, Tombu, & Jolicouer, 2005 ), but also semantic valence categories can be activated despite dual-task capacity limitations.

Electrophysiological correlates of parallel response selection in dual-task performance

2010 ◽  
Author(s):  
Sandra J. Thomson ◽  
Matthew T. Mazurek ◽  
Judith M. Shedden ◽  
Scott Watter
Keyword(s):  
Task Performance ◽  
Dual Task ◽  
Response Selection ◽  
Dual Task Performance

Telephone Conversations Affect the Executive but not the Alerting or Orienting Network

2021 ◽  
Author(s):  
Melina Kunar ◽  
Derrick Watson ◽  
Rhiannon Richards ◽  
Daniel Gunnell
Keyword(s):  
Visual Attention ◽  
Selective Attention ◽  
Mobile Phone ◽  
Dual Task ◽  
Response Times ◽  
Amount Of Information ◽  
Attentional Networks ◽  
Attention Tasks ◽  
Conflict Effect ◽  
The Individual

Previous work has shown that talking on a mobile phone leads to an impairment of visual attention. Gunnell et al. (2020) investigated the locus of these dual-task impairments and found that although phone conversations led to cognitive delays in response times, other mechanisms underlying particular selective attention tasks were unaffected. Here we investigated which attentional networks, if any, were impaired by having a phone conversation. We used the Attentional Network Task (ANT) to evaluate performance of the alerting, orienting and executive attentional networks, both in conditions where people were engaged in a conversation and where they were silent. Two experiments showed that there was a robust delay in response across all three networks. However, at the individual network level, holding a conversation did not influence the size of the alerting or orienting effects but it did reduce the size of the conflict effect within the executive network. The findings suggest that holding a conversation can reduce the overall speed of responding and, via its influence on the executive network, can reduce the amount of information that can be processed from the environment.

Evaluation of the effects of adding vibrotactile feedback to myoelectric prosthesis users on performance and visual attention in a dual-task paradigm

2018 ◽  
Vol 32 (10) ◽  
pp. 1308-1316 ◽  
Author(s):  
Eitan Raveh ◽  
Jason Friedman ◽  
Sigal Portnoy
Keyword(s):  
Visual Attention ◽  
Dual Task ◽  
Repeated Measures ◽  
Gaze Behavior ◽  
Vibrotactile Feedback ◽  
Myoelectric Prosthesis ◽  
Repeated Measures Design ◽  
Performance Time ◽  
Dual Task Paradigm ◽  
Improved Performance

Objective: To evaluate the effects of adding vibrotactile feedback to myoelectric prosthesis users on the performance time and visual attention in a dual-task paradigm. Design: A repeated-measures design with a counterbalanced order of two conditions. Setting: Laboratory setting. Subjects: Transradial amputees using a myoelectric prosthesis with normal or corrected eyesight ( N = 12, median age = 65 ± 13 years). Exclusion criteria were orthopedic or neurologic problems. Interventions: Subjects performed grasping tasks with their prosthesis, while controlling a virtual car on a road with their intact hand. The dual task was performed twice: with and without vibrotactile feedback. Main measures: Performance time of each of the grasping tasks and gaze behavior, measured by the number of times the subjects shifted their gaze toward their hand, the relative time they applied their attention to the screen, and percentage of error in the secondary task. Results: The mean performance time was significantly shorter ( P = 0.024) when using vibrotactile feedback (93.2 ± 9.6 seconds) compared with the performance time measured when vibrotactile feedback was not available (107.8 ± 20.3 seconds). No significant differences were found between the two conditions in the number of times the gaze shifted from the screen to the hand, in the time the subjects applied their attention to the screen, and in the time the virtual car was off-road, as a percentage of the total game time (51.4 ± 15.7 and 50.2 ± 19.5, respectively). Conclusion: Adding vibrotactile feedback improved performance time during grasping in a dual-task paradigm. Prosthesis users may use vibrotactile feedback to perform better during daily tasks, when multiple cognitive demands are present.

Evaluating the Spectrum of Cognitive-Motor Relationships During Dual-Task Jump Landing

2021 ◽  
pp. 1-8
Author(s):  
Patrick D. Fischer ◽  
Keith A. Hutchison ◽  
James N. Becker ◽  
Scott M. Monfort
Keyword(s):  
Working Memory ◽  
Cognitive Function ◽  
Visual Attention ◽  
Dual Task ◽  
Cruciate Ligament ◽  
Reaction Force ◽  
Neuromuscular Control ◽  
Task Demands ◽  
Jump Landing ◽  
Peak Knee

Cognitive function plays a role in understanding noncontact anterior cruciate ligament injuries, but the research into how cognitive function influences sport-specific movements is underdeveloped. The purpose of this study was to determine how various cognitive tasks influenced dual-task jump-landing performance along with how individuals’ baseline cognitive ability mediated these relationships. Forty female recreational soccer and basketball players completed baseline cognitive function assessments and dual-task jump landings. The baseline cognitive assessments quantified individual processing speed, multitasking, attentional control, and primary memory ability. Dual-task conditions for the jump landing included unanticipated and anticipated jump performance, with and without concurrent working memory and captured visual attention tasks. Knee kinematics and kinetics were acquired through motion capture and ground reaction force data. Jumping conditions that directed visual attention away from the landing, whether anticipated or unanticipated, were associated with decreased peak knee flexion angle (P < .001). No interactions between cognitive function measures and jump-landing conditions were observed for any of the biomechanical variables, suggesting that injury-relevant cognitive-motor relationships may be specific to secondary task demands and movement requirements. This work provides insight into group- and subject-specific effects of established anticipatory and novel working memory dual-task paradigms on the neuromuscular control of a sport-specific movement.

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