scholarly journals Context Affects Quiet Eye Duration and Motor Performance Independent of Cognitive Effort

2020 ◽  
pp. 1-7
Author(s):  
Oliver R. Runswick ◽  
Matthew Jewiss ◽  
Ben T. Sharpe ◽  
Jamie S. North
Keyword(s):  
Motor Performance ◽  
Cognitive Effort ◽  
Pupil Dilation ◽  
Cognitive Resources ◽  
Extensive Literature ◽  
Context Condition ◽  
Additional Load ◽  
Quiet Eye ◽  
And Performance

Extensive literature has shown the effect of “quiet eye” (QE) on motor performance. However, little attention has been paid to the context in which tasks are executed (independent of anxiety) and the mechanisms that underpin the phenomenon. Here, the authors aimed to investigate the effects of context (independent of anxiety) on QE and performance while examining if the mechanisms underpinning QE are rooted in cognitive effort. In this study, 21 novice participants completed golf putts while pupil dilation, QE duration, and putting accuracy were measured. Results showed that putting to win was more accurate compared with the control (no context) condition, and QE duration was longer when putting to win or tie a hole compared with control. There was no effect of context on pupil dilation. Results suggest that, while the task was challenging, performance scenarios can enhance representativeness of practice without adding additional load to cognitive resources, even for novice performers.

Does the Simon Effect Interfere with the Synergy Between Perception and Action?

2021 ◽  
pp. 003151252110229
Author(s):  
André Klostermann
Keyword(s):  
Simon Effect ◽  
Attentional Control ◽  
Motor Performance ◽  
Perception And Action ◽  
Response Selection ◽  
Cognitive Resources ◽  
Alternative Response ◽  
Efficient Management ◽  
Quiet Eye ◽  
Stimulus Effect

Research suggests that – particularly – the execution of precision-demanding far-aiming tasks necessitates an optimal coupling between perception and action. In this regard, the duration of the last fixation before initiating movement – i.e., the Quiet Eye (QE) – has been functionally related to subsequent motor performance. In the current study, we investigated potential mechanisms of QE by applying the Simon paradigm – i.e., cognitive interferences evoked by stimulus-effect incompatibilities over response selection. To this end, we had participants throw balls as precisely as possible, either with their left or right hand (hands condition, HC) or at left or right targets (targets condition, TC), respectively. Via monaural auditory stimuli, participants received information about the hand side and the target side, respectively, either with compatible (i.e., congruent stimulus-effect side) or incompatible (i.e., incongruent stimulus-effect side) stimulus-effect mappings. Results showed that participants reacted slower and showed later first fixation onsets at the target in incompatible vs. compatible trials, thus, replicating and extending the classical Simon effect. Crucially, in the HC, there were earlier QE onsets and longer QE durations in incompatible (vs. compatible) trials, suggesting an inhibition of cognitive interferences over response selection to preserve motor performance. These findings are in line with attentional explanations of QE, suggesting optimized attentional control with efficient management of limited cognitive resources (optimal-attentional-control explanation) or with the inhibition of alternative response parametrization (inhibition explanation).

scholarly journals Listener’s personality traits predict changes in pupil size during auditory language comprehension

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Isabell Hubert Lyall ◽  
Juhani Järvikivi
Keyword(s):  
Personality Traits ◽  
Language Processing ◽  
Language Comprehension ◽  
Pupil Size ◽  
Pupil Dilation ◽  
Systematic Research ◽  
Cognitive Resources ◽  
Personality Profiles ◽  
Pupillary Responses ◽  
Grammatical Errors

AbstractResearch suggests that listeners’ comprehension of spoken language is concurrently affected by linguistic and non-linguistic factors, including individual difference factors. However, there is no systematic research on whether general personality traits affect language processing. We correlated 88 native English-speaking participants’ Big-5 traits with their pupillary responses to spoken sentences that included grammatical errors, "He frequently have burgers for dinner"; semantic anomalies, "Dogs sometimes chase teas"; and statements incongruent with gender stereotyped expectations, such as "I sometimes buy my bras at Hudson's Bay", spoken by a male speaker. Generalized additive mixed models showed that the listener's Openness, Extraversion, Agreeableness, and Neuroticism traits modulated resource allocation to the three different types of unexpected stimuli. No personality trait affected changes in pupil size across the board: less open participants showed greater pupil dilation when processing sentences with grammatical errors; and more introverted listeners showed greater pupil dilation in response to both semantic anomalies and socio-cultural clashes. Our study is the first one demonstrating that personality traits systematically modulate listeners’ online language processing. Our results suggest that individuals with different personality profiles exhibit different patterns of the allocation of cognitive resources during real-time language comprehension.

scholarly journals Notetaking and Writing from Hypertexts in L1 and L2

2008 ◽  
Vol 156 ◽  
pp. 31-50
Author(s):  
Marie-Laure Barbier ◽  
Annie Piolat ◽  
Jean-Yves Roussey ◽  
Françoise Raby
Keyword(s):  
Cognitive Load ◽  
Word Processor ◽  
Cognitive Effort ◽  
Cognitive Resources ◽  
Main Task ◽  
Writing Processes ◽  
Random Intervals ◽  
Paper Condition ◽  
Copy And Paste ◽  
L1 And L2

This study analyzes the cognitive effort and linguistic procedures of sixty students using information taken from an experimental website in L1 (French) and in L2 (English). The students navigated on the website and took notes on paper or with a word processor. A triple-task paradigm was used to estimate the cognitive load of reading, notetaking, and writing processes in L2. The students had to perform two additional tasks while a main task (notetaking, for example) was being carried out. They had to react as fast as possible to sound signals sent out at random intervals. They also had to identify what they were doing at the time the sound signal was heard (reading, notetaking, or writing). The study focuses on the way the students managed their cognitive resources while exploring the website, selecting and writing down the ideas they considered useful, and reconstructing them later when producing their own text. Surprisingly, no difference in cognitive load was observed between L1 and L2. By relying almost exclusively on the copy and paste functions to retrieve information from the website, the participants using a word processor in L2 succeeded in making reading a less costly activity, and they performed similarly to the notetakers in L1. The students’ difficulties in L2 became apparent only in the paper condition. The strategies and linguistic procedures of the students are described and related to the ways teachers can approach the new dimensions of notetaking and writing with a computer.

scholarly journals Priming Younger and Older Adults’ Sentence Comprehension: Insights from Dynamic Emotional Facial Expressions and Pupil Size Measures

2016 ◽  
Vol 9 (1) ◽  
pp. 129-148 ◽  
Author(s):  
Maria Nella Carminati ◽  
Pia Knoeferle
Keyword(s):  
Older Adults ◽  
Sentence Processing ◽  
Pupil Size ◽  
Sentence Comprehension ◽  
Cognitive Effort ◽  
Pupil Dilation ◽  
Emotional Facial Expressions ◽  
Visual World ◽  
Positivity Effect ◽  
Positive Valence

Background: Prior visual-world research has demonstrated that emotional priming of spoken sentence processing is rapidly modulated by age. Older and younger participants saw two photographs of a positive and of a negative event side-by-side and listened to a spoken sentence about one of these events. Older adults’ fixations to the mentioned (positive) event were enhanced when the still photograph of a previously-inspected positive-valence speaker face was (vs. wasn’t) emotionally congruent with the event/sentence. By contrast, the younger adults exhibited such an enhancement with negative stimuli only. Objective: The first aim of the current study was to assess the replicability of these findings with dynamic face stimuli (unfolding from neutral to happy or sad). A second goal was to assess a key prediction made by socio-emotional selectivity theory, viz. that the positivity effect (a preference for positive information) displayed by older adults involves cognitive effort. Method: We conducted an eye-tracking visual-world experiment. Results: Most priming and age effects, including the positivity effects, replicated. However, against our expectations, the positive gaze preference in older adults did not co-vary with a standard measure of cognitive effort - increased pupil dilation. Instead, pupil size was significantly bigger when (both younger and older) adults processed negative than positive stimuli. Conclusion: These findings are in line with previous research on the relationship between positive gaze preferences and pupil dilation. We discuss both theoretical and methodological implications of these results.

The Role of Quiet Eye Duration and Its Components in a Complex Far-Aiming Task

2020 ◽  
Vol 8 (3) ◽  
pp. 516-527
Author(s):  
Samira Moeinirad ◽  
Behrouz Abdoli ◽  
Alireza Farsi ◽  
Nasour Ahmadi
Keyword(s):  
Visual Information ◽  
Gaze Behavior ◽  
Movement Initiation ◽  
Basketball Players ◽  
Relative Contribution ◽  
Quiet Eye ◽  
Performance Accuracy ◽  
Infrared Cameras ◽  
And Performance

The quiet eye is a characteristic of highly skilled perceptual and motor performance that is considered as the final fixation toward a target before movement initiation. The aim of this study was to extend quiet eye–related knowledge by investigating expertise effects on overall quiet eye duration among expert and near-expert basketball players, as well as to determine the relative contribution of early and late visual information in a basketball jump shot by comparing the timing components of quiet eye duration (early and late quite eye). Twenty-seven expert and near-expert male basketball players performed the jump shots. Gaze was recorded with the SensoMotoric Instruments eye tracking glasses and shooting performance accuracy was evaluated by scoring each shot on a scale of 1–8. Six infrared cameras circularly arranged around the participants were used to collect the kinematic information of the players. The performance accuracy, gaze behavior, and kinematic characteristics of the participants during the test were calculated. The experts with longer quiet eye duration had better performance in a basketball jump shot compared to the near-experts. Also the experts had longer early and late quiet eye duration than the near-experts. The results revealed a relationship between quiet eye duration and performance. The combined visual strategy is a more efficient strategy in complex far-aiming tasks such as a basketball jump shot.

scholarly journals Observations on the Computation of Eigenvalue and Eigenvector Jacobians

Algorithms ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 245 ◽  
Author(s):  
Andrew J. Liounis ◽  
John A. Christian ◽  
Shane B. Robinson
Keyword(s):  
Complex Case ◽  
Extensive Literature ◽  
Jacobian Matrices ◽  
Special Cases ◽  
The Matrix ◽  
General Complex ◽  
Analytic Expressions ◽  
And Performance ◽  
Eigenvector Derivatives ◽  
Eigenvalue And Eigenvector

Many scientific and engineering problems benefit from analytic expressions for eigenvalue and eigenvector derivatives with respect to the elements of the parent matrix. While there exists extensive literature on the calculation of these derivatives, which take the form of Jacobian matrices, there are a variety of deficiencies that have yet to be addressed—including the need for both left and right eigenvectors, limitations on the matrix structure, and issues with complex eigenvalues and eigenvectors. This work addresses these deficiencies by proposing a new analytic solution for the eigenvalue and eigenvector derivatives. The resulting analytic Jacobian matrices are numerically efficient to compute and are valid for the general complex case. It is further shown that this new general result collapses to previously known relations for the special cases of real symmetric matrices and real diagonal matrices. Finally, the new Jacobian expressions are validated using forward finite differencing and performance is compared with another technique.

Empirical analysis of enablers and performance outcome of manufacturing flexibility in an emerging economy

2020 ◽  
Vol 31 (6) ◽  
pp. 1301-1322 ◽  
Author(s):  
Ruchi Mishra
Keyword(s):  
Structural Equation ◽  
Positive Influence ◽  
Operational Performance ◽  
Equation Modeling ◽  
Extensive Literature ◽  
Product Mix ◽  
Content Type ◽  
Volume Flexibility ◽  
And Performance ◽  
Internal Integration

PurposeThe objective of this paper is to empirically test and verify the enablers of volume flexibility and product-mix flexibility and to assess the influence of these flexibilities on operational performance.Design/methodology/approachA research framework consisting of nine pairs of hypotheses was developed using an extensive literature review. Using a self-administered questionnaire, 391 responses were collected, and these responses were analyzed using descriptive statistics, factor analysis, and structural equation modeling techniques.FindingsThe findings empirically confirm the enablers of volume flexibility and product-mix flexibility. The proposed model explained 59 percent variance in volume flexibility and 63 percent variance in product-mix flexibility. Volume flexibility and product-mix flexibility together explained 38 percent variance in operational performance.Research limitations/implicationsTheoretically, this study advances flexibility literature in two significant ways. First, the study conducts first of its kind quantitative empirical investigation considering upstream, downstream, and internal integration practices as enablers of volume flexibility and product-mix flexibility. Second, this study adds to the flexibility literature by suggesting the positive influence of volume and product-mix flexibility on the operational performance of firms.Originality/valueThe study reinforces the role of enablers in the development of volume and product-mix flexibilities. Thus, the study provides a comprehensive view of flexibility enablers that can be used as a diagnostic tool, which practitioners can use to assess and deploy flexibility.

scholarly journals Sensorimotor cortex beta oscillations reflect motor skill learning ability after stroke

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Svenja Espenhahn ◽  
Holly E Rossiter ◽  
Bernadette C M van Wijk ◽  
Nell Redman ◽  
Jane M Rondina ◽  
...  
Keyword(s):  
Motor Learning ◽  
Sensorimotor Cortex ◽  
Motor Skill ◽  
Motor Performance ◽  
Skill Learning ◽  
Motor Skill Learning ◽  
Healthy Controls ◽  
Stroke Patients ◽  
Beta Oscillations ◽  
And Performance

Abstract Recovery of skilled movement after stroke is assumed to depend on motor learning. However, the capacity for motor learning and factors that influence motor learning after stroke have received little attention. In this study, we first compared motor skill acquisition and retention between well-recovered stroke patients and age- and performance-matched healthy controls. We then tested whether beta oscillations (15–30 Hz) from sensorimotor cortices contribute to predicting training-related motor performance. Eighteen well-recovered chronic stroke survivors (mean age 64 ± 8 years, range: 50–74 years) and 20 age- and sex-matched healthy controls were trained on a continuous tracking task and subsequently retested after initial training (45–60 min and 24 h later). Scalp electroencephalography was recorded during the performance of a simple motor task before each training and retest session. Stroke patients demonstrated capacity for motor skill learning, but it was diminished compared to age- and performance-matched healthy controls. Furthermore, although the properties of beta oscillations prior to training were comparable between stroke patients and healthy controls, stroke patients did show less change in beta measures with motor learning. Lastly, although beta oscillations did not help to predict motor performance immediately after training, contralateral (ipsilesional) sensorimotor cortex post-movement beta rebound measured after training helped predict future motor performance, 24 h after training. This finding suggests that neurophysiological measures such as beta oscillations can help predict response to motor training in chronic stroke patients and may offer novel targets for therapeutic interventions.

Employee Share Ownership

2010 ◽  
Author(s):  
Eric Kaarsemaker ◽  
Andrew Pendleton ◽  
Erik Poutsma
Keyword(s):  
Profit Sharing ◽  
Extensive Literature ◽  
Share Ownership ◽  
Factors Associated ◽  
Participation Rights ◽  
And Performance ◽  
Variety Means

Employee share ownership involves employees acquiring shares in their employer so that they become shareholders. It takes a variety of forms, some of which may have greater significance and effects than others. The extent to which employees possess profit sharing, information, and participation rights varies considerably. This variety means that generalizations about employee share ownership have to be made with caution, as becomes evident in this article. The article provides more details of the various types of employee share ownership plans, before providing information on the incidence of employee share ownership. It examines the factors associated with the use of employee share ownership plans by companies (‘determinants’). The article also reviews the extensive literature on the effects of employee share ownership on attitudes, behaviour, and performance.

Quiet Eye and Performance in Sport: A Meta-Analysis

2016 ◽  
Vol 38 (5) ◽  
pp. 441-457 ◽  
Author(s):  
Jean-Charles Lebeau ◽  
Sicong Liu ◽  
Camilo Sáenz-Moncaleano ◽  
Susana Sanduvete-Chaves ◽  
Salvador Chacón-Moscoso ◽  
...  
Keyword(s):  
Effect Size ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Subsequent Performance ◽  
Quiet Eye ◽  
Performance Effects ◽  
Moderate Effect Size ◽  
Moderate Effect ◽  
And Performance ◽  
Absolute Duration

Research linking the “quiet eye” (QE) period to subsequent performance has not been systematically synthesized. In this paper we review the literature on the link between the two through nonintervention (Synthesis 1) and intervention (Synthesis 2) studies. In the first synthesis, 27 studies with 38 effect sizes resulted in a large mean effect (d = 1.04) reflecting differences between experts’ and novices’ QE periods, and a moderate effect size (d = 0.58) comparing QE periods for successful and unsuccessful performances within individuals. Studies reporting QE duration as a percentage of the total time revealed a larger mean effect size than studies reporting an absolute duration (in milliseconds). The second synthesis of 9 articles revealed very large effect sizes for both the quiet-eye period (d = 1.53) and performance (d = 0.84). QE also showed some ability to predict performance effects across studies.

Sign in / Sign up

Export Citation Format

Share Document