Selection history alters attentional filter settings persistently and beyond top-down control

2017 ◽  
Vol 54 (5) ◽  
pp. 736-754 ◽  
Author(s):  
Hanna Kadel ◽  
Tobias Feldmann-Wüstefeld ◽  
Anna Schubö
Keyword(s):  
Top Down ◽  
Selection History ◽  
Attentional Filter

scholarly journals Distracted by previous reward: integrating selection history, current task demands and saliency in a computational model

2021 ◽  
Author(s):  
Neda Meibodi ◽  
Hossein Abbasi ◽  
Anna Schubö ◽  
Dominik Endres
Keyword(s):  
Reaction Time ◽  
Task Demands ◽  
Top Down ◽  
Data Set ◽  
Learning History ◽  
History Effects ◽  
Selection History ◽  
Priority Map ◽  
Current Task ◽  
Level Model

Attention can be biased by previous learning and experience. We present analgorithmic-level model of this bias in visual attention that predicts quantitatively howbottom-up, top-down and selection history compete to control attention. In the model,the output of saliency maps as bottom-up guidance interacts with a history map thatencodes learning effects and a top-down task control to prioritize visual features. Wetest the model on a reaction-time (RT) data set from the experiment presented in [1].The model accurately predicts parameters of reaction time distributions from anintegrated priority map that is comprised of an optimal, weighted combination ofseparate maps. Analysis of the weights confirms learning history effects on attentionguidance. The model is able to capture individual differences between participants.Moreover, we demonstrate that a model with a reduced set of maps performs worse,indicating that integrating history, saliency and task information are required for aquantitative description of human attention.

Top-down imagery overrides the influence of selection history effects

2021 ◽  
Vol 93 ◽  
pp. 103153
Author(s):  
Brett A. Cochrane ◽  
Vanessa Ng ◽  
Bruce Milliken
Keyword(s):  
Top Down ◽  
History Effects ◽  
Selection History

Voluntary Control of Task Selection Does Not Eliminate the Impact of Selection History on Attention

2020 ◽  
Vol 32 (11) ◽  
pp. 2159-2177
Author(s):  
Dion T. Henare ◽  
Hanna Kadel ◽  
Anna Schubö
Keyword(s):  
Visual Search ◽  
Visual System ◽  
Target Selection ◽  
Control Mechanisms ◽  
Top Down ◽  
Task Selection ◽  
Color Selection ◽  
Selection History ◽  
History Of ◽  
The Impact

The human visual system can only process a fraction of the information present in a typical visual scene, and selection is historically framed as the outcome of bottom–up and top–down control processes. In this study, we evaluated how a third factor, an individual's selection history, interacts with top–down control mechanisms during visual search. Participants in our task were assigned to one of two groups in which they developed a history of either shape or color selection in one task, while searching for a shape singleton in a second task. A voluntary task selection procedure allowed participants to choose which task they would perform on each trial, thereby maximizing their top–down preparation. We recorded EEG throughout and extracted lateralized ERP components that index target selection (NT) and distractor suppression (PD). Our results showed that selection history continued to guide attention during visual search, even when top–down control mechanisms were maximized with voluntary task selection. For participants with a history of color selection, the NT component elicited by a shape target was attenuated when accompanied by a color distractor, and the distractor itself elicited a larger PD component. In addition, task-switching results revealed that participants in the color group had larger, asymmetric switch costs implying increased competition between task sets. Our results support the notion that selection history is a significant factor in attention guidance, orienting the visual system reflexively to objects that contradict an individual's current goals—even when these goals are intrinsically selected and prepared ahead of time.

scholarly journals A paradigm for investigating the effects of top-down processes on visual search

2019 ◽  
Author(s):  
Arnab Biswas ◽  
Devpriya Kumar
Keyword(s):  
Visual Search ◽  
Response Times ◽  
Pairwise Comparison ◽  
Search Performance ◽  
Top Down ◽  
Bottom Up ◽  
Search Tasks ◽  
Selection History ◽  
Significant Difference ◽  
The Difference

Searching for things is an essential part of our everyday life. The way we search gives us clues on how our cognitive processes function. Scientists have used the visual search task to study attention, perception, and memory. Visual search performance depends upon a combination of stimulus-driven, bottom-up information, goal-oriented, top-down information, and selection history bias. It is difficult to separate these factors due to their close interaction. Our current study presents a paradigm to isolate the effects of top-down factors in visual search. In our experiments, we asked subjects to perform two different search tasks. A part of the total trials in each of these tasks had the same bottom-up information. That is, they had the same target, distractor, and target-distractor arrangement. We controlled for selection history bias by having an equivalent proportion of target types for all tasks and randomized the trial-order for each subject. We compared the mean response times for the critical trials, which had identical bottom-up information shared across the two pairs of tasks. The results showed a significant difference in mean response times of critical trials for both our experiments. Thus, this paradigm allows us to compare the difference in top-down guidance when controlling for bottom-up factors. Pairwise comparison of top-down guidance for different features given the same bottom-up information allows us to ask interesting questions such as, “Visual search guidance for which features can or cannot be easily increased by top-down processes?” Answers to these questions can further shed light on the ecological and evolutionary importance of such features in perception.

Top-down attention and selection history in psychopathy: Evidence from a community sample.

2016 ◽  
Vol 125 (3) ◽  
pp. 435-441 ◽  
Author(s):  
Sylco S. Hoppenbrouwers ◽  
Stefan Van der Stigchel ◽  
Carmen S. Sergiou ◽  
Jan Theeuwes
Keyword(s):  
Community Sample ◽  
Top Down ◽  
Selection History

Top-down, bottom-up and selection-history-based control of attention: A failed trichotomy? The case of Priming of pop-out (PoP)

2020 ◽  
Author(s):  
Aniruddha Ramgir ◽  
Dominique Lamy
Keyword(s):  
Empirical Evidence ◽  
Statistical Learning ◽  
Past Experience ◽  
Present Review ◽  
Top Down ◽  
Bottom Up ◽  
Attentional Guidance ◽  
Selection History

When we search for an object, our performance is strongly influenced by our past experience. In the lab, this influence has been demonstrated by investigating a variety of phenomena, including inter-trial priming, statistical learning and reward history, and collectively referred to as selection history. The resulting findings have led researchers to claim that selection history guides attention, thereby challenging the prevailing dichotomy, according to which attentional priority is determined solely by top-down goals and bottom-up salience. The objective of the present review is to reexamine this claim by evaluating the evidence that specifically pertains to the role of selection history in attentional guidance, rather than in later processes occurring after the target is found. We focus on one selection history phenomenon, priming of pop-out (PoP). After demarcating the conditions under which PoP effects can be dissociated from top-down effects, we review the relevant findings, while distinguishing between the main experimental rationales adopted to address this question. We conclude that despite some inconsistencies that should be resolved by further research, most of the extant empirical evidence does not support the idea that PoP affects attentional priority. We call for similar reevaluations of other selection history phenomena and caution against burying the bottom-up vs. top-down dichotomy too hastily.

Top-Down Processing and Visual Reorientation Illusions in a Virtual Reality Environment

2004 ◽  
Vol 63 (3) ◽  
pp. 143-149 ◽  
Author(s):  
Fred W. Mast ◽  
Charles M. Oman
Keyword(s):  
Virtual Reality ◽  
Visual Processing ◽  
Line Length ◽  
Perceptual Cues ◽  
Virtual Reality Environment ◽  
Top Down ◽  
Test Conditions ◽  
The Subject ◽  
Processing Mechanisms

The role of top-down processing on the horizontal-vertical line length illusion was examined by means of an ambiguous room with dual visual verticals. In one of the test conditions, the subjects were cued to one of the two verticals and were instructed to cognitively reassign the apparent vertical to the cued orientation. When they have mentally adjusted their perception, two lines in a plus sign configuration appeared and the subjects had to evaluate which line was longer. The results showed that the line length appeared longer when it was aligned with the direction of the vertical currently perceived by the subject. This study provides a demonstration that top-down processing influences lower level visual processing mechanisms. In another test condition, the subjects had all perceptual cues available and the influence was even stronger.

Functional Anatomy of Intensity Aspects of Attention

2003 ◽  
Vol 14 (3) ◽  
pp. 181-190 ◽  
Author(s):  
Walter Sturm
Keyword(s):  
Right Hemisphere ◽  
Functional Anatomy ◽  
Fmri Data ◽  
Functional Networks ◽  
Top Down ◽  
Stimulus Modality ◽  
Spatial Orienting ◽  
Phasic Alertness ◽  
Co Activation ◽  
Attention System

Abstract: Behavioral and PET/fMRI-data are presented to delineate the functional networks subserving alertness, sustained attention, and vigilance as different aspects of attention intensity. The data suggest that a mostly right-hemisphere frontal, parietal, thalamic, and brainstem network plays an important role in the regulation of attention intensity, irrespective of stimulus modality. Under conditions of phasic alertness there is less right frontal activation reflecting a diminished need for top-down regulation with phasic extrinsic stimulation. Furthermore, a high overlap between the functional networks for alerting and spatial orienting of attention is demonstrated. These findings support the hypothesis of a co-activation of the posterior attention system involved in spatial orienting by the anterior alerting network. Possible implications of these findings for the therapy of neglect are proposed.

Auswirkungen eines Aufmerksamkeitstrainings auf die aphasische Symptomatik bei Schlaganfallpatienten

2011 ◽  
Vol 22 (1) ◽  
pp. 21-32 ◽  
Author(s):  
Julia Graf ◽  
Hartwig Kulke ◽  
Christa Sous-Kulke ◽  
Wilfried Schupp ◽  
Stefan Lautenbacher
Keyword(s):  
Top Down

Aufmerksamkeit kann als Kontrollsystem neuronaler Aktivität verstanden werden, welches Neuroplastizität top-down modulieren hilft. Bisher wurde selten versucht, durch deren gezielte Förderung Funktionswiederherstellungen nach Hirnschädigung zu begünstigen. In vorliegender Studie wurde dies am Beispiel der Aphasie erprobt. 15 Schlaganfallpatienten erhielten ein dreiwöchiges Training der selektiven Aufmerksamkeit mit den PC-Programmen CogniPlus und „Konzentration“ bei fünf Sitzungen pro Woche zusätzlich zur Standardtherapie, 13 weitere bildeten eine Kontrollgruppe ohne Aufmerksamkeitstraining. Zur Effektivitätskontrolle dienten zwei Versionen des Untertests Go/Nogo (Testbatterie zur Aufmerksamkeitsprüfung) und die Kurze Aphasieprüfung. Nach dem Training manifestierte sich zwischen den Untersuchungsgruppen kein Unterschied in Aufmerksamkeits- und Sprachfunktionen; das zusätzliche Aufmerksamkeitstraining war also wirkungslos. Allerdings zeigten Patienten mit deutlichen Aufmerksamkeitsverbesserungen tendenziell weniger Aphasie-Symptome, was die Hypothese aufmerksamkeitsvermittelter Plastizitätsmodulation nach Hirnschädigung partiell stützt.

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