scholarly journals The CircleSegmentView: a visualization for query preview and visual filtering

2005 ◽  
Author(s):  
Peter Klein ◽  
Harald Reiterer
Keyword(s):  
Visual Filtering

Configuration Saliency Revealed by Dichoptic Masking

Perception ◽  
1997 ◽  
Vol 26 (1_suppl) ◽  
pp. 95-95
Author(s):  
Y Bonneh ◽  
D Sagi
Keyword(s):  
Correct Response ◽  
Receptive Fields ◽  
Detection Performance ◽  
The Other ◽  
Spatial Integration ◽  
Probe Detection ◽  
Small Rectangle ◽  
Integration Mechanism ◽  
Spatial Configurations ◽  
Visual Filtering

We studied suprathreshold spatial integration by testing the saliency of multi Gabor element configurations in dichoptic masking conditions. Dichoptic presentations allows for a competition between spatially overlapping suprathreshold stimuli that involve nonoverlapping receptive fields in the first stage of visual filtering. Different spatial configurations of Gabor patches (sigma=lambda=0.12 deg) were presented to one eye (target) together with a bandpass noise presented to the other eye (mask). After a short rivalry period (128 ms) in which a dominance of one eye was established, a probe (a randomly positioned small rectangle of reduced contrast in the target) was presented for an additional detection period (80 ms). Probe detection performance was measured (2AFC) by finding the mask contrast leading to 75% correct response. We find that textures of randomly oriented patches are more dominant than uniform textures where the effect decreases and even reverses with decreasing of contrast. For suprathreshold (1-D) contours, however, we find that smooth collinear contours are more dominant than ‘jagged’ ones, regardless of contrast. These findings suggest principles underlying an early lateral integration mechanism based on contrast-dependent inhibitory and excitatory connections. This mechanism could be based on iso-orientation surround (2-D) inhibition and collinear (1-D) facilitation, with inhibition being more effective at high contrasts.

Visual Filtering Tools and Analysis of Case Groups for Process Discovery

2019 ◽  
pp. 303-323
Author(s):  
Sonia Fiol González ◽  
Luiz Schirmer ◽  
Leonardo Quatrin Campagnolo ◽  
Ariane M. B. Rodrigues ◽  
Guilherme G. Schardong ◽  
...  
Keyword(s):  
Process Discovery ◽  
Visual Filtering

scholarly journals Temporal visual filtering in diabetes mellitus

2003 ◽  
Vol 43 (22) ◽  
pp. 2377-2385 ◽  
Author(s):  
Nigel Davies ◽  
Antony Morland
Keyword(s):  
Diabetes Mellitus ◽  
Visual Filtering

The cost of visual filtering.

1983 ◽  
Vol 9 (4) ◽  
pp. 510-522 ◽  
Author(s):  
Daniel Kahneman ◽  
Anne Treisman ◽  
Jacquelyn Burkell
Keyword(s):  
The Cost ◽  
Visual Filtering

scholarly journals Visual filtering and covert orienting in persons with Down syndrome

2000 ◽  
Vol 24 (2) ◽  
pp. 167-172 ◽  
Author(s):  
Beth Randolph ◽  
Jacob A. Burack
Keyword(s):  
Down Syndrome ◽  
Relevant Information ◽  
Attentional Processes ◽  
Covert Orienting ◽  
Level Of Functioning ◽  
Mental Age ◽  
Average Intelligence ◽  
Efficient Performance ◽  
Extraneous Information ◽  
Visual Filtering

A forced-choice reaction time (RT) task was used to examine the efficiency of visual filtering (the inhibition of processing of irrelevant stimuli) and covert orienting (shifts of visual attention independent of eye movement) components of attention in persons with Down syndrome ( n = 20) and children of average intelligence ( n = 20) matched for mental age (MA) (average MA = approximately 5.4 years). Conditions varied with regard to presence or absence of distractors, and the validity (valid, invalid, or neutral) of location cues. Contrary to expectations, persons with Down syndrome and MA-matched children of average intelligence at approximately age 5 showed similar patterns of performance on a task that required filtering distracting stimuli and searching for relevant information in the visual field. Both groups responded more efficiently to a target preceded by a valid cue as compared to a target preceded by an invalid or neutral cue. In addition, performance was more efficient with a target that was presented without irrelevant information as compared to one that was flanked on either side by extraneous, nontarget information and therefore necessitated filtering for efficient performance. These two findings indicate that: (1) disengaging from the location of an incorrect cue, and then searching for, locating, and responding to a target requires more time and attention than simply locating and responding to a target that has been validly cued; and (2) processing and responding to a target flanked by extraneous information entails filtering, and therefore requires more time and resources than simply responding to a target without distractors. In general, the development of visual reflexive, covert orienting, and filtering are intact in persons with Down syndrome relative to their level of functioning at an MA level of approximately 5 years, a period that is critical in the development of attentional processes.

scholarly journals Spatial and temporal visual filtering in patients with glaucoma and ocular hypertension

Eye ◽  
1998 ◽  
Vol 12 (4) ◽  
pp. 691-696 ◽  
Author(s):  
U Vogt ◽  
A Morland ◽  
C Migdal ◽  
K Ruddock
Keyword(s):  
Ocular Hypertension ◽  
Visual Filtering

scholarly journals Cognitive processes contributing to visual working memory performance in individuals with Autism Spectrum Disorder

2016 ◽  
Author(s):  
◽  
Kimberly Bodner
Keyword(s):  
Autism Spectrum Disorder ◽  
Working Memory ◽  
Visual Working Memory ◽  
Real World ◽  
Memory Performance ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Autism Spectrum ◽  
Adolescents And Adults ◽  
Visual Filtering

Previous investigations of working memory performance in individuals with Autism Spectrum Disorder (ASD) have yielded mixed findings (e.g., Kenworthy, Yerys, Anthony, and Wallace, 2008; Geurts, de Vris, and van den Bergh, 2014). Research examining visual and spatial working memory abilities in older adolescents and adults with ASD specifically is limited. The current study assessed the contribution of working memory capacity, attention, and visual filtering abilities to visual working memory performance in adolescents and adults with and without ASD. Furthermore, the current study examined task performance related to real world report of working memory and attention abilities. Results revealed comparable estimates of visual working memory capacity overall between groups. However, visual working memory performance for individuals with ASD appeared to be more impacted by increases in attention and visual filtering demands. Individuals with ASD allocated their attention differently than non-ASD individuals, and spent less time looking at relevant information. The ASD group had more difficulty filtering distracting information in more challenging conditions. Difficulties on the task did not significantly relate to reported real world working memory or attention abilities. Findings suggest that visual working memory performance is similar between individuals with and without ASD when cognitive demands are low, but individuals with ASD are detrimentally effected when the cognitive load increases (increased attention and visual filtering demands), consistent with previous literature (Kenworthy et al., 2008). Given the complexity of our environments and need to filter visually distracting information, these findings may shed light on ASD-related difficulties in day-to-day functioning and provide a focus for intervention.

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