Visual processing speed: effects of auditory input on visual processing

2007 ◽  
Vol 10 (6) ◽  
pp. 734-740 ◽  
Author(s):  
Christopher W. Robinson ◽  
Vladimir M. Sloutsky
Keyword(s):  
Processing Speed ◽  
Visual Processing ◽  
Auditory Input ◽  
Visual Processing Speed

Visual attention in adults with attention-deficit/hyperactivity disorder before and after stimulant treatment

2018 ◽  
Vol 49 (15) ◽  
pp. 2617-2625 ◽  
Author(s):  
Ann-Marie Low ◽  
Signe Vangkilde ◽  
Julijana le Sommer ◽  
Birgitte Fagerlund ◽  
Birte Glenthøj ◽  
...  
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Visual Attention ◽  
Attention Deficit ◽  
Processing Speed ◽  
Visual Processing ◽  
Stimulant Medication ◽  
Hyperactivity Disorder ◽  
Visual Processing Speed ◽  
Adhd Symptomatology

AbstractBackgroundAttention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder which frequently persists into adulthood. The primary goal of the current study was to (a) investigate attentional functions of stimulant medication-naïve adults with ADHD, and (b) investigate the effects of 6 weeks of methylphenidate treatment on these functions.MethodsThe study was a prospective, non-randomized, non-blinded, 6-week follow-up design with 42 stimulant medication-naïve adult patients with ADHD, and 42 age and parental education-matched healthy controls. Assessments included measures of visual attention, based on Bundesen's Theory of Visual Attention (TVA), which yields five precise measures of aspects of visual attention; general psychopathology; ADHD symptoms; dyslexia screening; and estimates of IQ.ResultsAt baseline, significant differences were found between patients and controls on three attentional parameters: visual short-term memory capacity, threshold of conscious perception, and to a lesser extent visual processing speed. Secondary analyses revealed no significant correlations between TVA parameter estimates and severity of ADHD symptomatology. At follow-up, significant improvements were found specifically for visual processing speed; this improvement had a large effect size, and remained when controlling for re-test effects, IQ, and dyslexia screen performance. There were no significant correlations between changes in visual processing speed and changes in ADHD symptomatology.ConclusionsADHD in adults may be associated with deficits in three distinct aspects of visual attention. Improvements after 6 weeks of medication are seen specifically in visual processing speed, which could represent an improvement in alertness. Clinical symptoms and visual attentional deficits may represent separate aspects of ADHD in adults.

Phasic alertness cues modulate visual processing speed in healthy aging

2018 ◽  
Vol 70 ◽  
pp. 30-39 ◽  
Author(s):  
Marleen Haupt ◽  
Christian Sorg ◽  
Natan Napiórkowski ◽  
Kathrin Finke
Keyword(s):  
Processing Speed ◽  
Visual Processing ◽  
Healthy Aging ◽  
Phasic Alertness ◽  
Visual Processing Speed

scholarly journals Cognitive Function in Multiple Sclerosis Patients Based on Age, Gender, and Education Level

2020 ◽  
Author(s):  
Elham Hassanshahi ◽  
Zahra Asadollahi ◽  
Hossein Azin ◽  
Jalal Hassanshahi ◽  
Amin Hassanshahi ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Processing Speed ◽  
Visual Processing ◽  
Spatial Perception ◽  
Visual Learning ◽  
Education Level ◽  
Level Of Education ◽  
Gender And Education ◽  
Visual Processing Speed ◽  
Multiple Sclerosis Patients

Multiple sclerosis (MS) is defined as an inflammatory, progressive, and autoimmune disease in the central nervous system, recognized by its subsequent demyelination and neurodegeneration. Cognitive disorders are among the most severe problems in patients with MS, affecting their personal and professional life. This study is aimed to evaluate memory and visual learning, visual processing speed, and spatial perception in MS patients based on age, gender, and level of education. This cross-sectional study was carried out on 42 MS patients (based on McDonald’s criteria). The level of disability in patients was assessed using EDSS, and cognitive performance was evaluated by the use of judgment of line orientation (JLO), symbol digit modalities test (SDMT), and revised brief visuospatial memory test (BVMT-R). In this study, patients were within the age range of 20-51 years, 73.8% of which were female, and 61.9% had academic degrees. According to the classes of independent variables (gender, education level), no significant difference was observed in the mean scores of dependent variables (JLO, SDMT, and BVMR-T scores) (P>0.05). In addition, age as a confounding variable had no impact (P>0.05). In addition, gender and level of education had no significant interaction (P>0.05). According to the results of the study, age, gender, and education level had no significant effect on memory and visual learning, visual processing speed, and spatial perception.

Phasic alerting increases visual processing speed in amnestic mild cognitive impairment

2021 ◽  
Author(s):  
Marleen Haupt ◽  
Steffen Jödecke ◽  
Annie Srowig ◽  
Natan Napiórkowski ◽  
Christoph Preul ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Processing Speed ◽  
Visual Processing ◽  
Amnestic Mild Cognitive Impairment ◽  
Visual Processing Speed ◽  
Phasic Alerting

scholarly journals Simultaneous object perception deficits are related to reduced visual processing speed in amnestic mild cognitive impairment

2017 ◽  
Vol 55 ◽  
pp. 132-142 ◽  
Author(s):  
Adriana L. Ruiz-Rizzo ◽  
Peter Bublak ◽  
Petra Redel ◽  
Timo Grimmer ◽  
Hermann J. Müller ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Processing Speed ◽  
Visual Processing ◽  
Object Perception ◽  
Amnestic Mild Cognitive Impairment ◽  
Visual Processing Speed

scholarly journals Visual processing speed is linked to functional connectivity between right frontoparietal and visual networks

2020 ◽  
Author(s):  
Svenja Küchenhoff ◽  
Christian Sorg ◽  
Sebastian Schneider ◽  
Oliver Kohl ◽  
Hermann J. Müller ◽  
...  
Keyword(s):  
Functional Connectivity ◽  
Visual Attention ◽  
Processing Speed ◽  
Resting State ◽  
Visual Processing ◽  
Visual Information ◽  
Resting State Fmri ◽  
Healthy Human ◽  
Speed Parameter ◽  
Visual Processing Speed

AbstractVisual information processing requires an efficient visual attention system. The neural theory of visual attention (TVA) proposes that visual processing speed depends on the coordinated activity between frontoparietal and occipital brain areas. Previous research has shown that the coordinated activity between (i.e., functional connectivity, ‘inter-FC’) cingulo-opercular (COn) and right-frontoparietal (RFPn) networks is linked to visual processing speed. However, evidence for how inter-FC of COn and RFPn with visual networks links to visual processing speed is still missing. Forty-eight healthy human adult participants (27 females) underwent resting-state (rs-)fMRI and performed a whole-report psychophysical task. To obtain inter-FC, we analyzed the entire frequency range available in our rs-fMRI data (i.e., 0.01-0.4 Hz) to avoid discarding neural information. Following previous approaches, we analyzed the data across frequency bins (Hz): Slow-5 (0.01-0.027), Slow-4 (0.027-0.073), Slow-3 (0.073-0.198), and Slow-2 (0.198-0.4). We used the mathematical TVA framework to estimate an individual, latent-level visual processing speed parameter. We found that visual processing speed was negatively associated with inter-FC between RFPn and visual networks in Slow-5 and Slow-2, with no corresponding significant association for inter-FC between COn and visual networks. These results provide first empirical evidence that links inter-FC between RFPn and visual networks with the visual processing speed parameter. These findings suggest a direct connectivity between occipital and right frontoparietal, but not frontoinsular, regions, to support visual processing speed.Significance statementAn efficient visual processing is at the core of visual cognition. Here, we provide evidence for a brain correlate of how fast individuals process visual stimuli. We used mathematical modeling of performance in a visual report task to estimate visual processing speed. A frequency-based analysis of resting-state fMRI signals revealed that functional connectivity between the right frontoparietal network and primary and dorsal occipital networks is linked to visual processing speed. This link was present in the slowest, typical frequency of the fMRI signal but also in the higher frequencies that are routinely discarded. These findings imply that the coordinated spontaneous activity between right frontoparietal and occipital regions supports the individual potential of the visual system for efficient processing.

scholarly journals Visual processing speed is modulated by prior knowledge and alertness

2011 ◽  
Vol 11 (11) ◽  
pp. 255-255
Author(s):  
A. Petersen ◽  
S. Vangkilde
Keyword(s):  
Prior Knowledge ◽  
Processing Speed ◽  
Visual Processing ◽  
Visual Processing Speed

scholarly journals Age-Related Changes in Visual Processing Speed

2017 ◽  
Author(s):  
Lauren Gollnick ◽  
Kassidy Ha ◽  
Stephanie Pawek ◽  
Zoe Struder ◽  
Amber Zadravecz
Keyword(s):  
Processing Speed ◽  
Visual Processing ◽  
Age Related ◽  
Visual Processing Speed ◽  
Age Related Changes
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