A5003681705- Visual perception and processing mechanisms
- Neural and Behavioral Psychology Studies
- Stroke Rehabilitation and Recovery
- Dementia and Cognitive Impairment Research
- Spatial Neglect and Hemispheric Dysfunction
- Acute Ischemic Stroke Management
- Neural dynamics and brain function
- Memory and Neural Mechanisms
- EEG and Brain-Computer Interfaces
- Lipid metabolism and disorders
- Diet, Metabolism, and Disease
- Liver Disease Diagnosis and Treatment
- Cognitive Functions and Memory
- Ophthalmology and Visual Impairment Studies
- Memory Processes and Influences
- Vestibular and auditory disorders
University of Amsterdam
2017-2023
Amsterdam University Medical Centers
2021-2022
Amsterdam Neuroscience
2021
Amsterdam UMC Location University of Amsterdam
2017
Abstract Mid-level visual processing represents a crucial stage between basic sensory input and higher-level object recognition. The conventional model posits that fundamental qualities like color motion are processed in specialized, retinotopic brain regions (e.g., V4 for color, MT/V5 motion). Using atlas-based lesion-symptom mapping disconnectome maps cohort of 307 ischemic stroke patients, we examined the neuroanatomical correlates underlying eight mid-level qualities. Contrary to...
Visual memory for objects involves the integration, or binding, of individual features into a coherent representation. We used novel approach to assess feature using delayed-reproduction task in combination with computational modeling and lesion analysis. assessed stroke patients neurotypical controls on visual working which spatial arrays colored disks were presented. After brief delay, participants either had report color one disk cued by its location color. Our results demonstrate that,...
Working memory and episodic are two different processes, although the nature of their interrelationship is debated. As these processes predominantly studied in isolation, it unclear whether they crucially rely on neural substrates. To obtain more insight this, 81 adults with sub-acute ischemic stroke 29 elderly controls were assessed a visual working task, followed by surprise subsequent test for same stimuli. Multivariate, atlas- track-based lesion-symptom mapping (LSM) analyses performed...
Abstract Objective: Deficits in episodic memory are frequently reported after ischemic stroke. In standard clinical care, is assessed a 20–30 min delay, with abnormal decay over this period being characterized as rapid forgetting (RF). Previous studies have shown prolonged interval (days to weeks) despite normal acquisition, referred accelerated long-term (ALF). Method: We examined whether ALF present stroke patients ( N = 91) using immediate testing (T1), short delay (20–30 min, T2), and...
The classical notion of cognitive impenetrability suggests that perceptual processing is an automatic modular system and not under conscious control. Near consensus now emerging this untenable. However, as recently pointed out by Firestone Scholl, built on quicksand. In most studies claiming perception cognitively penetrable, it remains unclear which actual process has been affected (perception, memory, imagery, input selection or judgment). fact, the only available "proofs" for...
Apathy is common after stroke and has been associated with cognitive impairment. However, causality between post-stroke apathy impairment remains unclear. We assessed the course of in relation to changes functioning survivors. Using Scale (AS) tests on memory, processing speed executive at six- 15 months we tested for associations (1) AS-scores (change in) scores; (2) (persistent/incident/resolved) change scores. Of 117 included participants, 29% had persistent apathy, 13% resolving over...
Visual deficits are common after stroke and powerful predictors for the chronic functional outcome. However, while basic visual field recognition relatively easy to assess with standardized methods, selective in primitives, such as shape or motion, harder identify, they often require a symmetrical bilateral posterior lesion order provoke full deficits. Therefore, we do not know how occur. Nevertheless, can have severe repercussions daily-life functioning. We aimed investigate prevalence...
Introduction We aimed to investigate whether associations between deficits in “mid-range” visual functions and higher-order cognitive stroke patients are more line with a hierarchical, two-pathway model of the brain, or patchwork model, which assumes parallel organization many processing routes cross-talk.Methods A group 182 ischemic was assessed new diagnostic set-up for investigation comprehensive range visuosensory mid-range functions: color, shape, location, orientation, correlated...
Objective: Visual deficits are common after stroke and powerful predictors for the chronic functional outcome. However, while basic visual field recognition relatively easy to assess with standardized methods, selective in primitives, such as shape or motion, harder identify, they often require a symmetrical bilateral posterior lesion order provoke full deficits. We aimed investigate prevalence co-occurrence of hemifield “mid-range” In addition, we looked at repercussions these mid-range on...