Organizational strategy influence on visual memory performance after stroke: Cortical/subcortical and left/right hemisphere contrasts

2000 ◽  
Vol 81 (1) ◽  
pp. 89-94
Author(s):  
Gudrun Lange ◽  
William Waked ◽  
Stephen Kirshblum ◽  
John DeLuca
Keyword(s):  
Visual Memory ◽  
Right Hemisphere ◽  
Memory Performance ◽  
Organizational Strategy

scholarly journals Are visual working memory and episodic memory distinct processes? Insight from stroke patients by lesion-symptom mapping

2021 ◽  
Author(s):  
Selma Lugtmeijer ◽  
◽  
Linda Geerligs ◽  
Frank Erik de Leeuw ◽  
Edward H. F. de Haan ◽  
...  
Keyword(s):  
Working Memory ◽  
Episodic Memory ◽  
Visual Working Memory ◽  
Visual Memory ◽  
Right Hemisphere ◽  
Memory Task ◽  
Stroke Patients ◽  
Lesion Symptom Mapping ◽  
Criterion Setting ◽  
The Right

AbstractWorking memory and episodic memory are two different processes, although the nature of their interrelationship is debated. As these processes are predominantly studied in isolation, it is unclear whether they crucially rely on different neural substrates. To obtain more insight in this, 81 adults with sub-acute ischemic stroke and 29 elderly controls were assessed on a visual working memory task, followed by a surprise subsequent memory test for the same stimuli. Multivariate, atlas- and track-based lesion-symptom mapping (LSM) analyses were performed to identify anatomical correlates of visual memory. Behavioral results gave moderate evidence for independence between discriminability in working memory and subsequent memory, and strong evidence for a correlation in response bias on the two tasks in stroke patients. LSM analyses suggested there might be independent regions associated with working memory and episodic memory. Lesions in the right arcuate fasciculus were more strongly associated with discriminability in working memory than in subsequent memory, while lesions in the frontal operculum in the right hemisphere were more strongly associated with criterion setting in subsequent memory. These findings support the view that some processes involved in working memory and episodic memory rely on separate mechanisms, while acknowledging that there might also be shared processes.

A-92 Assessing Perceived Workload on the Brief Visual Memory Test in Traumatic Brain Injury Survivors

2021 ◽  
Vol 36 (6) ◽  
pp. 1139-1139
Author(s):  
Kristina E Smith ◽  
Daniel W Lopez-Hernandez ◽  
Alexis Bueno ◽  
Rachel A Rugh-Fraser ◽  
Bethany A Nordberg ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Verbal Memory ◽  
Visual Memory ◽  
Memory Performance ◽  
Memory Test ◽  
Short Delay ◽  
Subjective Workload ◽  
Perceived Workload ◽  
Nasa Tlx

Abstract Objective We examined perceived workload as it is related to Brief Visual Memory Test-Revised (BVMT-R) short-delay and long-delay performance in traumatic brain injury (TBI) and healthy comparison (HC) participants. Method The sample consisted of 39 TBI participants and 54 HC participants. Demographically corrected BVMT-R scores were used to evaluate short-delay and long-delay performances. The perceived workload was measured using the NASA-TLX. Results ANOVA revealed that the HC group outperformed the TBI group on the BVMT-R short-delay and long-delay score, p < 05, η p 2 = 0.05. ANCOVAs controlling for age were used to evaluate NASA-TLX group differences. In regards to the NASA-TLX, TBI participants reported higher levels of physical demand, effort, frustration and overall subjective workload on the BVMT-R short-delay compared to HC participants, p < 05, η p 2 = 0.01–0.09. Furthermore, on the long-delay of the BVMT-R, the NASA-TLX revealed that the TBI group reported higher levels of temporal demand, effort, frustration and overall subjective workload compared to the HC group, p < 0.05, η p 2 = 0.05–0.14. Conclusions Results revealed that TBI participants demonstrated worse BVMT-R performances than HC participants. However, TBI survivors reported higher perceived workload demands compared to the HC group in both short-delay and long-delay of the BVMT-R. Our findings suggest that TBI impacts non-verbal memory performance in both BVMT-R short-delay and long-delay. Also, brain injury may be impacting TBI survivors’ awareness of their non-verbal memory performance. Further work is required to determine what drives the impaired perception of non-verbal memory performance among TBI survivors.

scholarly journals Rey Visual Design Learning Test performance correlates with white matter structure

2009 ◽  
Vol 21 (2) ◽  
pp. 67-74 ◽  
Author(s):  
Stefan Begré ◽  
Claus Kiefer ◽  
Roland von Känel ◽  
Angela Frommer ◽  
Andrea Federspiel
Keyword(s):  
White Matter ◽  
Test Performance ◽  
Visual Memory ◽  
Memory Performance ◽  
Internal Capsule ◽  
Visual Design ◽  
Design Learning ◽  
Dorsal Hippocampal ◽  
Left And Right ◽  
Learning Test

Objective:Studies exploring relation of visual memory to white matter are extensively lacking. The Rey Visual Design Learning Test (RVDLT) is an elementary motion, colour and word independent visual memory test. It avoids a significant contribution from as many additional higher order visual brain functions as possible to visual performance, such as three-dimensional, colour, motion or word-dependent brain operations. Based on previous results, we hypothesised that test performance would be related with white matter of dorsal hippocampal commissure, corpus callosum, posterior cingulate, superior longitudinal fascicle and internal capsule.Methods:In 14 healthy subjects, we measured intervoxel coherence (IC) by diffusion tensor imaging as an indication of connectivity and visual memory performance measured by the RVDLT. IC considers the orientation of the adjacent voxels and has a better signal-to-noise ratio than the commonly used fractional anisotropy index.Results:Using voxelwise linear regression analyses of the IC values, we found a significant and direct relationship between 11 clusters and visual memory test performance. The fact that memory performance correlated with white matter structure in left and right dorsal hippocampal commissure, left and right posterior cingulate, right callosal splenium, left and right superior longitudinal fascicle, right medial orbitofrontal region, left anterior cingulate, and left and right anterior limb of internal capsule emphasises our hypothesis.Conclusion:Our observations in healthy subjects suggest that individual differences in brain function related to the performance of a task of higher cognitive demands might partially be associated with structural variation of white matter regions.

scholarly journals A-076 Acute Pontine Infarction and Deep White Matter Lesioning: Poly-etiologic Factors and Clinical Correlation with Neuropsychological Impairment and Neuroradiographic Findings

2020 ◽  
Vol 35 (6) ◽  
pp. 868-868
Author(s):  
Pimental P ◽  
Chatten E ◽  
Cart J ◽  
Ciampanelli A
Keyword(s):  
White Matter ◽  
Visual Memory ◽  
Right Hemisphere ◽  
Neuropsychological Testing ◽  
Executive Dysfunction ◽  
Neuropsychological Impairment ◽  
Chronic Obstructive ◽  
Pseudobulbar Palsy ◽  
Cranial Nerve Palsies ◽  
Pontine Infarction

Abstract Objective Pontine infarction may include motor and sensory disturbances, eye movement disorders, cranial nerve palsies, vestibular system symptoms, dizziness, ataxia, transient loss of consciousness, tetraparesis, acute pseudobulbar palsy, and severe sensory-motor deficits (Kumral, Bayülkem, & Evyapan, 2002). Studies of clinical/. neuroradiological correlation are not abundant in the literature (Kim, Lee, Joo, Im, & Lee, 1996). Methods The present case involves a 67-year-old, right-handed Caucasian female with a medical history of hypertension, headaches, hypothyroidism, cardiovascular disease (triple bypass), chronic obstructive pulmonary disease, diabetes mellitus, and abdominal aortic aneurysm. She was referred for neuropsychological testing to evaluate deficits. related to her acute pontine stroke. Results Neuropsychological testing revealed neuropsychological impairment characterized by visual-perceptual motor and visual memory deficits, executive dysfunction, lack of concern/awareness of deficits (anosodiaphoria), decreased impulse control and disinhibition. Bi-hemispheric, cortical/subcortical pathway elements, and a preponderance of right hemisphere involvement correlated with neuroradiographic evidence. MRIs revealed a punctate acute infarct within the right paracentral pons, a. small focus of gradient susceptibility within the parasagittal right parietal lobe, and a left pons and deep ischemic white matter lesioning of the posterior left frontal lobe. Conclusion The present case provided a rare look at poly-etiologic factors associated with acute pontine infarct and associated deep ischemic white matter changes.Neuropsychological testing elucidated the severity and type of neuropsychological impairment which correlated with MRI neuroradiographic findings, and was instrumental in patient interventions. Neurocognitive rehabilitation and formal driving evaluation, given the patient’s visual-perceptual motor and visual memory difficulties and lack of concern/awareness of deficits, protected the patient, family and public.

scholarly journals Predictors of Discharge to Home after Thrombolytic Treatment in Right Hemisphere Infarct Patients

2010 ◽  
Vol 2 ◽  
pp. JCNSD.S6411 ◽  
Author(s):  
E-I. Ruuskanen ◽  
M. Laihosalo ◽  
Je. Kettunen ◽  
H. Losoi ◽  
L. Nurmi ◽  
...  
Keyword(s):  
Hospital Stay ◽  
Cognitive Functions ◽  
Visual Memory ◽  
Right Hemisphere ◽  
Length Of Hospital Stay ◽  
Outcome Variable ◽  
Thrombolytic Treatment ◽  
Discharge Time ◽  
Severe Stroke ◽  
Mild Stroke

Background The aim of the study was to assess the association between thrombolysis and length of hospital stay after right hemisphere (RH) infarct, and to identify which cognitive functions were predictive of discharge. Methods The study group consisted of 75 acute RH patients. Thirty-three patients had thrombolysis. Neuropsychologicalexaminations were performed within 11 days of stroke onset. The cognitive predictors were visual neglect, visual memory, visual search and reasoning and visuoconstructive abilities. The outcome variable was time from stroke to discharge to home. Results Thrombolysis emerged as a statistically significant predictor of discharge time in patients with moderate/severe stroke (NIHSS ≥5). In the total series of patients and in patients with mild stroke (NIHSS <5), thrombolysiswas not significantly associated with discharge time. Milder visuoconstructive defects shortened the hospital stay of the whole patient group and of patients with moderate/severe stroke. In all patient groups, independence in activitiesof daily living (ADL) was a significant single predictor of a shorter hospital stay. The best combination of predictors for discharge was independence in ADL in the total series of patients and in patients with mild stroke, and thrombolysis and independence in ADL in patients with moderate/severe stroke. Conclusions Thrombolytic treatment was a significant predictor of earlier discharge to home in patients with moderate/severe RH infarct, while cognitive functions had less predictive power.

scholarly journals Memory disturbances in Children with Epilepsy: Frontal Lobe Epilepsy, Childhood Absence Epilepsy, and Benign Epilepsy with Centrotemporal Spikes

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
N S Ahmed ◽  
M A Nada ◽  
H H E Afeefy ◽  
E M R Abdellah
Keyword(s):  
Quality Of Life ◽  
Frontal Lobe ◽  
Visual Memory ◽  
Memory Performance ◽  
Memory Function ◽  
School Achievement ◽  
Absence Epilepsy ◽  
Frontal Lobe Epilepsy ◽  
Childhood Absence Epilepsy

Abstract Objectives We aimed to compare and characterize the memory function of children with childhood absence epilepsy (CAE), frontal lobe epilepsy (FLE) and temporal lobe epilepsy (TLE) for early diagnosis, better management and good quality of life Subjects and Methods Memory was examined in 40 children with epilepsy ,aged 8-16. Results Children with FLE showed significant deficits in verbal and visual memory. In addition, type of epilepsy, earlier age at epilepsy onset, and longer active duration of epilepsy were associated with memory problems. Seizure frequency and treatment, however, did not influence memory performance. This study indicates that children with FLE show greater risk of developing memory deficits than children with CAE or BECTS Conclusion Memory disturbances are more common in epileptic children, affecting their school achievement and hence their quality of life in a negative manner and may be linked to a higher incidence of behavioral changes

Emotional trauma and childhood amnesia

2003 ◽  
Vol 4 (2) ◽  
pp. 151-179
Author(s):  
Rhawn Joseph
Keyword(s):  
Visual Memory ◽  
Right Hemisphere ◽  
Emotional Memory ◽  
Wechsler Memory Scale ◽  
Facial Memory ◽  
Short Term Visual Memory ◽  
History Of ◽  
The Right ◽  
Early Trauma ◽  
Negative Memories

It has been reported that, on average, most adults recall first memories formed around age 3.5. In general, most first memories are positive. However, whether these first memories tend to be visual or verbal and whether the period for childhood amnesia (CA) is greater for visual or verbal or for positive versus negative memories has not been determined. Because negative, stressful experiences disrupt memory and can injure memory centers such as the hippocampus and amygdala, and since adults who were traumatized or abused during childhood (TA) reportedly suffer memory disturbances, it was hypothesized that those with a history of early trauma might suffer from a lengthier childhood amnesia and form their first recallable memories at a later age as compared to the general population (GP). Because the right hemisphere matures earlier than the language-dominant left hemisphere, and is dominant for visual and emotional memory, as well as the stress reponse, it was hypothesized that first recallable memories would be visual rather than verbal. Lastly, since stress can injure the brain and disrupt memory, it was hypothesized that the traumatized group would demonstrate memory and intellectual disturbances associated with right hemisphere injury as based on WAIS-R, Wechsler Memory Scale, and facial-memory testing. All hypotheses were supported. Positive and visual memories are formed before negative and verbal memories. TA CA offset, on average, is at age 6.1 versus 3.5 for GPs. TA PIQ (performance IQ), short-term visual memory, and facial memory were significantly reduced.

Neural correlates of olfactory and visual memory performance in 3D-simulated mazes after intranasal insulin application

2016 ◽  
Vol 134 ◽  
pp. 256-263 ◽  
Author(s):  
Yvonne F. Brünner ◽  
Rea Rodriguez-Raecke ◽  
Smiljana Mutic ◽  
Christian Benedict ◽  
Jessica Freiherr
Keyword(s):  
Visual Memory ◽  
Memory Performance ◽  
Neural Correlates ◽  
Intranasal Insulin

Laterality of Lesions and Trait-Anxiety on Working Memory Performance

2002 ◽  
Vol 94 (2) ◽  
pp. 551-558 ◽  
Author(s):  
William D. S. Killgore
Keyword(s):  
Working Memory ◽  
Left Hemisphere ◽  
Cognitive Processing ◽  
Trait Anxiety ◽  
Right Hemisphere ◽  
Digit Span ◽  
Memory Performance ◽  
Brain Lesion ◽  
Cerebral Activation ◽  
The Right

An asymmetry of anterior cerebral activation favoring the right hemisphere has been associated with dispositional negative affect including trait-anxiety, while the opposite appears true of cerebral asymmetry favoring the left hemisphere. It was hypothesized that an asymmetry of cerebral activation, as defined by scores on a measure of trait-anxiety, ipsilateral to the side of an anterior brain lesion would be associated with less efficient cognitive processing than greater activation in the hemisphere contralateral to the lesion. Patients with anterior left ( n = 16) or right ( n = 15) hemisphere lesions completed the State-Trait Anxiety Inventory and several neurocognitive tasks. Of the abilities tested, only Digit Span scores showed an interaction between side of lesion and presumed activation asymmetry. Patients with right- but not with left-hemisphere damage showed significant differences in working memory performance depending on the presumed direction of asymmetry of the two hemispheres, supporting the dual roles of the right hemisphere in affective processing and directed attention.

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