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Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology

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https://www.readbyqxmd.com/read/29256913/leftward-bias-of-visual-attention-in-patients-with-end-stage-renal-disease-receiving-dialysis-a-neglected-phenomenon
#1
Aleksandra Mańkowska, Kenneth M Heilman, John B Williamson, Bogdan Biedunkiewicz, Alicja Dębska-Ślizień, Michał Harciarek
BACKGROUND AND OBJECTIVE: Patients with end-stage renal disease (ESRD) who are receiving dialysis often have cognitive and behavioral changes, including impairments in sustained attention. Impairments in sustained attention appear to be the consequence of right hemisphere dysfunction. Right hemisphere brain networks are also important for the allocation of spatial attention. Therefore, the objective of this study was to learn whether patients with ESRD receiving dialysis might also have a spatial attentional bias...
December 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/29256912/apathy-and-cognitive-deficits-in-patients-with-transient-global-ischemia-after-cardiac-arrest
#2
Stefan Frisch, Friederike Thiel, Matthias L Schroeter, Regina Tina Jentzsch
BACKGROUND AND OBJECTIVE: Despite the extensive literature on cognitive deficits in the course of transient global ischemia after cardiac arrest with delayed resuscitation, apathy has been studied less frequently and systematically. We aimed to evaluate the frequency of apathy, defined as changes in drive or lack of motivation, and its relation to cognition as well as depression in people with transient global ischemia after cardiac arrest. METHODS: In a retrospective study using the clinical data of 38 cardiac arrest survivors, we analyzed the frequency and severity of deficits in four cognitive domains (attention, memory spans, long-term memory, and executive functions) as well as apathy...
December 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/29256911/semantic-feature-disturbance-in-alzheimer-disease-evidence-from-an-object-decision-task
#3
Kieran J Flanagan, David A Copland, Helen J Chenery, Gerard J Byrne, Anthony J Angwin
BACKGROUND AND OBJECTIVE: It is widely held that semantic disturbance in Alzheimer disease (AD) involves the loss of distinctive features but the relative sparing of nondistinctive features. Many previous studies of semantic feature disturbance have used cognitively challenging tasks with verbal stimuli that allow for potential cognitive confounds. Our objective was to use a task with lower memory demands to investigate distinctive feature disturbance in AD. METHODS: We used an object decision task to compare the processing of distinctive and nondistinctive semantic features in people with AD and age-matched controls...
December 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/29256910/cerad-neuropsychological-battery-arabic-version-regression-based-and-stratified-normative-data-and-effects-of-demographic-variables-on-cognitive-performance-in-older-omanis
#4
Ammar Alobaidy, Hamed Al-Sinawi, Abdullah Al-Asmi, Samir Al-Adawi, Musthafa Mohamed Essa, Mohamed El-Okl, Lakshmanan Jeyaseelan, Lamees Alsawafi, Malak Almawali, Balqees Alabri, Hajer Alhamrashdi
BACKGROUND AND OBJECTIVES: Normative data on cognitive performance for the Omani population are scarce. In this study, we tested a sample of older (≥50 years) community-dwelling Omanis on the Consortium to Establish a Registry for Alzheimer's Disease neuropsychological battery-Arabic version (CERAD-ArNB). We analyzed the participants' cognitive performance and how it was affected by their sex, age, and level of education. METHODS: We enrolled 150 older Arabic-speaking Omanis from March 2014 to June 2015...
December 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/29256909/comparison-of-two-versions-of-the-hospital-anxiety-and-depression-scale-in-assessing-depression-in-a-neurologic-setting
#5
Viral P Patel, Anthony Feinstein
BACKGROUND: The Hospital Anxiety and Depression Scale-Depression Subscale (HADS-D) is widely used to assess depression in people with multiple sclerosis (MS). Developed specifically for use in a medical setting, the scale has one item, "I feel as if I am slowed down," that might represent a significant somatic confounder, possibly biasing the assessment. OBJECTIVE: We sought to determine whether inclusion or exclusion of the "slowed down" item in the HADS-D affects the detection of depression and the scale's associations with impaired cognition, fatigue, and employment status...
December 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/29256908/functional-reorganization-of-right-prefrontal-cortex-underlies-sustained-naming-improvements-in-chronic-aphasia-via-repetitive-transcranial-magnetic-stimulation
#6
Denise Y Harvey, Jamie Podell, Peter E Turkeltaub, Olufunsho Faseyitan, H Branch Coslett, Roy H Hamilton
BACKGROUND AND OBJECTIVE: While noninvasive brain stimulation techniques show promise for language recovery after stroke, the underlying mechanisms remain unclear. We applied inhibitory repetitive transcranial magnetic stimulation (rTMS) to regions of interest in the right inferior frontal gyrus of patients with chronic poststroke aphasia and examined changes in picture naming performance and cortical activation. METHODS: Nine patients received 10 days of 1-Hz rTMS (Monday through Friday for 2 weeks)...
December 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926420/seronegative-paraneoplastic-limbic-encephalitis-associated-with-thymoma
#7
Jaime Toro, David Cuellar-Giraldo, Alejandra Duque, Karla Minota, Jorge Patiño, Manuel García
Paraneoplastic limbic encephalitis is an autoimmune syndrome characterized by the acute or subacute onset of encephalopathy, memory loss, confusion, temporal lobe seizures, and behavioral and mood changes. Although most patients with paraneoplastic limbic encephalitis have antineuronal antibodies, advances in the field now permit the diagnosis without autoantibody test results. In this case illustrating the new diagnostic criteria, we report a 70-year-old woman who was brought to the emergency room after the acute onset of cognitive impairment, altered mental status, and choreoathetoid movements...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926419/peduncular-hallucinosis-and-autonomic-dysfunction-in-anti-aquaporin-4-antibody-syndrome
#8
Renee Berry, Peter K Panegyres
Neuromyelitis optica is a rare, severe inflammatory demyelinating disease of the central nervous system, previously described as affecting only the optic nerve and spinal cord. Since the discovery of a highly specific autoantibody, anti-aquaporin-4, lesions are now recognized outside these regions. We report a man with severe, debilitating symptoms resulting from a symptomatic lesion within the diencephalon, manifesting with abnormal circadian rhythms, autonomic dysfunction, behavioral disturbance, and complex visual hallucinations...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926418/hemispheric-dominance-for-stereognosis-in-a-patient-with-an-infarct-of-the-left-postcentral-sensory-hand-area
#9
Jorge Moll, Ricardo de Oliveira-Souza
The concept of left hemispheric dominance for praxis, speech, and language has been one of the pillars of neurology since the mid-19th century. In 1906, Hermann Oppenheim reported a patient with bilateral stereoagnosia (astereognosis) caused by a left parietal lobe tumor and proposed that the left hemisphere was also dominant for stereognosis. Surprisingly, few cases of bilateral stereoagnosia caused by a unilateral cerebral lesion have been documented in the literature since then. Here we report a 75-year-old right-handed man who developed bilateral stereoagnosia after suffering a small infarct in the crown of the left postcentral gyrus...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926417/the-reading-the-mind-in-the-eyes-test-validity-and-reliability-of-the-thai-version
#10
Thammanard Charernboon, Tiraya Lerthattasilp
BACKGROUND AND OBJECTIVE: Until now there has not been a validated measure of theory of mind available in the Thai language. Our goal in this study was to assess the validity and reliability of our Thai-language translation of the Reading the Mind in the Eyes Test (the "Eyes Test"). METHODS: We gave our Thai version of the Eyes Test to 70 participants: 30 people with schizophrenia and 40 normal controls. We also gave Thai versions of the Faces Test and the Addenbrooke's Cognitive Examination to assess convergent validity...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926416/blood-pressure-variability-and-cognitive-function-among-older-african-americans-introducing-a-new-blood-pressure-variability-measure
#11
Siny Tsang, Scott A Sperling, Moon Ho Park, Ira M Helenius, Ishan C Williams, Carol Manning
BACKGROUND: Although blood pressure (BP) variability has been reported to be associated with cognitive impairment, whether this relationship affects African Americans has been unclear. We sought correlations between systolic and diastolic BP variability and cognitive function in community-dwelling older African Americans, and introduced a new BP variability measure that can be applied to BP data collected in clinical practice. METHODS: We assessed cognitive function in 94 cognitively normal older African Americans using the Mini-Mental State Examination (MMSE) and the Computer Assessment of Mild Cognitive Impairment (CAMCI)...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926415/semantic-memory-in-the-clinical-progression-of-alzheimer-disease
#12
Christophe T Tchakoute, Kristin L Sainani, Victor W Henderson
BACKGROUND AND OBJECTIVE: Semantic memory measures may be useful in tracking and predicting progression of Alzheimer disease. We investigated relationships among semantic memory tasks and their 1-year predictive value in women with Alzheimer disease. METHODS: We conducted secondary analyses of a randomized clinical trial of raloxifene in 42 women with late-onset mild-to-moderate Alzheimer disease. We assessed semantic memory with tests of oral confrontation naming, category fluency, semantic recognition and semantic naming, and semantic density in written narrative discourse...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28632525/clozapine-safety-and-efficacy-for-interictal-psychotic-disorder-in-pharmacoresistant-epilepsy
#13
Vincent Jetté Pomerleau, François Dubeau, Simon Ducharme
Since the middle of the 19th century, both neurologists and psychiatrists have linked psychosis and epilepsy. Clozapine, the most effective antipsychotic drug, alters electroencephalographic activity and carries a significant risk of causing seizures. Unfortunately, this risk limits the drug's potential use in treating pharmacoresistant psychosis in patients with epilepsy. We present a unique case in which we used clozapine successfully as a last resort treatment for chronic interictal psychosis in a 43-year-old woman with severe pharmacoresistant epilepsy and recurrent status epilepticus...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28632524/callosal-motor-impersistence-a-novel-disconnection-syndrome
#14
Hee Jin Kim, Dongyeop Kim, Da-Heen Won, Juhee Chin, Kwang Ho Lee, Sang Won Seo, Kenneth M Heilman, Duk L Na
Motor impersistence, an inability to sustain a certain position or movement, is a motor-intentional disorder, caused more often by right than left hemisphere lesions. Since the right hemisphere is dominant for mediating motor persistence, callosal lesions that disconnect the left hemisphere from the right may induce impersistence of the right upper and lower limbs. After an undiagnosed left callosal infarction, a 65-year-old right-handed man suddenly developed a transient loss of volitional movement of his left leg...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28632523/frontotemporal-dementia-presenting-as-gambling-disorder-when-a-psychiatric-condition-is-the-clue-to-a-neurodegenerative-disease
#15
Giacomo Tondo, Fabiola De Marchi, Emanuela Terazzi, Marta Sacchetti, Roberto Cantello
Behavioral variant frontotemporal dementia, the most common form of frontotemporal dementia, is characterized by executive dysfunction and changes in personality and behavior, sometimes with associated psychiatric disorders. We report a man who suddenly developed a gambling disorder when he was 55 years old. A year later he developed personality changes of agitation, euphoria, and disinhibition, along with binge eating and dysthymia. He did not improve on paroxetine 40 mg/day. Two years after the onset of his symptoms, he came to our clinic for evaluation...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28632522/relationship-of-reaction-time-to-perception-of-a-stimulus-and-volitionally-delayed-response
#16
Kimford J Meador, Alan Boyd, David W Loring
BACKGROUND AND OBJECTIVE: Initiation of response in a simple reaction time (RT) task may precede conscious perception of the stimulus. Since volitionally delayed responses may require conscious perception of the stimulus before response initiation, it has been hypothesized that volitionally delayed responses will markedly delay RT. METHODS: We conducted two experiments with separate groups of healthy volunteers (n=16; n=13) who performed computerized simple and choice RT tasks...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28632521/verbal-and-figural-fluency-in-temporal-lobe-epilepsy-does-hippocampal-sclerosis-affect-performance
#17
Ioannis Zalonis, Foteini Christidi, Artemios Artemiadis, Constantinos Psarros, George Papadopoulos, George Tsivgoulis, Stergios Gatzonis, Anna Siatouni, Georgios Velonakis, Efstratios Karavasilis, Evangelia Kararizou, Nikolaos Triantafyllou
BACKGROUND AND OBJECTIVES: Clinicians commonly use verbal and nonverbal measures to test fluency in patients with epilepsy, either during routine cognitive assessment or as part of pre- and postsurgical evaluation. We hypothesized that patients with mesial temporal lobe epilepsy (TLE) with hippocampal sclerosis would perform worse than patients with lateral TLE in both verbal and design fluency. METHODS: We assessed semantic, phonemic, and nonverbal fluency in 49 patients with TLE: 31 with lateral TLE and 18 with mesial TLE plus hippocampal sclerosis...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28632520/are-sex-related-category-specific-differences-in-semantic-tasks-innate-or-influenced-by-social-roles-a-viewpoint
#18
Guido Gainotti
In semantic tasks, sex-related categorical differences, in the form of better processing of fruits and vegetables by women and of artifacts (human-made objects) and animals by men, have been reported both in healthy participants and in brain-damaged patients. Researchers' interpretation of these sex-related categorical asymmetries has, however, been controversial, being connected with the more general (innatist versus experience-dependent) interpretations that had been given of the mechanisms subsuming the categorical organization of the brain...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28323685/ipsilateral-tremor-like-grasp-reaction-in-a-patient-with-ischemic-stroke
#19
Yuichiro Inatomi, Makoto Nakajima, Toshiro Yonehara, Yukio Ando
Reports of involuntary ipsilateral movements after a stroke are rare, and none have described a patient with both an instinctive grasp reaction and tremor-like movement ipsilateral to the acute stroke lesion. We here report such a patient. A 76-year-old right-handed woman with a past history of left thalamic hemorrhage developed left hemiparesis, an instinctive grasp reaction, and a peculiar involuntary movement of her right arm. This involuntary movement was stereotyped and sometimes rhythmical, with a groping or picking-like action...
March 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28323684/shifting-spatial-neglect-with-repeated-line-bisections-possible-role-of-lateralized-attentional-fatigue
#20
Mary Woods, John B Williamson, Keith D White, Charles G Maitland, Kenneth M Heilman
BACKGROUND AND OBJECTIVE: Many patients who have signs of neglect immediately after a right hemisphere stroke remain disabled even when they improve on tests of neglect. Few patients are tested for attentional persistence and fatigue despite their importance in many instrumental activities. To investigate whether stimulus repetition might alter the allocation of attention, we repeatedly tested a patient 16 weeks after she developed hemispatial neglect from a right hemisphere stroke. METHODS: During each of three testing sessions given in 1 day, we asked the patient to bisect 90 lines of two lengths, presented in 30-trial blocks in three locations: left, center, and right of her midsagittal plane, partially counterbalanced across sessions...
March 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
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