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https://www.readbyqxmd.com/read/27636183/a-method-for-safely-resecting-anterior-butterfly-gliomas-the-surgical-anatomy-of-the-default-mode-network-and-the-relevance-of-its-preservation
#1
Joshua D Burks, Phillip A Bonney, Andrew K Conner, Chad A Glenn, Robert G Briggs, James D Battiste, Tressie McCoy, Daniel L O'Donoghue, Dee H Wu, Michael E Sughrue
OBJECTIVE Gliomas invading the anterior corpus callosum are commonly deemed unresectable due to an unacceptable risk/benefit ratio, including the risk of abulia. In this study, the authors investigated the anatomy of the cingulum and its connectivity within the default mode network (DMN). A technique is described involving awake subcortical mapping with higher attention tasks to preserve the cingulum and reduce the incidence of postoperative abulia for patients with so-called butterfly gliomas. METHODS The authors reviewed clinical data on all patients undergoing glioma surgery performed by the senior author during a 4-year period at the University of Oklahoma Health Sciences Center...
September 16, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27107764/negative-symptoms-and-their-association-with-depressive-symptoms-in-the-long-term-course-of-schizophrenia
#2
Wolfram An der Heiden, Anne Leber, Heinz Häfner
Depressive symptoms abound in schizophrenia and even in subclinical states of the disorder. We studied the frequency of these symptoms and their relationship to negative symptoms from the first psychotic episode on over a long-term course of 134 months on data for 107 patients in our ABC Schizophrenia Study. Prevalence rates of 90 % for presenting at least one negative symptom and of 60 % for presenting at least one depressive symptom in the first psychotic episode illustrate the frequency of these syndromes...
August 2016: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/27054957/does-impaired-socioemotional-functioning-account-for-behavioral-dysexecutive-disorders-evidence-from-a-transnosological-study
#3
Pauline Narme, Martine Roussel, Harold Mouras, Pierre Krystkowiak, Olivier Godefroy
Behavioral dysexecutive disorders are highly prevalent in patients with neurological diseases but cannot be explained by cognitive dysexecutive impairments. In fact, the underlying mechanisms are poorly understood. Given that socioemotional functioning underlies appropriate behavior, socioemotional impairments may contribute to the appearance of behavioral disorders. To investigate this issue, we performed a transnosological study. Seventy-five patients suffering from various neurological diseases (Alzheimer's disease (AD), Parkinson's disease (PD), frontotemporal lobar degeneration, and stroke) were included in the study...
April 7, 2016: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/26933381/a-case-of-anterior-cerebral-artery-a1-segment-hypoplasia-syndrome-presenting-with-right-lower-limb-monoplegia-abulia-and-urinary-incontinence
#4
Manoj Lakhotia, Hans Raj Pahadiya, Gopal Raj Prajapati, Akanksha Choudhary, Ronak Gandhi, Hemant Jangid
No abstract text is available yet for this article.
January 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/26287755/psychosis-psychedelic-substance-misuse-and-head-injury-a-case-report-and-23-year-follow-up
#5
Musa Sami, Katie Piggott, Claire Coysh, Antonio Fialho
BACKGROUND: This study describes the case of a 57 year old gentleman with a previous severe brain injury who developed a severe psychotic disorder 19 years after the injury. This appears to have been precipitated by heavy psychedelic substance use, including cannabis, salvia divinorum, ketamine, LSD, cocaine and DMT amongst others. The psychosis remained in the absence of drug intoxication and was associated with prominent apathy, lack of concern and abulia. CASE STUDY: This study discusses the heavy psychedelic substance misuse possibly potentiating a transition to psychosis in this individual...
2015: Brain Injury: [BI]
https://www.readbyqxmd.com/read/26248719/psychosis-psychedelic-substance-misuse-and-head-injury-a-case-report-and-23-year-follow-up
#6
Musa Sami, Katie Piggott, Claire Coysh, Antonio Fialho
BACKGROUND: This study describes the case of a 57 year old gentleman with a previous severe brain injury who developed a severe psychotic disorder 19 years after the injury. This appears to have been precipitated by heavy psychedelic substance use, including cannabis, salvia divinorum, ketamine, LSD, cocaine and DMT amongst others. The psychosis remained in the absence of drug intoxication and was associated with prominent apathy, lack of concern and abulia. CASE STUDY: This study discusses the heavy psychedelic substance misuse possibly potentiating a transition to psychosis in this individual...
August 7, 2015: Brain Injury: [BI]
https://www.readbyqxmd.com/read/26226092/integrated-genomic-characterization-of-a-pineal-parenchymal-tumor-of-intermediate-differentiation
#7
REVIEW
Yun Jee Kang, Wenya Linda Bi, Adrian M Dubuc, Louine Martineau, Azra H Ligon, Aaron L Berkowitz, Ayal A Aizer, Eudocia Q Lee, Keith L Ligon, Shakti H Ramkissoon, Ian F Dunn
BACKGROUND: Pineal parenchymal tumors of intermediate differentiation (PPTIDs) are rare lesions. The differential diagnosis and management strategy for PPTIDs can be challenging because of the variable prognostic and pathologic characteristics of these tumors. METHODS: A 24-year-old man presented with progressive headaches, gait abnormalities, and abulia. Magnetic resonance imaging revealed a large T1-hypointense, T2-isointense, contrast-enhancing, partially cystic mass of the pineal and tectal region...
January 2016: World Neurosurgery
https://www.readbyqxmd.com/read/26135487/abulia-following-an-episode-of-cardiac-arrest
#8
Vismay Dinesh Naik
The word 'abulia' means a lack of will, initiative or drive. The symptoms of abulia include lack of spontaneous action and speech, reduced emotional responsiveness and social interaction, poor attention and easy distractibility. These symptoms are independent of reduced levels of consciousness or cognitive impairment. We describe a case of a socially active 72-year-old female patient who presented with symptoms of abulia which may have occurred due to damage of the frontosubcortical circuits following an episode of cardiac arrest...
July 1, 2015: BMJ Case Reports
https://www.readbyqxmd.com/read/25854928/primary-progressive-speech-abulia
#9
Nicholas J Milano, Kenneth M Heilman
BACKGROUND AND OBJECTIVE: Primary progressive aphasia (PPA) is a neurodegenerative disorder characterized by progressive language impairment. The three variants of PPA include the nonfluent/agrammatic, semantic, and logopenic types. The goal of this report is to describe two patients with a loss of speech initiation that was associated with bilateral medial frontal atrophy. METHODS AND RESULTS: Two patients with progressive speech deficits were evaluated and their examinations revealed a paucity of spontaneous speech; however their naming, repetition, reading, and writing were all normal...
2015: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/25384076/a-case-of-abulia-status-post-right-middle-cerebral-artery-territory-infarct-treated-successfully-with-olanzapine
#10
David R Spiegel, Aparna Chatterjee
Abulia refers to a pathological deficit of willpower. Disruption of frontal-subcortical-mesolimbic circuits caused by lesions in certain central nervous system structures has been associated with abulia. Given the neurobiological link between the dopaminergic reward system and the psychological phenomenon of motivation, it has been speculated that modulating dopaminergic neurotransmission will potentially alter the clinical presentation of abulia. We present a case of abulia S/P right middle cerebral artery, treated successfully with olanzapine...
November 2014: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/25379445/the-circuitry-of-abulia-insights-from-functional-connectivity-mri
#11
J S Siegel, A Z Snyder, N V Metcalf, R P Fucetola, C D Hacker, J S Shimony, G L Shulman, M Corbetta
BACKGROUND: Functional imaging and lesion studies have associated willed behavior with the anterior cingulate cortex (ACC). Abulia is a syndrome characterized by apathy and deficiency of motivated behavior. Abulia is most frequently associated with ACC damage, but also occurs following damage to subcortical nuclei (striatum, globus pallidus, thalamic nuclei). We present resting state functional connectivity MRI (fcMRI) data from an individual who suffered a stroke leading to abulia. We hypothesized that, although structural imaging revealed no damage to the patient's ACC, fcMRI would uncover aberrant function in this region and in the relevant cortical networks...
2014: NeuroImage: Clinical
https://www.readbyqxmd.com/read/25106836/bilateral-anterior-choroidal-artery-infarction-presenting-with-progressive-somnolence
#12
Brechtje van Son, Jan Vandevenne, Pieter Viaene
A 55-year-old woman was admitted with a 3 days history of increasing lethargy with bradyphrenia and apathy. She progressively developed severe somnolence with marked abulia, right hemiparesis, right hemianopsia, and pseudobulbar palsy. Brain magnetic resonance imaging showed the rare image of bilateral acute anterior choroidal artery infarction. Pseudobulbar mutism and in rare cases abulia have been described in acute anterior choroidal artery infarction contralateral to an older lesion in mirror position. Although neurologic deterioration is not infrequent in anterior choroidal artery territory infarcts, the absence of focal neurologic signs on admission is rare and did not raise suspicion of acute stroke...
September 2014: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/25041813/neuropsychological-study-of-amyotrophic-lateral-sclerosis-and-parkinsonism-dementia-complex-in-kii-peninsula-japan
#13
Akihiro Shindo, Yukito Ueda, Shigeki Kuzuhara, Yasumasa Kokubo
BACKGROUND: The Kii peninsula of Japan is one of the foci of amyotrophic lateral sclerosis and parkinsonism-dementia complex (ALS/PDC) in the world. The purpose of this study is to clarify the neuropsychological features of the patients with ALS/PDC of the Kii peninsula (Kii ALS/PDC). METHODS: The medical interview was done on 13 patients with Kii ALS/PDC, 12 patients with Alzheimer's disease, 10 patients with progressive supranuclear palsy, 10 patients with frontotemporal lobar degeneration and 10 patients with dementia with Lewy bodies...
2014: BMC Neurology
https://www.readbyqxmd.com/read/24462122/n-type-calcium-channel-antibody-mediated-paraneoplastic-limbic-encephalitis-a-diagnostic-challenge
#14
Carlos Kamiya-Matsuoka, David Blas-Boria, Michelle D Williams, Pedro Garciarena, Sudhakar Tummala, Ivo W Tremont-Lukats
BACKGROUND: The etiology of encephalitis presents a diagnostic challenge and often remains a mystery. However, current technological advances using antibodies can enable a definitive diagnosis in cases that would previously have been suspected to be idiopathic or viral encephalitis. Our objective is to show that tonsil neuroendocrine carcinoma can present initially as limbic encephalitis mediated by N-type calcium channel antibodies and to highlight the diagnostic confusion before cancer detection...
March 15, 2014: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/24311062/agomelatine-an-agent-against-anhedonia-and-abulia
#15
REVIEW
J Thome, P Foley
Anhedonia and abulia are syndromes often presented as components of various psychiatric and neurological disorders, including depression, schizophrenia, stroke, multiple sclerosis and brain injury. On the basis of the hypothesis that alterations in the dopaminergic motivational system might be involved in the etiopathogenesis of these clinical phenomena, the antidepressant agomelatine is a highly interesting candidate substance for their treatment because of its indirect dopaminergic effects resulting from its melatoninergic and partial anti-serotoninergic properties...
August 2015: Journal of Neural Transmission
https://www.readbyqxmd.com/read/23634967/social-motivation-in-individuals-with-isolated-cleft-lip-and-palate
#16
Ellen van der Plas, Timothy R Koscik, Amy L Conrad, David J Moser, Peg Nopoulos
Social isolation is common among individuals with isolated cleft lip and palate (ICLP), but the available data on why this may be are mixed. We present a novel theory relating to reduced social motivation in ICLP, called the social abulia hypothesis. Based on this hypothesis, we predicted that reduced social motivation would lead to reduced responsiveness to negative social feedback, in terms of both explicit responses and noncontrolled, psychophysiological responses. Twenty males with ICLP and 20 normal comparison males between 13 and 25 years old participated in the study...
2013: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/23372968/intracranial-phosphaturic-mesenchymal-tumor-mixed-connective-tissue-variant-presenting-without-oncogenic-osteomalacia
#17
Regina S Bower, Wilson P Daugherty, Caterina Giannini, Ian F Parney
BACKGROUND: Phosphaturic mesenchymal tumor, mixed connective tissue variant (PMTMCT) is a rare tumor typically occurring in soft tissues and bone, causing oncogenic (tumor-induced) osteomalacia (TIO) through secretion of the phosphaturic hormone, fibroblast growth factor-23 (FGF-23). Rare tumors identical to PMTMCT occur without known TIO. Intracranial localization of PMTMCT is extremely rare, with only two cases reported in the literature. We present a very unusual case of a patient with an intracranial PMTMCT that presented with neurologic changes without osteomalacia...
2012: Surgical Neurology International
https://www.readbyqxmd.com/read/22821126/micrographia-and-abulia-due-to-frontal-subcortical-infarction
#18
Kengo Maeda, Ryo Idehara, Tomoyuki Shiraishi
No abstract text is available yet for this article.
2012: Internal Medicine
https://www.readbyqxmd.com/read/22713407/functional-neuroanatomy-and-behavioural-correlates-of-the-basal-ganglia-evidence-from-lesion-studies
#19
REVIEW
Peter Ward, Stefano Seri And, Andrea Eugenio Cavanna
INTRODUCTION: The basal ganglia are interconnected with cortical areas involved in behavioural, cognitive and emotional processes, in addition to movement regulation. Little is known about which of these functions are associated with individual basal ganglia substructures. METHODS: Pubmed was searched for literature related to behavioural, cognitive and emotional symptoms associated with focal lesions to basal ganglia structures in humans. RESULTS: Six case-control studies and two case reports were identified as relevant...
2013: Behavioural Neurology
https://www.readbyqxmd.com/read/22448836/willed-action-and-its-impairments
#20
M Jahanshahi
Actions are goal-directed behaviours that usually involve movem ent. There is evidence that intentional self-generated actions (willed actions) are controlled differently from routine, stereotyped actions that are externally triggered by environmental stimuli. We review evidence from investigations using positron emission tomography (PET), recordings of movement-related cortical potentials (MRCPs) or transcranial magnetic stimulation (TMS), and conclude that willed actions are controlled by a network of frontal cortical (dorsolateral prefrontal cortex, supplementary motor area, anterior cingulate) and subcortical (thalamus and basal ganglia) areas...
September 1, 1998: Cognitive Neuropsychology
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