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https://www.readbyqxmd.com/read/28859551/fractionating-controlled-memory-processes-and-recall-of-context-in-recognition-memory-a-case-report
#1
Kata Pauly-Takacs, Chris J A Moulin
Recollection has been described as both a recognition memory judgment requiring cognitive control and the ability to retrieve contextual information about a prior occurrence. At the core of this article is the question whether or not these two subcomponents of recollection are dissociable in amnesia. In three experiments, we explored the influence of exclusion task instructions on performance in a single case (CJ), with the view to understand the relative contributions of control and source memory to recognition memory decisions...
September 1, 2017: Neurocase
https://www.readbyqxmd.com/read/28805104/present-and-future-selves-in-parkinson-s-disease
#2
Alexandra Ernst, Joanne Allen, Lydia Dubourg, Céline Souchay
The study of the self in neuropsychological patients raises not only theoretical questions on the relationships between the self, autobiographical memory (AM), and episodic future thinking but also clinical issues for patients' daily life and care. We addressed this issue in Parkinson's disease patients for whom AM and future thinking impairments have been documented. All patients and controls generated and dated up past and future self-images and provided associated past and future events. Our findings suggest a subtle pattern of preservation/impairment of different dimensions (quantitative and qualitative) of self-images, which rely partially on the episodic quality of past and future events...
August 13, 2017: Neurocase
https://www.readbyqxmd.com/read/28789579/reading-on-the-right-when-there-s-nothing-left-probabilistic-tractography-reveals-hemispheric-asymmetry-in-pure-alexia
#3
Michele Veldsman, Tobias Loetscher, Amanda Wood, Amy Brodtmann
We present a patient with reading inexpertise and right hemianopia following left posterior cerebral artery (PCA) stroke. We examine the extent of disruption to reading performance and the extent of white matter tract damage relative to a patient with more limited PCA infarction and isolated right hemianopia. We show white matter disconnection of the temporal occipital fusiform cortex in our pure alexia patient. Connectivity-based laterality indices revealed right hemisphere laterality in the alexia patient; this was not associated with improved reading function...
August 9, 2017: Neurocase
https://www.readbyqxmd.com/read/28786315/enhanced-cognition-and-emotional-recognition-and-reduced-obsessive-compulsive-symptoms-in-two-adults-with-high-functioning-autism-as-a-result-of-deep-transcranial-magnetic-stimulation-dtms-a-case-report
#4
Keren Avirame, Jimmy Stehberg, Doron Todder
We report reduced repetitive behaviors similar to obsessive compulsive disorder and improved emotional recognition and cognitive abilities in two young patients diagnosed with high-functioning Autism as a result of deep transcranial magnetic stimulation (dTMS). The patients received daily high-frequency (5 Hz) dTMS with HAUT-coil over the medial prefrontal cortex for a period of 5-6 weeks. A computerized cognitive battery, tasks for testing emotional recognition, and clinical questionnaires were used to measure the effects of treatment...
August 8, 2017: Neurocase
https://www.readbyqxmd.com/read/28774229/what-role-for-prism-adaptation-in-the-rehabilitation-of-pure-neglect-dyslexia
#5
Radek Ptak
Prism adaptation (PA) has been successfully applied in the rehabilitation of spatial neglect, with significant transfer to classic neglect tests and activities of daily living. However, well-controlled studies were unable to replicate these findings, and recent reports suggest that PA may affect selectively visuo-motor symptoms. Here, a patient with pure left neglect dyslexia was tested before, immediately after, and 24 h after PA. Despite a significant adaptation aftereffect adaptation had no effect omissions, substitutions and letter-based errors...
August 4, 2017: Neurocase
https://www.readbyqxmd.com/read/28691585/hyper-brain-connectivity-in-binge-drinking-college-students-a-diffusion-tensor-imaging-study
#6
Karl Kashfi, Kareem Al-Khalil, Jiancheng Hou, Dan Fang, Ron Anderson, Ravi Rajmohan, Peter Syapin, Michael W O'Boyle
The current study used diffusion tensor imaging to examine patterns/degree of brain connectivity in 12 college-aged binge drinking (BD) and 12 moderate drinking individuals. Voxel-level and region-of-interest analyses revealed increased connectivity of the BD brain in the right corona radiata, right external capsule, and both the right and left cingulum. Also, fractional anisotropy and axial diffusivity values of these regions correlated with a number of drinking behaviors of the BD as well as both groups combined...
July 10, 2017: Neurocase
https://www.readbyqxmd.com/read/28613138/a-neuropsychological-study-of-older-adult-first-time-sex-offenders
#7
Marcelo Rodriguez, Philip Boyce, John Hodges
BACKGROUND/AIMS: The issue of whether sex offenders have cognitive deficits remains controversial. The objective of this study was to compare the neuropsychological function of older adult first time sex-offenders (FTSO), who had not previously been charged with a sexual offence prior to the age of 50, to historical long-term sex offenders (HSO) and non-sex offenders (NSO). The hypotheses were (a) that FTSO would demonstrate greater deficits in executive function, decision-making, and memory compared to non-sex offenders; and (b) the HSOs would present similar neuropsychological deficits to non-sex offenders...
June 14, 2017: Neurocase
https://www.readbyqxmd.com/read/28548027/dissociation-between-preserved-body-structural-description-and-impaired-body-image-following-a-pediatric-spinal-trauma
#8
Gerardo Salvato, Valeria Peviani, Elisa Scarano, Pina Scarpa, Alessandra Leo, Tiziana Redaelli, Michele Spinelli, Maurizio Sberna, Gabriella Bottini
In adult patients, Spinal Cord Injury (SCI) may influence the mental Body Representation (BR). Currently, there is no evidence on the modulation of SCI on BR during early stages of cognitive development. Here, we investigated BR in a 3-year-old child with complete SCI. The patient was administered with a specific battery assessing different BR components. We found evidence for putative classical neuropsychological dissociation between a preserved topological map with impaired semantic knowledge of the body...
May 26, 2017: Neurocase
https://www.readbyqxmd.com/read/28562172/applying-fmri-complexity-analyses-to-the-single-subject-a-case-study-for-proposed-neurodiagnostics
#9
Anca R Rădulescu, Emily R Hannon
Nonlinear dynamic tools have been statistically validated at the group level to identify subtle differences in system wide regulation of brain meso-circuits, often increasing clinical sensitivity over conventional analyses alone. We explored the feasibility of extracting information at the single-subject level, illustrating two pairs of healthy individuals with psychological differences in stress reactivity. We applied statistical and nonlinear dynamic tools to capture key characteristics of the prefrontal-limbic loop...
April 2017: Neurocase
https://www.readbyqxmd.com/read/28513323/modulation-of-somatoparaphrenia-following-left-hemisphere-damage
#10
Daniela D'Imperio, Giampaolo Tomelleri, Giuseppe Moretto, Valentina Moro
Somatoparaphrenic symptoms after left-hemisphere damage are rare. To verify the potential role of body-related sensory (proprioceptive, visual, and somatosensory) manipulation in patients experiencing sensations of hand disownership, the symptoms of a patient suffering from right-hand somatoparaphrenia were monitored and clinical and neuropsychological variables were controlled. Four types of manipulation were administered: changes in spatial position of the hand, multisensory stimulation, and self-observation using video or mirrors...
April 2017: Neurocase
https://www.readbyqxmd.com/read/28504056/corrigendum
#11
(no author information available yet)
No abstract text is available yet for this article.
April 2017: Neurocase
https://www.readbyqxmd.com/read/28485663/can-8-months-of-daily-tdcs-application-slow-the-cognitive-decline-in-alzheimer-s-disease-a-case-study
#12
Martin Bystad, Ingrid Daae Rasmussen, Ole Grønli, Per M Aslaksen
This case study presents a patient with early-onset Alzheimer`s disease, who applied transcranial direct current stimulation (tDCS) daily for 8 consecutive months. This was a much higher frequency than previous tDCS studies. Neuropsychological assessments were conducted before the first tDCS session, after 5 months and after 8 months. After 8 months, the patient's immediate recall improved with 39%, whereas delayed recall improved 23%. Overall, the results revealed that patient's cognitive functions were stabilized...
April 2017: Neurocase
https://www.readbyqxmd.com/read/28457185/deep-brain-stimulation-of-the-anterior-limb-of-the-internal-capsule-for-treatment-of-therapy-refractory-obsessive-compulsive-disorder-ocd-a-case-study-highlighting-neurocognitive-and-psychiatric-changes
#13
Tabina K Choudhury, Joyce E Davidson, Ashwin Viswanathan, Adriana M Strutt
Obsessive compulsive disorder (OCD) is an anxiety disorder characterized by repeated, unwanted thoughts and behaviors. Individuals with this condition often experience significant emotional distress secondary to their symptoms. Additionally, impairments in attention/concentration, processing speed, and executive functions are typically observed. The exact pathology of OCD remains unknown; consequently, it can be difficult to treat patients with severe symptomatology. Deep brain stimulation (DBS) may be a viable treatment option for individuals who do not respond to medication and/or cognitive behavioral therapy...
April 2017: Neurocase
https://www.readbyqxmd.com/read/28447507/akinetic-mutism-reversibility-after-l-dopa-therapy-in-unilateral-left-anterior-cerebral-artery-infarction
#14
Guery Deborah, Elodie Ong, Norbert Nighoghossian
No abstract text is available yet for this article.
April 2017: Neurocase
https://www.readbyqxmd.com/read/28427306/prefrontal-tdcs-and-sertraline-in-obsessive-compulsive-disorder-a-case-report-and-review-of-the-literature
#15
Ulrich Palm, Bianka Leitner, Beatrice Kirsch, Nora Behler, Ulrike Kumpf, Linda Wulf, Frank Padberg, Alkomiet Hasan
Obsessive-compulsive (OC) disorder is a disabling disorder resulting in tremendous individual and social burden. It has a large overlap with depression and anxiety disorders and shows treatment resistance in a relevant proportion of patients. Since a couple of years, different noninvasive brain stimulation methods have been investigated to improve OC symptoms. The application of transcranial direct current stimulation (tDCS) has shown inconsistent results which can probably be attributed to a lack in randomized controlled trials with adequate sample size...
April 2017: Neurocase
https://www.readbyqxmd.com/read/28387593/a-case-of-posterior-cortical-atrophy-with-vertical-neglect
#16
Hilary Glazer, Leila Saadatpour, Leilani Doty, Kenneth M Heilman
Posterior cortical atrophy (PCA) is a syndrome caused by a neurodegenerative disease that often presents with visuospatial deficits, and can be debilitating. PCA is often characterized by elements of Balint's syndrome and dyslexia. The most common underlying pathology has been found to be Alzheimer's disease. Signs of horizontal neglect are frequently associated with PCA, but the presence of vertical (or altitudinal) neglect has not yet been reported in a patient with PCA or other forms of neurodegenerative dementia...
April 2017: Neurocase
https://www.readbyqxmd.com/read/28347212/mapping-nouns-and-finite-verbs-in-left-hemisphere-tumors-a-direct-electrical-stimulation-study
#17
Adrià Rofes, Giannantonio Spena, Andrea Talacchi, Barbara Santini, Antonio Miozzo, Gabriele Miceli
Neurosurgical mapping studies with nouns and finite verbs are scarce and subcortical data are nonexistent. We used a new task that uses finite verbs in six Italian-speaking patients with gliomas in the left language-dominant hemisphere. Language-relevant positive areas were detected only with nouns in four patients, with both tasks yet in distinct cortical areas in one patient, and only with finite verbs in another patient. Positive areas and types of errors varied across participants. Finite verbs provide complementary information to nouns, and permit more accurate mapping of language production when nouns are unaffected by electrical stimulation...
March 27, 2017: Neurocase
https://www.readbyqxmd.com/read/28347207/evaluation-of-the-effectiveness-of-transcranial-direct-current-stimulation-tdcs-and-psychosensory-stimulation-through-docs-scale-in-a-minimally-conscious-subject
#18
Danilo Dimitri, Daniela De Filippis, Valentina Galetto, Marina Zettin
The aim of our study was to assess the effectiveness of transcranial direct current stimulation (tDCS) on alertness improvement in a patient in a minimally conscious state (MCS) by means of disorders of consciousness scale combined with psycho-sensory stimulation. The effects of tDCS on muscle hypertonia through the Ashworth scale were also examined. tDCS was performed through a two-channel intra-cephalic stimulator. After stimulation, the patient followed a psychosensory stimulation training. Results pointed out an increase in DOCunit score, as well as an increase in alertness maintenance and an improvement in muscle hypertonia, although a MCS state persisted...
March 27, 2017: Neurocase
https://www.readbyqxmd.com/read/28165861/-i-feel-your-disgust-and-relief-can-the-action-understanding-system-mirror-neuron-system-be-recruited-to-induce-disgust-and-relief-from-contamination-vicariously-in-individuals-with-obsessive-compulsive-disorder-symptoms
#19
Baland Jalal, Vilayanur S Ramachandran
Research has shown that brain regions mediating disgust (e.g., the insula) become activated when viewing others' disgust, a response mediated, perhaps by the mirror neuron system or the Theory of Mind module. In a novel behavioral experiment, we explore vicarious disgust and relief, in individuals with obsessive-compulsive disorder (OCD) symptoms. Participants (N = 10) provided disgust ratings to self-contamination or watching the contamination of an experimenter; and to the experimenter washing his own hands after the subjects had been contaminated...
February 6, 2017: Neurocase
https://www.readbyqxmd.com/read/28376696/functional-brain-alterations-during-self-reference-processing-in-adolescents-with-sexual-abuse-related-post-traumatic-stress-disorder-a-preliminary-report
#20
Fanny Dégeilh, Armelle Viard, Fabian Guénolé, Malo Gaubert, Pierre-Jean Egler, Stéphanie Egret, Priscille Gerardin, Jean-Marc Baleyte, Francis Eustache, Jacques Dayana, Bérengère Guillery-Girard
We proposed to explore the functional brain changes during a self-reference processing (SRP) task in adolescents with sexual abuse-related post-traumatic stress disorder (N = 10), compared with healthy adolescents (N = 10). While patients showed no behavioral disturbances in (SRP), they exhibited changes in activity and connectivity in regions involved in emotional regulation (amygdala and dorsal prefrontal cortex) and semantic memory (temporal and ventrolateral prefrontal regions). These preliminary results suggest that these alterations may have an effect on self-esteem which may contribute to a possible retention and impairment of symptoms in adulthood...
February 2017: Neurocase
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