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Source: Neuropsychologia
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Total 127 results found since Jan 2013.
Effect of body-part specificity and meaning in gesture imitation in left hemisphere stroke patients
Publication date: Available online 9 December 2020Source: NeuropsychologiaAuthor(s): Alessia Tessari, Paola Mengotti, Luca Faccioli, Giovanni Tuozzi, Silvia Boscarato, Mariangela Taricco, Raffaella I. Rumiati
Source: Neuropsychologia - December 9, 2020 Category: Neurology Source Type: research
Impact of Unilateral Stroke on Right Hemisphere Superiority in Executive Control
Publication date: Available online 22 November 2020Source: NeuropsychologiaAuthor(s): Shira Russell-Giller, Tingting Wu, Alfredo Spagna, Mandip Dhamoon, Qing Hao, Jin Fan
Source: Neuropsychologia - November 24, 2020 Category: Neurology Source Type: research
Naming errors and dysfunctional tissue metrics predict language recovery after acute left hemisphere stroke
Publication date: Available online 9 October 2020Source: NeuropsychologiaAuthor(s): Erin L. Meier, Shannon M. Sheppard, Emily B. Goldberg, Catherine R. Head, Delaney M. Ubellacker, Alexandra Walker, Argye E. Hillis
Source: Neuropsychologia - October 10, 2020 Category: Neurology Source Type: research
Left frontal aslant tract and lexical selection: Evidence from frontal lobe lesions
Publication date: Available online 10 February 2020Source: NeuropsychologiaAuthor(s): Andrey Zyryanov, Svetlana Malyutina, Olga DragoyAbstractThe frontal aslant tract (FAT) is a white-matter tract connecting the inferior frontal gyrus (IFG) and the supplementary motor complex (SMC). Damage to either component of the network causes spontaneous speech dysfluency, indicating its critical role in language production. However, spontaneous speech dysfluency may stem from various lower-level linguistic deficits, precluding inferences about the nature of linguistic processing subserved by the IFG-SMC network. Since the IFG and the...
Source: Neuropsychologia - February 11, 2020 Category: Neurology Source Type: research
Is bilingualism protective for adults with aphasia?
Publication date: Available online 20 January 2020Source: NeuropsychologiaAuthor(s): Maria Dekhtyar, Swathi Kiran, Teresa GrayAbstractThe bilingual advantage proposes that bilingual individuals have enhanced cognitive control compared to their monolingual counterparts. Bilingualism has also been shown to contribute to cognitive reserve by offsetting the behavioral presentation of brain injury or neural degeneration. However, this effect has not been closely examined in individuals with post-stroke or post-TBI aphasia. Because bilingualism has been suggested as a factor of cognitive reserve, it may provide protective mechan...
Source: Neuropsychologia - January 21, 2020 Category: Neurology Source Type: research
Behavioral deficits in left hemispatial neglect are related to a reduction of spontaneous neuronal activity in the right superior parietal lobule
Publication date: Available online 20 January 2020Source: NeuropsychologiaAuthor(s): Björn Machner, Janina von der Gablentz, Martin Göttlich, Wolfgang Heide, Christoph Helmchen, Andreas Sprenger, Thomas F. MünteAbstractFocal brain lesions may induce dysfunctions in distant brain regions leading to behavioral impairments. Based on this concept of ‘diaschisis’, spatial neglect following stroke has been related to structural damage of the right-lateralized ventral attention network (VAN) and disrupted inter-hemispheric functional connectivity (FC) in the bilateral dorsal attention network (DAN). We questioned whether n...
Source: Neuropsychologia - January 21, 2020 Category: Neurology Source Type: research
Disownership of body parts as revealed by a visual scale evaluation. An observational study
Publication date: Available online 7 January 2020Source: NeuropsychologiaAuthor(s): Roberta Ronchi, Michela Bassolino, Dragana Viceic, Anne Bellmann, Philippe Vuadens, Olaf Blanke, Giuseppe VallarAbstractThe disownership of body parts, that most frequently occurs on the left side of the body, contralateral to right-hemispheric lesions, is an infrequent disorder, as usually assessed by interviews asking for dichotomic “yes/no” responses. This observational study in right-brain-damaged stroke patients investigated the efficacy of a continuous Visual Analog Scale (VAS) to detect body disownership after right brain damage,...
Source: Neuropsychologia - January 8, 2020 Category: Neurology Source Type: research
Interaction of top-down category-level expectation and bottom-up sensory input in early stages of visual-orthographic processing
Publication date: Available online 9 December 2019Source: NeuropsychologiaAuthor(s): Fang Wang, Urs MaurerAbstractHow and when top-down information modulates visual-orthographic processing is an essential question in reading research. In a previous study, we showed that task modulation of print-tuning started at around 170 ms after stimulus presentation in the N1 offset of the ERP, while the N1 onset was yet unaffected. Here we test how prior category-level expectation affects visual-orthographic processing. Familiar, left/right-structured Chinese characters and stroke number matched, unfamiliar Korean characters were pr...
Source: Neuropsychologia - December 9, 2019 Category: Neurology Source Type: research
Familiarity with visual forms contributes to a left-lateralized and increased N170 response for Chinese characters
Publication date: Available online 19 September 2019Source: NeuropsychologiaAuthor(s): Licheng Xue, Urs Maurer, Xuchu Weng, Jing ZhaoAbstractWhile skilled readers produce an increased and left-lateralized event-related-potential (ERP) component, known as N170, for strings of letters compared to strings of less familiar units, it remains unclear whether perceptual familiarity plays an important role in driving increased and left-lateralized N170 for print. The present study addressed this issue by examining N170 responses for regular Chinese characters and cursive Chinese characters which are visually less familiar regardin...
Source: Neuropsychologia - September 20, 2019 Category: Neurology Source Type: research
Deficient body structural description contributes to apraxic end-position errors in imitation
Publication date: Available online 29 July 2019Source: NeuropsychologiaAuthor(s): Hormos Salimi Dafsari, Anna Dovern, Gereon R. Fink, Peter H. WeissAbstractApraxia is a common cognitive deficit after left hemisphere (LH) stroke. It has been suggested that a disturbed representation of the human body underlies apraxic imitation deficits. Thus, we here tested the hypothesis that a deficient body structural description (BSD), i.e., a deficient representation of a body part's position (relative to a standard human body), contributes to apraxic end-position errors in imitation, while controlling for deficits in the semantic rep...
Source: Neuropsychologia - July 30, 2019 Category: Neurology Source Type: research
Cerebellar contribution to vocal emotion decoding: Insights from stroke and neuroimaging
Publication date: Available online 12 July 2019Source: NeuropsychologiaAuthor(s): Marine Thomasson, Arnaud Saj, Damien Benis, Didier Grandjean, Frédéric Assal, Julie PéronAbstractWhile the role of the cerebellum in emotion recognition has been explored with facial expressions, its involvement in the auditory modality (i.e., emotional prosody) remains to be demonstrated. The present study investigated the recognition of emotional prosody in 15 patients with chronic cerebellar ischaemic stroke and 15 matched healthy controls, using a validated task, as well as clinical, motor, neuropsychological, and psychiatric assessmen...
Source: Neuropsychologia - July 13, 2019 Category: Neurology Source Type: research
Effects of amnesia on processing in the hippocampus and default mode network during a naturalistic memory task: A case study
Publication date: Available online 29 June 2019Source: NeuropsychologiaAuthor(s): Christiane S.H. Oedekoven, James L. Keidel, Stuart Anderson, Angus Nisbet, Chris M. BirdAbstractDespite their severely impaired episodic memory, individuals with amnesia are able to comprehend ongoing events. Online representations of a current event are thought to be supported by a network of regions centred on the posterior midline cortex (PMC). By contrast, episodic memory is widely believed to be supported by interactions between the hippocampus and these cortical regions. In this MRI study, we investigated the encoding and retrieval of l...
Source: Neuropsychologia - June 29, 2019 Category: Neurology Source Type: research
Re-learning and remembering in the lesioned brain
We report on two studies that examine whether or not these principles also apply in language re-learning and retention for individuals with acquired deficits in written language production. Study 1 compared distributed vs. clustered training schedules, while Study 2 examined—for the first time in the context of re-learning—the relationship between the spacing of training trials and retention period. This investigation revealed that, despite significant cognitive deficits and brain lesions, remarkably similar principles govern re-learning and retention in the lesioned brain as have been found to apply in neurologically ...
Source: Neuropsychologia - June 19, 2019 Category: Neurology Source Type: research
Emotion and location cues bias conceptual retrieval in people with deficient semantic control
We examined the impact of visuo-spatial, facial emotion and prosody cues and miscues on the retrieval of dominant and subordinate meanings of ambiguous words. Cue photographs provided relevant visuo-spatial or emotional information, consistent with the interpretation of the ambiguous word being probed, while miscues were consistent with an alternative interpretation. We compared the impact of these cues in healthy controls and semantic aphasia patients with deficient control over semantic retrieval following left-hemisphere stroke. Patients showed greater deficits in retrieving the subordinate meanings of ambiguous words, ...
Source: Neuropsychologia - June 2, 2019 Category: Neurology Source Type: research
Grey and white matter substrates of action naming
Publication date: Available online 23 May 2019Source: NeuropsychologiaAuthor(s): Yu Akinina, O.V. Dragoy, M.V. Ivanova, E.V. Iskra, O.A. Soloukhina, A.G. Petryshevsky, O.N. Fedinа, A. Turken, V.M. Shklovsky, N.F. DronkersAbstractDespite a persistent interest in verb processing, data on the neural underpinnings of verb retrieval are fragmentary. The present study is the first to analyze the contributions of both grey and white matter damage affecting verb retrieval through action naming in stroke. We used voxel-based lesion-symptom mapping (VLSM) with an action naming task in 40 left-hemisphere stroke patients. Within the ...
Source: Neuropsychologia - May 25, 2019 Category: Neurology Source Type: research
