scholarly journals Studies on semantic priming effects in right hemisphere stroke: A systematic review

2013 ◽  
Vol 7 (2) ◽  
pp. 155-163
Author(s):  
Juliana de Lima Müller ◽  
Jerusa Fumagalli de Salles
Keyword(s):  
Systematic Review ◽  
Semantic Priming ◽  
Cerebral Hemisphere ◽  
Semantic Processing ◽  
Right Hemisphere ◽  
Priming Effects ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
Right Hemisphere Stroke

ABSTRACT The role of the right cerebral hemisphere (RH) associated with semantic priming effects (SPEs) must be better understood, since the consequences of RH damage on SPE are not yet well established. Objective: The aim of this article was to investigate studies analyzing SPEs in patients affected by stroke in the RH through a systematic review, verifying whether there are deficits in SPEs, and whether performance varies depending on the type of semantic processing evaluated or stimulus in the task. Methods: A search was conducted on the LILACS, PUBMED and PSYCINFO databases. Results: Out of the initial 27 studies identified, 11 remained in the review. Difficulties in SPEs were shown in five studies. Performance does not seem to vary depending on the type of processing, but on the type of stimulus used. Conclusion: This ability should be evaluated in individuals that have suffered a stroke in the RH in order to provide treatments that will contribute to their recovery.

Lateralised semantic and indirect semantic priming effects in people with schizophrenia

1998 ◽  
Vol 172 (2) ◽  
pp. 142-146 ◽  
Author(s):  
Matthias Weisbrod ◽  
Sabine Maier ◽  
Sabine Harig ◽  
Ulrike Himmelsbach ◽  
Manfred Spitzer
Keyword(s):  
Left Hemisphere ◽  
Semantic Priming ◽  
Language Processing ◽  
Semantic Processing ◽  
Right Hemisphere ◽  
Contextual Information ◽  
Striking Difference ◽  
Semantic Associations ◽  
The Right

BackgroundIn schizophrenia, disturbances in the development of physiological hemisphere asymmetry are assumed to play a pathogenetic role. The most striking difference between hemispheres is in language processing. The left hemisphere is superior in the use of syntactic or semantic information, whereas the right hemisphere uses contextual information more effectively.MethodUsing psycholinguistic experimental techniques, semantic associations were examined in 38 control subjects, 24 non-thought-disordered and 16 thought-disordered people with schizophrenia, for both hemispheres separately.ResultsDirect semantic priming did not differ between the hemispheres in any of the groups. Only thought-disordered people showed significant indirect semantic priming in the left hemisphere.ConclusionsThe results support: (a) a prominent role of the right hemisphere for remote associations; (b) enhanced spreading of semantic associations in thought-disordered subjects; and (c) disorganisation of the functional asymmetry of semantic processing in thought-disordered subjects.

Aphasia Syndromes: Introduction and Value in Clinical Practice

2017 ◽  
Author(s):  
Anastasia M. Raymer ◽  
Leslie J. Gonzalez Rothi
Keyword(s):  
Language Processing ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Communication Disorders ◽  
Auditory Comprehension ◽  
Neurologic Injury ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
Verbal Output

Neurologic damage affecting the left cerebral hemisphere leads to impairments in comprehension and expression of language in the verbal modality (aphasia) and in the written modality (dyslexia and dysgraphia). Impairment patterns take various forms, differing in the fluency/nonfluency of verbal output and integrity of auditory comprehension, repetition, and word retrieval abilities. The divergent classifications of aphasia allow reflection on neural and psychological correlates of specific aspects of language processing in verbal and written modalities. Neurologic damage affecting the right cerebral hemisphere can lead to changes in social and prosodic communication, speaking to the role of the right hemisphere in language processing. Patterns of language breakdown following neurologic injury have implications for assessment and intervention for affected individuals. Whereas perspectives vary on interpretation of the language breakdown across disciplines, this volume’s purpose is to facilitate interactions across disciplines to improve the lives of those with aphasia and related communication disorders.

scholarly journals Delusional Misidentification Incident in a Right Hemisphere Stroke Patient

1991 ◽  
Vol 4 (2) ◽  
pp. 81-87 ◽  
Author(s):  
Andrew W. Young ◽  
Brenda M. Flude ◽  
Andrew W. Ellis
Keyword(s):  
Facial Expressions ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Face Matching ◽  
Right Cerebral Hemisphere ◽  
Processing Abilities ◽  
Unfamiliar Face Matching ◽  
Unfamiliar Face ◽  
The Right ◽  
Right Hemisphere Stroke

We report a delusional misidentification incident lasting some hours in which a man who had suffered a right hemisphere stroke, HW, mistook a student for his daughter. Investigation of HW's face processing abilities showed unimpaired ability to recognize familiar faces and match facial expressions, but severe impairments of unfamiliar face matching both on the Benton test and a task requiring the matching of disguised and undisguised faces. The incident shows some similarity to the Frégoli delusion, which has also been noted following brain injury affecting the right cerebral hemisphere.

Cartographic training for bachelors of tourism in the context of professional competence

2016 ◽  
Vol 10 (2) ◽  
pp. 4-11
Author(s):  
Татьяна Комиссарова ◽  
Tatyana Komissarova ◽  
Елена Гаджиева ◽  
Elena Gadzhieva
Keyword(s):  
Cerebral Hemisphere ◽  
Figurative Language ◽  
Professional Competence ◽  
Professional Skills ◽  
Geographic Space ◽  
Right Cerebral Hemisphere ◽  
Regional Project ◽  
Intermediate Element ◽  
The Right

The article theoretically and practically substantiates the necessity of teaching Mapping for Bachelors of Tourism. The cartographic competence of future professionals is closely connected with their professional skills. The specific feature of the cartographic method is that it allows one to visualize the geographic space or any simulated space for studying. Consequently it develops the student’s spatial thinking, and makes both cerebral hemispheres be active. It is known that the right cerebral hemisphere is responsible for the creative feature of the human nature, and the left cerebral hemisphere is responsible for the logic. The essence of the cartographic method is that in the process of researching the reality an intermediate element appears. And the intermediate element is a map the role of which is of two kinds: it is a research tool and the subject of research presented as a model, a prototype of the reality at the same time. The symbolic figurative language of a map develops the abstract thinking about the real prototype. It should be emphasized that maps help specialists to establish new patterns in location and interconnection of phenomena. Understanding of the graphic image of the structure of the geographical space, highlighting the peculiarities of the tourist and recreational component, administrating the tourist and recreational space, designing a regional project for the development of tourism, creating package tours – all these professional skills are immediately related to students’ intellectual-graphic activities, to their abilities to visualize the geospace, to be good at Mapping. In the final part of the article the cartographic competence is defined as an element of the culture of a competent specialist in tourism’s personality.

scholarly journals Impaired Recognition of Emotional Faces after Stroke Involving Right Amygdala or Insula

2018 ◽  
Vol 39 (01) ◽  
pp. 087-100 ◽  
Author(s):  
Brittany Godin ◽  
Kumiko Oishi ◽  
Kenichi Oishi ◽  
Cameron Davis ◽  
Yessenia Gomez ◽  
...  
Keyword(s):  
Facial Expressions ◽  
Right Hemisphere ◽  
Anterior Insula ◽  
Human Anatomy ◽  
Lesion Volume ◽  
Stroke Patients ◽  
Emotional Faces ◽  
The Right ◽  
Right Hemisphere Stroke

AbstractDespite its basic and translational importance, the neural circuitry supporting the perception of emotional faces remains incompletely understood. Functional imaging studies and chronic lesion studies indicate distinct roles of the amygdala and insula in recognition of fear and disgust in facial expressions, whereas intracranial encephalography studies, which are not encumbered by variations in human anatomy, indicate a somewhat different role of these structures. In this article, we leveraged lesion-mapping techniques in individuals with acute right hemisphere stroke to investigate lesions associated with impaired recognition of prototypic emotional faces before significant neural reorganization can occur during recovery from stroke. Right hemisphere stroke patients were significantly less accurate than controls on a test of emotional facial recognition for both positive and negative emotions. Patients with right amygdala or anterior insula lesions had significantly lower scores than other right hemisphere stroke patients on recognition of angry and happy faces. Lesion volume within several regions, including the right amygdala and anterior insula, each independently contributed to the error rate in recognition of individual emotions. Results provide additional support for a necessary role of the right amygdala and anterior insula within a network of regions underlying recognition of facial expressions, particularly those that have biological importance or motivational relevance and have implications for clinical practice.

scholarly journals Hyperlalia: A Right Cerebral Hemisphere Syndrome

1990 ◽  
Vol 3 (3) ◽  
pp. 143-151 ◽  
Author(s):  
Atsushi Yamadori ◽  
Yukio Osumi ◽  
Masayasu Tabuchi ◽  
Etsuro Mori ◽  
Takashi Yoshida ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cerebral Hemisphere ◽  
Right Hemisphere ◽  
Typical Case ◽  
Behavioural Syndrome ◽  
New Right ◽  
Right Cerebral Hemisphere ◽  
The Right ◽  
The Voice ◽  
The Brain

We describe a new right hemispheric behavioural syndrome for which we propose the name “hyperlalia”. In a typical case an apparently unconcerned and expressionless patient is easily prompted to remarkable volubility with a content which is loose and incoherent. The voice is low and monotonous. All the lesions confirmed by computed tomography of the brain overlapped in the perisylvian area in the territory of the right middle cerebral artery. Loss of a subtle balance between the left hemispheric speech area and the corresponding area in the right hemisphere caused by acute damage of the right perisylvian area may have resulted in disinhibition of the speech function. Similarities and dissimilarities with the known pathology of talkativeness are also discussed.

Dichotic Word-Perception of Aphasic and Normal Subjects

1975 ◽  
Vol 40 (2) ◽  
pp. 379-386 ◽  
Author(s):  
W. H. Moore ◽  
William E. Weidner
Keyword(s):  
Cerebral Hemisphere ◽  
Normal Subjects ◽  
Word Perception ◽  
Control Groups ◽  
Right Cerebral Hemisphere ◽  
Response Task ◽  
The Right ◽  
Cerebral Insult ◽  
Normal Controls

The present investigation examined the role of the right cerebral hemisphere in linguistic perception following a left cerebral insult which had resulted in aphasia. Auditory dichotic procedures were utilized to investigate the ear-preferences of 30 aphasic Ss, grouped relative to the amount of time since the onset of left cerebral insult, and a group of 10 normal control Ss. An oral-response task and a pointing-response task were given. Statistical analyses showed a significant left-ear preference for aphasic Ss who were more than 6 mo. post-cerebral insult; however, Ss less than 6 mo. post-cerebral insult did not demonstrate a significant ear-preference under auditory dichotic stimulation. In contrast, a significant right-ear preference was noted for the normal controls. Significant differences were not shown for the aphasic or control groups on the oral and pointing tasks.

scholarly journals The Role Of Neuroplasticity Types In Aphasia Recovery And Its Influencing Factors: A Systematic Review Of Literature

2017 ◽  
pp. 42
Author(s):  
Alireza Aghaz
Keyword(s):  
Systematic Review ◽  
Influencing Factors ◽  
Left Hemisphere ◽  
Speech Therapy ◽  
Right Hemisphere ◽  
Pubmed Database ◽  
Surrounding Areas ◽  
The Right ◽  
Aphasia Recovery

Background and Objectives: aphasia is common consequence of stroke. Most people with aphasia in the acute phase show some degree of spontaneous recovery, most of which occurs during the first two to three months. Neuro-linguistic mechanisms of recovery in aphasia remain a lot unknown still, but considerably depends to the amount of change plasticity in brain of patients after stroke. The aim of this article is review of the role of Neuroplasticity types in aphasia recovery and its influencing factors: a systematic review of literatureMethods: this study is a review of all articles listed in PubMed database from January 1990 to September, 2016 that were identified using the keywords Neuroplasticity and aphasia (in titles) and language.Results: Three types of changes in the activity of the nervous system after a stroke, is closely linked with aphasia recovery: 1. Reactivation of damaged areas of the left hemisphere or activities it`s surrounding in language tasks 2. Acquisition or manifest of the ability to process language in the nondominant right Hemisphere 3. The wrong activity of nondominant right hemisphere that can prevent language improvement.Discussion and Conclusion: Most of studies have shown involvement of surrounding areas in the left hemisphere lesion in language improvement, others reported employment of the right hemisphere regions and some others have known useful the involvement of both hemispheres in language improvement. It is difficult, aphasia improvement prediction due to the interaction of various factors. The most promising results aphasia treatment for the reorganization of the brain, caused by speech therapy that lead to quick improvements considerably.  

scholarly journals The Role Of Neuroplasticity Types In Aphasia Recovery And Its Influencing Factors: A Systematic Review Of Literature

2017 ◽  
pp. 76
Author(s):  
Alireza Aghaz
Keyword(s):  
Systematic Review ◽  
Influencing Factors ◽  
Left Hemisphere ◽  
Speech Therapy ◽  
Right Hemisphere ◽  
Pubmed Database ◽  
Surrounding Areas ◽  
The Right ◽  
Aphasia Recovery

Background and Objectives: Aphasia is common consequence of stroke. Most people with aphasia in the acute phase show some degree of spontaneous recovery, most of which occurs during the first two to three months. Neuro-linguistic mechanisms of recovery in aphasia remain a lot unknown still, but considerably depends to the amount of change plasticity in brain of patients after stroke. The aim of this article is review of the role of Neuroplasticity types in aphasia recovery and its influencing factors: a systematic review of literatureMethods: This study is a review of all articles listed in PubMed database from January 1990 to September, 2016 that were identified using the keywords Neuroplasticity and aphasia (in titles) and language.Results: Three types of changes in the activity of the nervous system after a stroke, is closely linked with aphasia recovery: 1. Reactivation of damaged areas of the left hemisphere or activities it`s surrounding in language tasks 2. Acquisition or manifest of the ability to process language in the nondominant right Hemisphere 3. The wrong activity of nondominant right hemisphere that can prevent language improvement.Discussion and Conclusion: Most of studies have shown involvement of surrounding areas in the left hemisphere lesion in language improvement, others reported employment of the right hemisphere regions and some others have known useful the involvement of both hemispheres in language improvement. It is difficult, aphasia improvement prediction due to the interaction of various factors. The most promising results aphasia treatment for the reorganization of the brain, caused by speech therapy that lead to quick improvements considerably. 

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