Related Experiment Video
Updated: May 3, 2026
10:15
Utilizing Repetitive Transcranial Magnetic Stimulation to Improve Language Function in Stroke Patients with Chronic Non-fluent Aphasia
Published on: July 2, 2013
17.4K
Crossed aphasia. I: A case-study with purely deep lesion
M Laiacona1, C Stangalino1, L Lorenzi1
1Neuropsychology Unit, Neurology Department, Salvatore Maugeri Clinica del Lavoro Foundation, Medical Centre of Rehabilitation, Veruno (NO), Italy.
Behavioural Neurology
|February 4, 2014
Summary
A right thalamic hemorrhage caused subcortical aphasia in a patient, leading to acalculia and impaired affective language. This case highlights right hemisphere involvement in language processing.
Area of Science:
- Neuroscience
- Neurology
- Cognitive Science
Background:
- Right thalamic hemorrhage is a rare cause of neurological deficits.
- Understanding the role of the right hemisphere in language is crucial.
Purpose of the Study:
- To report a unique case of subcortical aphasia following a right thalamic hemorrhage.
- To investigate the specific language and cognitive deficits associated with right thalamic lesions.
Main Methods:
- Case study of a right-handed male patient (MR) with right thalamic hemorrhage.
- Clinical assessment of language, calculation, praxis, and visuospatial functions.
Main Results:
- The patient presented with subcortical aphasia, characterized by acalculia but not apraxia.
- Impairments in affective language, unilateral neglect, and a strong position preference were observed, functions typically associated with the right hemisphere.
Conclusions:
- This case suggests a significant role of the right thalamus and associated structures in subcortical aphasia.
- The findings challenge traditional models of hemispheric lateralization for language functions, indicating right hemisphere contributions to aspects of language processing and spatial cognition.
Related Concept Videos
01:10Higher Mental Functions of the Brain: Language
6.0K
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
6.0K
01:12Visual Agnosia
2.0K
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
2.0K
01:14Directional Terms
13.6K
Directional terms are essential for describing the relative locations of different body structures. For instance, an anatomist might describe one band of tissue as "inferior to" another, or a physician might describe a tumor as "superficial to" a deeper body structure. These terms often use comparative terms in pairs to trace out the relative locations of one body part to another or descriptions of body tissues like the deeper ones from superficially present with reference to...
13.6K
01:17Hemorrhagic Stroke l: Introduction
20
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
20
01:26Transient Ischemic Attack l: Introduction
18
A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
18
01:15Ischemic Stroke l: Introduction
44
Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
44