Results 181 to 190 of about 19,658 (220)
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Brain, 1983
A 43-year-old woman suffered a spontaneous corpus callosum disconnection, resulting in apraxia and apraxic agraphia confined to the left hand. She initially had a functionally total callosal disconnection. With time, the splenium of the corpus callosum became functional, and a computerized tomographic scan performed five months after the onset showed ...
R T, Watson, K M, Heilman
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A 43-year-old woman suffered a spontaneous corpus callosum disconnection, resulting in apraxia and apraxic agraphia confined to the left hand. She initially had a functionally total callosal disconnection. With time, the splenium of the corpus callosum became functional, and a computerized tomographic scan performed five months after the onset showed ...
R T, Watson, K M, Heilman
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Neurology, 1987
A 39-year-old right-handed woman suffered a ruptured pericallosal aneurysm. Serial MRI studies showed damage to the genu and most of the body of the corpus callosum but not the splenium. Both supplementary motor areas (SMA) appeared intact. We studied the patient's praxis performance at intervals over a 4-month period with a standardized battery.
N R, Graff-Radford +2 more
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A 39-year-old right-handed woman suffered a ruptured pericallosal aneurysm. Serial MRI studies showed damage to the genu and most of the body of the corpus callosum but not the splenium. Both supplementary motor areas (SMA) appeared intact. We studied the patient's praxis performance at intervals over a 4-month period with a standardized battery.
N R, Graff-Radford +2 more
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Journal of the Neurological Sciences, 2012
To report the clinical and imaging findings in a patient with an initial fluctuating disconnection syndrome due to corpus callosal ischemia that ultimately culminated in infarction with persistent symptoms.A 40-year-old, hypertensive, right-handed man presented with transient, stereotyped symptoms of corpus callosal disconnection (intermanual conflict,
Ramachandiran, Nandhagopal +4 more
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To report the clinical and imaging findings in a patient with an initial fluctuating disconnection syndrome due to corpus callosal ischemia that ultimately culminated in infarction with persistent symptoms.A 40-year-old, hypertensive, right-handed man presented with transient, stereotyped symptoms of corpus callosal disconnection (intermanual conflict,
Ramachandiran, Nandhagopal +4 more
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Brain and Language, 1984
Previous theories concerning the function of the corpus callosum have included a "topographic" column-to-column excitatory theory and a diffuse "regional" inhibitory theory. Here it is shown that a topographic inhibitory model, in conjunction with a postulate concerning surround inhibition among cortical columns, produces complementary patterns of ...
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Previous theories concerning the function of the corpus callosum have included a "topographic" column-to-column excitatory theory and a diffuse "regional" inhibitory theory. Here it is shown that a topographic inhibitory model, in conjunction with a postulate concerning surround inhibition among cortical columns, produces complementary patterns of ...
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2022
The corpus callosum is the main white matter tract between the two cerebral hemispheres and it connects both homolog and heterotopic regions in both hemispheres. The approximately 200 million axons are neatly organized from front to back with respect to which areas are connected.
de Haan, E.H.F., Pinto, Y.
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The corpus callosum is the main white matter tract between the two cerebral hemispheres and it connects both homolog and heterotopic regions in both hemispheres. The approximately 200 million axons are neatly organized from front to back with respect to which areas are connected.
de Haan, E.H.F., Pinto, Y.
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1992
Abstract Over the past century numerous cytochemical studies have shown that after various types of stress the polysaccharide callose is deposited, at selected sites, on to the plant cell wall. Callose mainly consists of linear 13-1, 3-glucanase (1-4), and one of its functions is to close the connections that unite protoplasts of ...
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Abstract Over the past century numerous cytochemical studies have shown that after various types of stress the polysaccharide callose is deposited, at selected sites, on to the plant cell wall. Callose mainly consists of linear 13-1, 3-glucanase (1-4), and one of its functions is to close the connections that unite protoplasts of ...
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1993
Abstract Since the publication of the fourth edition of Clinical Neuropsychology, there have been relatively few papers published on the split brain. This in part reflects the dwindling population of patients with complete cerebral commissurotomy (CCC) who also have relatively intact intelligence.
Eran Zaidel +4 more
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Abstract Since the publication of the fourth edition of Clinical Neuropsychology, there have been relatively few papers published on the split brain. This in part reflects the dwindling population of patients with complete cerebral commissurotomy (CCC) who also have relatively intact intelligence.
Eran Zaidel +4 more
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Callosal apraxia without agraphia
Annals of Neurology, 1993AbstractWe describe a patient with left unilateral ideomotor apraxia without left‐sided agraphia caused by a callosal lesion that was demonstrated by magnetic resonance imaging. The clinical features, together with data in the literature, suggest that the callosal fibers for writing are concentrated in the posterior corpus callosum, while those for ...
S, Kazui, T, Sawada
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Plant callose synthase complexes
Plant Molecular Biology, 2001Synthesis of callose (beta-1,3-glucan) in plants has been a topic of much debate over the past several decades. Callose synthase could not be purified to homogeneity and most partially purified cellulose synthase preparations yielded beta-1,3-glucan in vitro, leading to the interpretation that cellulose synthase might be able to synthesize callose ...
D P, Verma, Z, Hong
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