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Topic: Superior temporal gyrus


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In the News (Sun 20 Dec 09)

  
  Temporal lobe - Wikipedia, the free encyclopedia
The superior temporal gyrus includes an area (within the Sylvian fissure) where auditory signals from the cochlea (relayed via several subcortical nuclei) first reach the cerebral cortex.
The underside (ventral) part of the temporal cortices appear to be involved in high-level visual processing of complex stimuli such as faces (fusiform gyrus) and scenes (parahippocampal gyrus).
parietal lobe: postcentral sulcus, postcentral gyrus (1, 2, 3, 43), superior parietal lobule (5), inferior parietal lobule (39-angular gyrus, 40), precuneus (7), intraparietal sulcus
en.wikipedia.org /wiki/Temporal_lobe   (541 words)

  
 Gray, Henry. 1918. Anatomy of the Human Body. Page 824
The superior temporal gyrus lies between the posterior ramus of the lateral fissure and the superior temporal sulcus, and is continuous behind with the supramarginal and angular gyri.
The inferior temporal gyrus is placed below the middle temporal sulcus, and is connected behind with the inferior occipital gyrus; it also extends around the infero-lateral border on to the inferior surface of the temporal lobe, where it is limited by the inferior sulcus.
Lateral to this fissure is the narrow tentorial part of the inferior temporal gyrus, and medial to it the fusiform gyrus, which extends from the occipital to the temporal pole; this gyrus is limited medially by the collateral fissure, which separates it from the lingual gyrus behind and from the hippocampal gyrus in front.
www.bartleby.com /107/pages/page824.html   (446 words)

  
 Neocortical temporal lobe seizures
Temporal lobe epilepsy caused by mesial temporal sclerosis and temporal neocortical lesions.
Hippocampal N-acetylaspartate in neocortical epilepsy and mesial temporal lobe epilepsy.
Neocortical temporal lobe seizures are seizures with focal onset in the neocortex of the temporal lobe.
www.ilae-epilepsy.org /visitors/centre/ctf/neocortical_temporal.html   (3339 words)

  
 Superior frontal gyrus - Wikipedia, the free encyclopedia
The superior frontal gyrus, like the inferior frontal gyrus and the middle frontal gyrus, is more of a region than a true gyrus.
The borders of the middle frontal gyrus are the superior frontal sulcus below; the medial longitudinal fissure along the midline of the brain; and the precentral sulcus behind.
(Neuron vol 50, p 329 [2]) have found evidence that the superior frontal gyrus is involved in self-awareness, in coordination with the action of the sensory system.
en.wikipedia.org /wiki/Superior_frontal_gyrus   (362 words)

  
 LONI: LONI Resource | Downloads | Protocols | Masking Regions of Interest | Superior Temporal Gyrus   (Site not responding. Last check: 2007-10-31)
The entire gyrus is traced, in continuing slices, a straight line is drawn at the top and the bottom of the gyrus connecting the Superior Temporal Sulcus with the Sylvian Fissure (Figure 3).
The posterior boundary of the anterior portion of the STG is the appearance of the mammilary bodies.
The posterior segment of the STG ends at the junction where the horizontal ramus of the Sylvian Fissure and the ascending ramus of the Superior Temporal Sulcus meet.
www.loni.ucla.edu /NCRR/Downloads/Protocols/MaskingRegions_11.html   (587 words)

  
 Glossary of brain regions
fusiform gyrus: a gyrus in the temporal lobe.
Part of a network of brain regions with the amygdala as well as the medial prefrontal cortex, the occipitofrontal cortex, and the superior temporal sulcus, which are involved in the processing of socially salient stimuli (important for social behavior).
It is located primarily in the precentral gyrus and caudal portions of the superior frontal gyrus and the middle frontal gyrus.
www.memory-key.com /MemoryGuide/glossary_brain.htm   (3833 words)

  
 Association fiber pathways to the frontal cortex from the superior temporal region in the rhesus monkey.   (Site not responding. Last check: 2007-10-31)
Association fiber pathways to the frontal cortex from the superior temporal region in the rhesus monkey.
The projections to the frontal cortex that originate from the various areas of the superior temporal region of the rhesus monkey were investigated with the autoradiographic technique.
The middle part of the superior temporal gyrus (areas Ts3 and paAlt) projects predominantly to the lateral frontal cortex (areas 12, upper 46, and 9) and to the dorsal aspect of the medial frontal lobe (areas 9 and 10).
brainmeta.com /neuroanat/a75.html   (312 words)

  
 Afferent cortical connections and architectonics of the superior temporal sulcus and surrounding cortex in the rhesus ...
Afferent cortical connections and architectonics of the superior temporal sulcus and surrounding cortex in the rhesus monkey.
A cyto- and myeloarchitectonic parcellation of the superior temporal sulcus and surrounding cortex in the rhesus monkey has been correlated with the pattern of afferent cortical connections from ipsilateral temporal, parietal and occipital lobes, studied by both silver impregnation and autoradiographic techniques.
Subdivisions of the superior temporal gyrus are tied together in a precise sequence of connections beginning in primary auditory cortex.
brainmeta.com /neuroanat/a85.html   (274 words)

  
 Superior temporal gyrus - Wikipedia, the free encyclopedia
The superior temporal gyrus is one of three (sometimes two) gyri in the temporal lobe of the human brain.
temporal lobe: transverse temporal gyrus (41-42-primary auditory cortex),
superior temporal gyrus (38, 22-Wernicke's area), middle temporal gyrus (21), inferior temporal gyrus (20), fusiform gyrus (36, 37)
en.wikipedia.org /wiki/Superior_temporal_gyrus   (362 words)

  
 Temporal Lobectomy in Pediatric Epilepsy Surgery
The resection is performed along the superior margin of the middle temporal gyrus and extended anteriorly across the superior temporal gyrus anterior to the sphenoid wing.
By unroofing the temporal horn anteriorly, the hippocampal complex is identified.
The choroidal fissure and the attachments between the hippocampus and the amygdala are incised, maintaining the integrity of the arachnoidal border between the superior and inferior compartments.
www.neurosurgery.pitt.edu /epilepsy/pediatric/surgery/temporallobectomy.html   (1054 words)

  
 Anatomy Atlases: Atlas of Human Anatomy in Cross Section: Section 1. Head and Neck
Rostral and dorsal to the corpus callosum (2) on the medial surface of the hemisphere is the cingulate gyrus (34).
In the interhemispheric fissure rostrally are pericallosal (1) and callosomarginal (35) branches of the anterior cerebral artery.
The superior temporal gyrus (23) is continuous with the transverse gyrus of Heschl (24), the primary auditory cortex.
www.anatomyatlases.org /HumanAnatomy/1Section/09.shtml   (650 words)

  
 Temporal lobe lesions - Patient UK
Temporal lobe epilepsy is discussed elsewhere and this article will concentrate on neurological problems caused by temporal lobe deficits.
Lesions of the left superior temporal gyrus produce problems of speech perception with difficulty in discriminating speech and the temporal order of sounds is impaired.
The medial and inferior temporal cortex and hippocampus are responsible for memory.
www.patient.co.uk /showdoc/40000787   (1169 words)

  
 IDM : Left-Handedness References
The twofold purpose of this study was to investigate gray matter volumes in the superior temporal gyrus of the temporal lobe (left and right hemispheres) in left-handed schizophrenic men and left-handed comparison men, in order to determine whether thought disorder in the left-handed schizophrenic men correlated with tissue volume abnormalities.
The superior part of the insula was bilaterally activated, in accordance with a whole-mouth stimulation.
In the approximate region of a standard anterior temporal lobectomy, including 2.5 cm of the superior temporal gyrus and 4.5 cm of both the middle and inferior temporal gyrus, the authors identified language areas in 14.5% of patients tested.
pages.prodigy.net /lofting/lefthand.html   (5772 words)

  
 LEFT TEMPORAL LOBE ABNORMALITIES IN SCHIZOPHRENIA AND THOUGHT DISORDER: A QUANTITATIVE MRI STUDY   (Site not responding. Last check: 2007-10-31)
Laterality and region effects for temporal lobe structures were examined by a mixed-model analysis of variance with one between factor, group (schizophrenic vs. normal), and two within factors, laterality (left vs. right), and region (anterior hippocampus/amygdala, posterior hippocampus, parahippocampal gyrus, and superior temporal gyrus).
Left lateralized volume reductions in anterior amygdala-hippocampal complex, superior temporal gyrus, and parahippocampal gyrus are compatible with MR cross-sectional (area) measurements in anterior amygdala-hippocampal complex [10-12,15] and parahippocampal gyrus [15] and with post-mortem studies reporting tissue reductions in hippocampus and parahippocampal gyrus, [1-3,7-8] and cellular disarray in left amygdala [66] and entorhinal cortex.
For the quantitative measurements the anterior border of the STG was defined by the extent of the amygdalohippocampal complex.
splweb.bwh.harvard.edu:8000 /pages/papers/martha/nejm.html   (6100 words)

  
 [No title]
Sitting at the junction of the temporal, parietal, and occipital lobes, the inferior region (which includes the angular and supramarginal gyri) has no strict anatomical boundaries, is partly coextensive with the posterior-superior temporal gyrus, and includes part of area 7 as well as area 37.
Over the course of evolution the amygdala, hippocampus, and medial temporal lobe began to balloon outward and upward, giving rise to superior temporal lobe, and then continuing to expand in a posterior direction, forming part of the angular and marginal gyrus.
Given its location at the border regions of the somesthetic, auditory, and visual neocortices, and containing neurons and receiving input from these modalities, as the inferior parietal lobule evolved it became increasingly multimodally responsive; a single neuron simultaneously receiving highly processed somesthetic, visual, auditory and movement related input from the various association areas.
brainmind.com /AngularGyrus.html   (731 words)

  
 AUDITORY APHASIAS
Auditory aphasias result from damage to a portion of the temporal lobe that includes part or all of six different cortical areas as defined on the basis of internal structure of the cortex, namely areas 41, 42, 22, 39, 21 and 37 of Brodmann.
Patients with temporal aphasia lost the ability to recognize the combinations of distinctive features that define phonemes and thus were unable to recognize them.
Unlike the nominal aphasias that result from parietal or frontal lobe lesions, the nominal aphasia associated with temporal lobe lesions is is not alleviated by prompting.
www.wanprc.org /luria/auditory1.html   (1006 words)

  
 Progressive Decrease of Left Heschl Gyrus (ResearchIndex)
Schizophrenia but not affective psychosis seems to be characterized by a postonset progression of neocortical gray matter volume loss in the left superior temporal gyrus and thus may not be developmentally fixed.
2 Superior temporal gyrus and the course of early schizophreni..
2 Asymmetries in the superior temporal lobe in male and female..
citeseer.ist.psu.edu /637565.html   (887 words)

  
 Boston Naming Outcome   (Site not responding. Last check: 2007-10-31)
A total of 217 patients with intractable nonlesional left temporal lobe epilepsy were selected according to standard inclusion criteria across eight epilepsy surgery centers.
Patients were combined into four groups representing the most common approaches to left anterior temporal lobectomy: a) tailored resections with intraoperative mapping of eloquent cortex, b) tailored resections with extraoperative mapping, c) standard resections with sparing of the superior temporal gyrus, and d) standard resections including excision of the superior temporal gyrus.
Across surgical techniques the risk for significant decline in visual confrontation naming ability was associated with a later age of recurrent seizure onset and more extensive resection of the lateral temporal neocortex.
www.neuro.mcg.edu /Boze/bnt.html   (235 words)

  
 The Women's Health Site
OBJECTIVE: An abnormal superior temporal gyrus has figured prominently in schizophrenia research, and left superior temporal gyrus volume has been shown to be smaller in male subjects with schizotypal personality disorder.
METHOD: The superior temporal gyrus was drawn on coronal images acquired from female subjects recruited from the community (schizotypal personality disorder group: N=21, comparison group: N=29).
CONCLUSIONS: This study of female subjects with schizotypal personality disorder showed no superior temporal gyrus volume differences, but preliminary findings indicate that among female subjects with schizotypal personality disorder, there is a left-right difference in those who have a family history of mental illness relative to those who do not.
www.thewomenshealthsite.org /article_display.jsp?ArticleID=890   (289 words)

  
 Sex-Specific Expression of Heschl's Gyrus Functional and Structural Abnormalities in Paranoid Schizophrenia -- Rojas et ...
course on the superior surface of the superior temporal gyrus.
The superior temporal gyrus is beige, and Heschl's gyrus is reconstructed in green.
of the gyrus that represents the anatomical correlate of the
ajp.psychiatryonline.org /cgi/content/full/154/12/1655   (5208 words)

  
 Local and Distributed Effects of Apomorphine on Fronto-Temporal Function in Acute Unmedicated Schizophrenia -- Fletcher ...
Likewise, in the same comparison the schizophrenic subjects showed decreases in the superior temporal gyrus bilaterally (far less spatially extensive than those seen in controls with some areas of activation) and in the posterior and midcingulate gyrus, the right middle frontal gyrus, and the left fusiform gyrus (Table 3).
The absence of the normal reciprocal interaction between the prefrontal and the superior temporal cortex in schizophrenia, i.e., failure of task-related deactivation of the superior temporal gyrus in the schizophrenic group, can be interpreted within the context of impaired functional integration.
Whether it reflects a direct effect of the apomorphine on the temporal lobe or a ``downstream'' effect of the anterior cingulate change (i.e., a normalization of task-related cingulate activation influences the fronto-temporal interactions resulting in a normalization of task-related deactivation) is unclear.
www.jneurosci.org /cgi/content/full/16/21/7055   (6064 words)

  
 Transverse temporal gyrus - Wikipedia, the free encyclopedia
The transverse temporal gyri (also called Heschl's gyri) are found in the area of primary auditory cortex in the superior temporal gyrus of the human brain.
Heschl's gyri is named after Richard L. Heschl.
transverse temporal gyrus (41-42-primary auditory cortex), superior temporal gyrus (38, 22-Wernicke's area), middle temporal gyrus (21), inferior temporal gyrus (20), fusiform gyrus (36, 37)
en.wikipedia.org /wiki/Transverse_temporal_gyrus   (269 words)

  
 Ceruloplasmin levels in the human superior temporal gyrus in aging and Alzheimer's disease.   (Site not responding. Last check: 2007-10-31)
In the present study we observed a loss in excess of 1/3 of the copper transport and anti-oxidant protein ceruloplasmin in both the gray and white matter from superior temporal gyrus in Alzheimer's diseased brains compared to age-matched controls.
A decrease in ceruloplasmin could be reflected in decreased cellular metabolic processes such as the electron transport system and a decrease in the ability of the brain to protect itself from oxidative damage.
These results coupled with previous reports from this laboratory on iron regulatory proteins in the brain suggests one way in which cellular dysfunction and oxidative stress occurs in AD may be through a loss of ability to maintain a balance of essential metals.
www.arclab.org /medlineupdates/abstract_8264985.html   (191 words)

  
 Anatomy of Spatial Attention: Insights from Perfusion Imaging and Hemispatial Neglect in Acute Stroke -- Hillis et al. ...
frontal gyrus, angular gyrus, and supramarginal gyrus (BA 44,
that superior temporal gyrus and inferior parietal lobule have
Bruce C, Desimone R, Gross CG (1981) Visual properties of neurons in a polysensory area in superior temporal sulcus of the macaque.
www.jneurosci.org /cgi/content/full/25/12/3161   (5451 words)

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