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Published in Terence R. Anthoney, Neuroanatomy and the Neurologic Exam, 2017
The posterior extent of the lateral O-T gyrus is equally unclear. On the one hand, most authors who mention this gyrus show it as extending back into the occipital lobe (B&K, p. 219 [Fig. 13–6]; W&G, p. 208 [Fig. 5–24] 210; Snel, p. 236 [Fig. 14–3], 237; M&M, p. 53 [Fig. 25], 56; Rom-S, p. 130, 131 [Fig. 8–6]). On the Other hand, all of these same authors, and Noback and Demarest as well (1981, p. 8), describe the gyrus as if it is related laterally only to the inferior temporal gyrus, which lies wholly within the temporal lobe. They do not mention any relationship to the lateral occipital gyri, which make up the lateral surface of the occipital lobe. Also, Heimer considers the lateral O-T gyrus to be the inferior temporal gyrus (1983, p. 73), so he is limiting it to the temporal lobe by definition.
Neural substrates of suicide and suicidal behaviour: from a neuroimaging perspective
Published in Psychiatry and Clinical Psychopharmacology, 2018
Yasin Hasan Balcioglu, Samet Kose
The fMRI also provides an index of resting-state neural activity that is when the subject is not performing any task. In a recent study, increased resting-state functional connectivity of the right amygdala with the left middle temporal area was shown in suicide attempters with MDD [66]. Abnormal baseline brain activity such as increased amplitude of low-frequency fluctuation in the right superior temporal gyrus was also shown in suicide attempters with depression [67]. In a younger sample with MDD, increased resting-state activity was seen in the right superior and left middle temporal, and left middle occipital gyri; while decreased functional connectivity was seen in left superior and middle frontal gyri in suicide attempters. In light of these findings, it could be argued that disruptions in the fronto-limbic or fronto-parietal-cerebellar pathways lead to poor executive functioning, lack of impulse control, cognitive flexibility, and impaired decision-making in in suicide attempters with depression [68].
Suppressing visual hallucinations in an adolescent by occipital transcranial magnetic stimulation: A single-case experimental research design
Published in Neuropsychological Rehabilitation, 2023
Robert Bodén, Josefin Nilsson, Ida Walles, Eva Larsson, Ingela Kristiansen, David Fällmar, Jonas Persson
Comparing the patient to the 42 controls in the five visual resting-state networks revealed a higher activity in the lateral visual network (including the middle and inferior occipital gyri, middle temporal gyrus, fusiform gyrus, and cerebellum anterior lobe in the right hemisphere) on both of the patient’s two baseline MR scans but this was no longer present on the MR scan after the open phase of 20 occipital cTBS treatments over four days (Figure 2(C)). There was also altered activity in the anterior and the medial networks over time, but without a clear correspondence to the cTBS intervention.
Degeneration of gray and white matter differs between hypometabolic and hypermetabolic brain regions in a patient with ALS-FTD: a longitudinal MRI − PET multimodal study
Published in Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration, 2021
Venkateswaran Rajagopalan, Erik P. Pioro
Similarly, in the left superior temporal gyrus, WM connections only at baseline from hypometabolic areas were found to left angular gyrus, fusiform gyrus, Heschl gyrus, insula, hippocampus, amygdala, putamen, rolandic operculum, supramarginal gyrus, superior temporal gyrus (temporal pole), middle, and inferior temporal gyri, and middle and superior occipital gyri (Figure 3(C)). WM connections from hypermetabolic areas of the left superior temporal gyrus were not observed to any brain regions at either baseline or 20.4 months later (not shown).