Two distinct projection areas from tongue nerves in the frontal operculum of macaque monkeys as revealed with evoked potential mapping

  title={Two distinct projection areas from tongue nerves in the frontal operculum of macaque monkeys as revealed with evoked potential mapping},
  author={Hisashi Ogawa and Shin-ichi Ito and Tomokiyo Nomura},
  journal={Neuroscience Research},
Thalamic Input to Representations of the Teeth, Tongue, and Face in Somatosensory Area 3b of Macaque Monkeys
None of the authors' injections, including those into the representation of the tongue, labeled neurons in VPMpc, the thalamic taste nucleus, Thus, area 3b does not appear to be involved in processing taste information from theThalamus.
Vagal input to lateral area 3a in cat cortex.
Vagal input to the sensorimotor cortex in cats resembles deep rather than cutaneous somatic input, similar to the localization of nociceptive-specific input to area 3a in monkeys.
Glossopharyngeal Nerve Evoked Potentials after Stimulation of the Posterior Part of the Tongue in Dogs
The glossopharyngeal nerve action potentials and cortical potentials elicited by the stimulation of the posterior one-third of the tongue can be recorded and represent a new means for intraoperative monitoring of patients undergoing surgery in the brainstem via the cerebellopontine angle.
Connections of the ventral granular frontal cortex of macaques with perisylvian premotor and somatosensory areas: Anatomical evidence for somatic representation in primate frontal association cortex
In macaque monkeys with injections of tritiated amino acids or horseradish peroxidase in the ventrolateral granular frontal cortex, we observed extensive anterograde and retrograde labeling of the
Corticocortical projections to representations of the teeth, tongue, and face in somatosensory area 3b of macaques
The tongue representation appeared to be unique in area 3b in that it also received inputs from areas in the anterior upper bank of the lateral sulcus and anterior insula that may include the primary gustatory area (area G) and other cortical taste‐processing areas, as well as a region of lateral prefrontal cortex (LPFC) lining the principal sulcus.
Cortical network for representing the teeth and tongue in primates.
  • J. Kaas, H. Qi, Soumya Iyengar
  • Biology, Psychology
    The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology
  • 2006
Evidence is presented that the representations of the tongue also get information from the taste nucleus of the thalamus, VPMpc, and some or all of the currently defined somatosensory areas of cortex may be involved in processing gustatory, as well as tactile, Information from the tongue and thus have a role in the biologically important function of evaluating food in the mouth.
Laterality of human primary gustatory cortex studied by MEG.
The results suggest that unilateral gustatory stimulation will activate the transitional cortex between the insula and the parietal operculum bilaterally in humans.


Connections of the fronto-parietal operculum and the postcentral gyrus with the posterior ventral thalamic nucleus, especially its medial nucleus, in monkeys.
In 22 crab-eating monkeys (Macaca irus), either lesions or HRP injections were made in the frontol parietal operculum and in the postcentral gyrus to observe their fiber connectionl with the posterior ventral nucleus (VP), suggesting that the ventromedial part of VPM is more intimately related to SII, and its lateral-most part to SI.
The nucleus of the solitary tract in the monkey: Projections to the thalamus and brain stem nuclei
The projections of the nucleus of the solitary tract were studied by autoradiographic anterograde fiber‐tracing and horseradish peroxidase (HRP) retrograde cell‐labeling and showed topographically organized bilateral projections to the ventrolateral medullary reticular formation which contains neurons of the ambiguus complex.
Cortical Representation of Taste in Man and Monkey
(1) The temporal lobe localization has found almost general acceptance and the insula theory of taste has found but few followers.
Some observations of the projection to VPMpc from the so-called 'frontal opercular pure taste area'.
The essential projection to VPMpc from the area located between the diagnonal sulcus and the arcuate sulcus in the buried cortex of the Sylvian fissure in monkeys was observed with the silver impregnation method of Nauta-Gygax, giving the anatomical basis of the existence of a 'frontal opercular pure taste area' not relating to the tactile or alimentary systems.
Cortical organization in gustation (Macaca mulatta).
The evidence for a cortical representation of gustation in primates is meagre and inconsistent and the evidence seems to vindicate Bornstein's rejection of the classical view which places the representation of taste in the temporal allocortex.
Areal differences in the laminar distribution of thalamic afferents in cortical fields of the insular, parietal and temporal regions of primates
A cytoarchitectonic parcellation has been made of the cortex of the insula and of the adjoining parts of the temporal and parietal lobes in rhesus and squirrel monkeys. In conjunction with this, the