Subcortical projections from the temporal neocortex in Macaca mulatta

Whitlock, David G.; Nauta, Walle J. H.

doi:10.1002/cne.901060107

Cited by 480 publications

(97 citation statements)

References 28 publications

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“…Amygdaloid projections to the pulvinar as mentioned by Fox (1949) could not be identified in the present study. Projections apparently comparable to that observed by Fox have, however, been traced from a large extent of the temporal cortex (Whitlock & Nauta, 1956 Arnygdalo-cortical connexions. In several of the cases of amygdaloid lesion here studied axon degeneration could be traced in continuity from the lesion to (a) the gyrus subeallosus and rostral cingulate cortex, and (b) the rostral half of the inferior temporal gyrus.…”

Section: A Ventral Amygdalofugal Pathwayssupporting

confidence: 53%

“…The extremely dense arborization of the amygdaloid projection fibres in the nucleus suggests furthermore that fibres of amygdaloid origin furnish the major afferent supply to the medial element of the dorso-medial thalamic nucleus. It must, however, be noted that other, apparently less massive pathways to the pars medialis of the dorso-medial nucleus, have been traced from the septal region (Guillery (1959) in the cat; Valenstein & Nauta (1959) in the monkey), and from the inferior temporal gyrms (Whitlock & Nauta (1956) in the monkey). The temporal cortical projection to the dorsomedial nucleus, like that from the amygdala, follows the inferior thalamic peduncle, but it is unlikely that it was involved in the present experiments as it courses lateral to the amygdala in the white matter of the temporal lobe.…”

Section: A Ventral Amygdalofugal Pathwaysmentioning

confidence: 99%

“…As regards the fibres to the inferior temporal gyrus, there is little reason to suspect that their degeneration could have been caused by non-specific factors, for besides the uncus no part of the temporal lobe was actually touched during surgery. It would thus seem justified to accept the existence of a rather sparse and diffuse projection of the amygdaloid complex to the inferior temporal gyrus, a connexion which reciprocates an apparently somewhat more massive cortico-amygdaloid projection arising in the same general region of the temporal cortex (Whitlock & Nauta, 1956).…”

Section: A Ventral Amygdalofugal Pathwaysmentioning

confidence: 99%

See 2 more Smart Citations

Fibre Degeneration Following Lesions of the Amygdaloid Complex in the Monkey

Nauta

1993

Neuroanatomy

137

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Section: A Ventral Amygdalofugal Pathwayssupporting

confidence: 53%

Section: A Ventral Amygdalofugal Pathwaysmentioning

confidence: 99%

Section: A Ventral Amygdalofugal Pathwaysmentioning

confidence: 99%

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Fibre Degeneration Following Lesions of the Amygdaloid Complex in the Monkey

Nauta

1993

Neuroanatomy

137

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“…The amygdala has been shown to respond to acoustic stimulation with activity in neurons in the lateral amygdaloid nucleus (Bordi and LeDoux, 1992). The lateral amygdaloid nucleus is anatomically connected with sensory processing structures in the thalamus (LeDoux et al, 1985;Turner and Herkenham, 1991) and in the cortex (Whitlock and Nauta, 1956;Jones and Powell, 1970), and is therefore a plausible candidate for the emotional processing of sensory information (Weiskrantz, 1956;Geschwind, 1965). Neurons in the amygdaloid nucleus respond to (simple and broadband) auditory stimuli across a wide range of frequencies, with high sensitivity (e.g.…”

Section: Amygdalamentioning

confidence: 99%

Subcortical processing in auditory communication

2015

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a b s t r a c tThe voice is a rich source of information, which the human brain has evolved to decode and interpret. Empirical observations have shown that the human auditory system is especially sensitive to the human voice, and that activity within the voice-sensitive regions of the primary and secondary auditory cortex is modulated by the emotional quality of the vocal signal, and may therefore subserve, with frontal regions, the cognitive ability to correctly identify the speaker's affective state. So far, the network involved in the processing of vocal affect has been mainly characterised at the cortical level. However, anatomical and functional evidence suggests that acoustic information relevant to the affective quality of the auditory signal might be processed prior to the auditory cortex.Here we review the animal and human literature on the main subcortical structures along the auditory pathway, and propose a model whereby the distinction between different types of vocal affect in auditory communication begins at very early stages of auditory processing, and relies on the analysis of individual acoustic features of the sound signal. We further suggest that this early feature-based decoding occurs at a subcortical level along the ascending auditory pathway, and provides a preliminary coarse (but fast) characterisation of the affective quality of the auditory signal before the more refined (but slower) cortical processing is completed.

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“…Several investigators (e.g., Cragg, 1965; Van Hoesen, Pandya, & Butters, 1971;Whitlock & Nauta, 1956) have reported fibers from neocortex to entorhinal cortex; others have extended this path by tracing fibers from entorhinal cortex to hippocampus (e.g., Hjorth-Simonsen & Jeune, 1972;Raisman, Cowan, & Powell, 1965). In addition to these cortical-hippocampal pathways, reciprocal fibers connecting the limbic system and midbrain are well documented (Guillery, 1956;Nauta, 1956).…”

Section: Modelmentioning

confidence: 99%