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Input-output properties of neurons in the dorsal part of the nucleus reticularis paragigantocellularis and in the nucleus reticularis gigantocellularis in ralation to the cortically induced rhythmical jaw movement in the guinea pig
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nozaki, Shuichi Iriki, Atsushi Kurasawa, Ikufumi Nakamura, Yoshio |
| Copyright Year | 1985 |
| Abstract | The distribution, response properties and possible functional roles of masseteric-driven neurons (MDN) were studied by recording single neuronal activities and intracortical microstimulation of the cerebral cortex in the cat, lightly anesthetized with ketamine. A total of one handred and ninety eight MDNs were recorded in the posterior part of the coronal gyrus (PPA:posterior projection area) and the middle part of the coronal gyrus (MPA:middle projection area) and the anterior parts of the coronal and lateral sygmoid gyri (APA :anterior projection area). MDNs were mainly distributed in laminae II-III of area 3b of PPA, and in laminae IV-V of area 3a and 6a~ of MPA and APA. The majority of these neurons responded with spike potentials to stimu]ii with intensities less than half of the threshold intensity for jaw opening reflex. MDNs in PPA received cutaneous inputs only from contralateral buccal, mandibular regions; and proprioceptive inputs from the temporomandibular joint. On the other hand, those in MPA and APA received cutaneous inputs from biand contralateral perioral and intraoral regions, some from neck, and many of them received also inputs from periodontal membrane. Intracortical microstimulation in MPA and APA produced oro-facial movements such as jaw opening, tongue, whisker or perioral movement; while that in PPA did not have any motor effects on oro-facial regions. Therefore, it can be concluded that MDNs in PPA would be involved in perception of jaw position and its movement, while those in MIDA and APA may be involved in sensori-motor integration or control of movements in the orofacial regions. |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/0168-0102(85)90183-x |
| Alternate Webpage(s) | https://api.elsevier.com/content/article/pii/016801028590183X |
| Alternate Webpage(s) | https://www.sciencedirect.com/science/article/pii/016801028590183X?dgcid=api_sd_search-api-endpoint |
| Alternate Webpage(s) | https://doi.org/10.1016/0168-0102%2885%2990183-x |
| Volume Number | 3 |
| Journal | Neuroscience Research |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
