Abstract
Publisher Summary This chapter focuses on recent data on the laminar organization of intralaminar nuclei (IL)-cortical fibers and provides evidence of anatomical compartmentation within IL. The functional significance of the structural IL organization is discussed in relation to a hypothesis of IL relay activity. The IL presents a precise structural organization capable of highly specific integration of the different inputs. On physiological grounds, the main difference between IL and relay nuclei is their different roles in affecting cortical functions. IL is classically considered as the thalamic system capable of affecting cortical behavioral states while the relay nuclei are considered as the site for conveying specific information to the cortex. At least in terms of thalamocortical relationships, recent data are against the existence of the differences between IL and relay nuclei. Lesion and recording studies have shown that the rhythmic oscillatory activity during cortical synchronization is present throughout the thalamus under the conditional activity of the nucleus reticularis thalami. Although some recent evidence suggests possible differences among thalamic nuclei in affecting cortical synchronization, no indication exists supporting a functional segregation between IL and relay nuclei.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
