thălˈəməs, mass of nerve cells centrally located in the brain just below the cerebrum and resembling a large egg in size and shape. The thalamus is a routing station for all incoming sensory impulses except those of smell, transmitting them to higher (cerebral) nerve centers. In addition, it connects various brain centers with others. Thus the thalamus is a major integrative complex, enabling sensory stimuli to evoke appropriate physical reactions as well as to affect emotions. With the hypothalamus, the thalamus establishes levels of sleep and wakefulness. It is also vital to the neural feedback system controlling brain wave rhythms.
Questia, a part of Gale, Cengage Learning. www.questia.com
Publication Information: Encyclopedia Article Title: Thalamus. Encyclopedia Title: The Columbia Encyclopedia, Sixth Edition. Publisher: Columbia University Press. Place of Publication: New York. Publication Year: 2004.
Add a Shared Note
Shared Notes are comments made by Questia users on books,
book pages, or articles that inform other users and enhance
the Questia research community.
This feature allows you to create and manage separate folders for your different research projects. To view markups for a different project, make that project your current project.
This feature allows you to save a link to the publication you are reading or view all the publications you have put on your bookshelf.
This feature allows you to save a link to the page you are reading, which you can later return to from Projects.
This feature allows you to highlight words or phrases on the publication page you are reading.
This feature allows you to save a note you write on the publication page you are reading.
This feature allows you to create a citation to the page you are reading that you can paste into your paper. Highlight a passage to include that passage as a quotation.
This feature allows you to save a reference to a publication you are reading for your bibliography or generate a bibliography you can paste into your paper.
This feature allows you to print the page you are reading,
including your notes or highlights (IE users must have "print background colors and image" setting selected.)
This feature allows you to look up words in encyclopedia.
Questia's powerful research tools allow you to highlight, take notes, bookmark and even create instant citations and bibliographies. To use these features and save hours of work, you must create a Questia account.
Need a Questia account? Sign up for a FREE trial now. Save time, stress and hassle, and get better grades with trusted, online research.