INAH - INAH-2: twice as large in males, small cell bodies...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
INAH (Allen, Hines, Shryne, Gorski 1989) Interstitial Nuclei of the Anterior Hypothalamus (1-4) : referring to 4 cell groups in the PO-AHA (preoptic-anterior hypothalamic area) -Give pics of location Used 22 autopsied normal human brains (11 age-matched pairs), no known neurological disorders Large chronological age range: Males between age 5 and 81, females 4-81 Mostly white subjects, but two Hispanic males and one black male Selected 4 cell groups within hypothalamus that stained darkly with thionin: did not find clearly homologous areas to other species Show INAH 1 and 2 cells, 3 and 4 Only 2 and 3 exhibited stat. significant sexual dimorphism
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: INAH-2: twice as large in males, small cell bodies 3.7 times larger in females of child-bearing age than other females; in those 3 women it was of similar volume to males May respond to circulating hormones like known nuclei in canaries and gerbils INAH-3 2.8 times larger in males than females, large cell bodies Similar to SDN-POA of the rat in that it is between optic chiasm and anterior commisure, and has large cell bodies Purpose of the nuclei unknown: it is known that electrical stim to POA of monkeys increases male sexual bejavior, and lesions of POA decrease male reproductive behavior in the primate...
View Full Document

Ask a homework question - tutors are online