where can I obtain a book titled: Methods of Psychophysiological Research OR
Psychophysiological Research Methods, edited by Clinton Brown, MD

Hi jcjack,

Good news! The book you are looking for is available (used, not new). 

Methods in Psychophysiology
By: Clinton C Brown
Publisher: Baltimore, Williams & Wilkins, 1967.

Here is one copy, but it's hard for me to pick the "best buy" for you
when I don't know your location or preferences concerning condition.

BROWN, CLINTON
METHODS IN PSYCHOPHYSIOLOGY
Baltimore Williams & Wilkins 1967. VERY GOOD. 
9 x 6 inches hard cover. first edition. Binding is cloth.
Bookseller Inventory #011146
Price: US$ 16.00 
Chandler & Reed Rare Books
Paul Muller
207 North Main St Sunderland MA 01375
chandlerbooks@comcast.net
413-665-8915
http://dogbert.abebooks.com/servlet/BookDetailsPL?bi=62916038

Search at the following websites for comparison shopping:
http://www.bookfinder.com
http://used.addall.com/
http://www.tomfolio.com
http://www.biblio.com
http://www.choosebooks.com
http://www.usedbookcentral.com
http://www.bibliophile.net
http://www.bookavenue.com
http://www.antiqbook.com
http://www.zshops.com
http://www.abebooks.com or http://www.abebooks.co.uk

Please let me know if you have any questions by posting a
clarification request before closing/rating my answer.

Thank you,
hummer

I searched at the OCLC (Online Computer Library Center) to try and
figure out the correct title. I found it by searching for "Brown" as
the author and "Methods" as the title. Once had the correct
information, I searched at book websites for "Methods in
Psychophysiology".