Hey, Lenore --

A stab at your question:

Warming the POAH (pre-optic area and anterior hypothalamus) causes
drowsiness, so the fatigue and sleepiness that comes from a warm room or
warm day is probably related to higher brain temps (if they directly
warm POAH, animals go to sleep -- as they do if it is electrically
stimulated).  

My problem is with the second statement: are we really more "alert" when
body temperature is higher?  I don't know so much about that.  People
with fevers are not more "alert," in a cortical sense.  It is true that
a sleeping brain is slightly cooler than an awake brain, but I'm not
sure that it follows that a warmer brain is more alert than a cooler
brain -- within limits.    

Did the text supply any data for the latter conclusion?  Reading Carlson
leads me to think that an awake brain is warmer than a sleeping brain,
not that a warm brain makes for an awake ("alert") person.  It sounds to
me that the causal arrow points from awake -> temperature in the "alert"
case, and from temperature -> sleepiness in the other.

But I am not sure, and think I have even confused myself.

m

-------
"Whatever power the United States Constitution 
envisions for the Executive in its exchanges with 
other nations or with enemy organizations in times 
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---
July 20,2006
US District Court for Northern California
 

> -----Original Message-----
> From: Frigo, Lenore [mailto:[EMAIL PROTECTED] 
> Sent: Tuesday, October 03, 2006 2:05 PM
> To: Teaching in the Psychological Sciences (TIPS)
> Subject: [tips] sleep and temperature
> 
> 
> 
> In an intro psych text, we get these two items. Same chapter, 
> different sections:
> a) The higher the body temperature, the more alert people 
> are; the lower the body temperature, the sleepier they are. 
> b) Warm room temperature can make a person sleepy.
> 
> Granted,  body temperature and room temperature are not the 
> same thing, but the two statements seem to be in conflict. 
> What's the missing piece to explain it all?!
> 
> 
> -Lenore Frigo
> Shasta College
> Redding, CA
> [EMAIL PROTECTED]
> 
> 
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