Biological Bases of Behavior 2009-2010
Chapters In Textbook:
Topic Summaries (if available):
Questions asked via email:
Q: I was studying the thalamus and didn't get the meaning of "brain's sensory switchboard." What is the switchboard trying to convey?
A: The thalamus "directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla" which means that information from touch, sound, etc. first passes through the thalamus and is then directed to the cerebral cortex. The cerebral cortex can then send a message through the thalamus to the cerebellum and medulla. It's like old fashioned telephones – there used to be an actual person who would connect your line to the person you wanted to call. If the touch receptors on my finger want to talk to my sensory cortex (in the cerebral cortex), the thalamus makes the connection, so to speak.
2009-2010 Test 2 MC Answers are attached below. :-)