From: glen mccready To: Dead Beef <0xdeadbeef@substance.abuse.blackdown.org> Date: Tue, 25 Jul 1995 22:32:49 -0400



---------- Forwarded message ----------
Date: Mon Jul 24 18:21:08 1995
From: Keith Bostic <bostic@CS.Berkeley.EDU>
To: /dev/null@python.bostic.com
Subject: Which forebrain structure did the youngster remove bilaterally?

Forwarded-by: hsu@va.pubnix.com (Dave Hsu)

The Riddler homepage (http://www.riddler.com) presents puzzles on a daily
basis, with cash prizes for the winner.  Their game "Marlow's Crispy
Challenge" ordinarily presents clever little puzzles which are generally
solvable using commonly found references, maybe plus an encyclopedia and
some creativity.

Today's puzzle, reprinted below, raises the ante somewhat.

-dave

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
THE PUZZLE:

It doesn't take a brain surgeon to solve Marlow's Crispy Challenge.  At
least not most of the time.  You may wish to consult your friendly
neighborhood neurologist for some help with today's challenge.


1. Where is binaural audition first represented in the afferent pathway?
(two words)

2. A patient presents with bitemporal hemianopsia.  In what plane is the
lesion? (one word)

3. A thirty-two-year-old female presents with cocaine toxicity.  When
asked to point to her right arm with her left hand, she is unable to do
so; instead, she touches the arm of her doctor.  When asked simple
orienting questions, she responds with neologisms and paraphasias,
but speaks smoothly and effortlessly.  Which artery did she most likely
stroke? (four words, including "artery")

4. A patient presents to the ER after a car accident.  He is unconscious,
and the police say he banged his head against the dashboard.  When you
shine a penlight in his right eye, his right pupil constricts and he is
negative for the consensual response.  When a penlight is shined in his
left eye, he is positive for consensual response but his left eye remains
dilated. Which nerve has been lesioned? (three words, including
"nerve")

5. A patient presents complaining that the sounds she hears in her right
ear are excessively loud.  She also has decreased tone on the inferior
half of the right side of her face and an inability to flare her nostril.
What is the name of the syndrome from which she suffers? (two words)

6. A six-year-old epileptic suffers a tonic-clonic seizure that
originates in his right hand, progresses from the hand to his right
shoulder girdle, and continues down to his right pelvic girdle and
eventually to his right foot.  Where did the seizure originate? (three
words)

7. You live in a town where there are no veterinarians.  A concerned
monkey owner brings in his pet, complaining that the macaque has lost
his zest for life.  He says the macaque sits around all day with a flat
affect, and is not even afraid of the owner's pet cobra (which the
monkey previously feared).  Also, the monkey now expresses hypersexuality,
mounting everything animate or inanimate, and no longer uses his hands for
exploration, preferring oral investigation.  The owner mentions that his
ten-year-old son has been performing surgical "experiments" on the monkey.
Which forebrain structure did the youngster remove bilaterally? (one word)