Coma Researcher Steven Laureys and His Colleagues Used FMRI to Reexamine

question 200

Multiple Choice

Coma researcher Steven Laureys and his colleagues used fMRI to reexamine 54 patients previously diagnosed as being in a persistent vegetative state,or brain dead.Patients were repeatedly asked to imagine swinging a tennis racquet or walking down a familiar street.Five of the patients showed clearly different brain activity to the two tasks despite being unable to communicate with doctors in any other way.These results suggest that not all patients are brain-dead,but instead some may have

• A) Broca's aphasia.
• B) spatial neglect.
• C) locked-in syndrome.
• D) neurogenic agnosia.

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Definitions:

Unconditioned Stimulus

A stimulus that naturally and automatically triggers a response without any need for prior learning or conditioning.

Unconditioned Response

An involuntary, inherent reaction to a stimulus, occurring without any learned or conditioned prior history.

Unconditioned Response

An automatic and natural reaction to a stimulus that does not require learning.

Increased Heartbeat

A condition where the heart rate speeds up, typically in response to exercise, stress, or excitement.