PSY 350 Week 3 Quiz

Question 1

What term did Sir Charles Scott Sherrington introduce during his comprehensive studies of reflexes?

  neuron 

  synapse 

  contraction 

  reflex  

Question 2

The withdrawal reflex is so fast because it involves how many synapses between the sensory receptor and the motor neuron?

  1 (unisynaptic) 

  2 (polysynaptic) 

  3 (polysynaptic) 

  0 (nonsynaptic)  

Question 3

Disruption of function of the ________________leads to increased dopamine activity and Huntington’s disease.

  premotor cortex 

  basal ganglia 

  motor endplate 

  lumbar spinal cord  

Question 4

Why is rapid eye movement (REM) sleep also called “paradoxical sleep”?

  there is very little brain activity and the skeletal muscles are contracted 

  there is increased brain activity and the skeletal muscles are inactive 

  it is the type of sleep that is unnecessary for human health 

  there is increased awareness of sensory stimuli  

Question 5

What system sends sensory information from the limbic system to the cerebral cortex to create dreams?

  the basal ganglia 

  the premotor cortex 

  the raphe system 

  the thalamocortical system