Experience strengthens existing synapses when
a. pre- and postsynaptic neurons are simultaneously active.
b. activity of the pre- and postsynaptic neurons are not synchronized.
c. activity in the postsynaptic neuron precedes activity in the presynaptic neuron.
d. the pre- and postsynaptic neurons use the same neurotransmitter substances.
Question 2
Alpha motor neurons receive input from
a. neurons in muscle spindles only.
b. neurons in muscle spindles and Golgi tendon organs.
c. spinal interneurons and neurons of the brainstem and motor cortex.
d. neurons in muscle spindles and Golgi tendon organs, neurons of the brainstem and motor cortex, and spinal interneurons.