1. Which statement about long term synaptic plasticity is false?
A. the tracking of long term changes in synaptic efficacy is difficult in mammalian systems because of the complexity of mammalian brains
B. Gill withdrawl behavior in aplysia can be altered for days or weeks by means of repeated pairings of shocks and touch
C. associative learning in the aplysia gill withdrawal reflex is relatively independent of the timing or the order in which different stimuli are applied
D. The gill withdrawal reflex in Aplysia can be enhanced by pairing a noxious stimulus with a mild touch
E. the efficacy of transmission at many synapses depend on their history of synaptic activity