TY - JOUR AU - Conboy, Erin AU - Swanson, Judd AU - Tran, Khanh PY - 2013/01/11 TI - The neuropeptide DF 2 decreases the EPSP amplitude in the crayfish neuromuscular junction with a lessened effect at lower temperatures and with crayfish chronically exposed to lower temperatures JF - Pioneering Neuroscience; Vol 3 (2002) KW - N2 - The neuropeptide DRNFLRFamide (DF 2 ) has been shown to increase the amplitude of the excitatory post-synaptic potential (EPSP) in crayfish with a greater effect at lower temperatures. We studied the effect of DF 2 on the EPSP amplitude at the neuromuscular junction in crayfish when placed in a saline solution at 7-9 degrees Celsius and at 20-22 degrees Celsius. The crayfish were from two different populations; one was exposed to a chronically cold environment (7-9 degrees) and another was exposed to a chronically warm environment (20-22 degrees.) Our data suggests that the EPSP amplitude tends to decrease when exposed to DF 2 , however there is a less significant decrease when the crayfish is exposed to DF 2 at lower temperatures and in crayfish chronically exposed to low temperatures. UR - https://ojs.grinnell.edu/index.php/pnsj/article/view/169