TY - JOUR
T1 - Learned changes in the rate of respiratory pumping in Aplysia fasciata in response to increases and decreases in seawater concentration
AU - Levy, M.
AU - Weller, A.
AU - Susswein, A. J.
PY - 1994/2
Y1 - 1994/2
N2 - In Aplysia fasciata, the sea hare, shock paired with moderate increases or decreases in the seawater concentration leads to pairing-specific increases in the respiratory pump rate in response to the same solutions an hour later. A common neural circuit underlies learned changes to increased and decreased seawater concentration, as shown by complete generalization of learning between these stimuli. Different neural circuitry controls learning after pairing a shock with pH 7 seawater, as shown by a lack of generalization of learning to this stimulus. Preexposure to strong changes in the seawater leads to sensitization of respiratory pumping. The hypothesis was tested that associative learning and sensitization arise from activation of common pathways. However, patterns of generalization of sensitization elicited by preexposure to altered seawaters differ from those produced by associative learning.
AB - In Aplysia fasciata, the sea hare, shock paired with moderate increases or decreases in the seawater concentration leads to pairing-specific increases in the respiratory pump rate in response to the same solutions an hour later. A common neural circuit underlies learned changes to increased and decreased seawater concentration, as shown by complete generalization of learning between these stimuli. Different neural circuitry controls learning after pairing a shock with pH 7 seawater, as shown by a lack of generalization of learning to this stimulus. Preexposure to strong changes in the seawater leads to sensitization of respiratory pumping. The hypothesis was tested that associative learning and sensitization arise from activation of common pathways. However, patterns of generalization of sensitization elicited by preexposure to altered seawaters differ from those produced by associative learning.
UR - http://www.scopus.com/inward/record.url?scp=0028331375&partnerID=8YFLogxK
U2 - 10.1037/0735-7044.108.1.161
DO - 10.1037/0735-7044.108.1.161
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C2 - 8192842
AN - SCOPUS:0028331375
SN - 0735-7044
VL - 108
SP - 161
EP - 170
JO - Behavioral Neuroscience
JF - Behavioral Neuroscience
IS - 1
ER -