Figure 4.
Mean (±SEM) eyeblink conditioned response (CR) percentage for rat pups trained with microstimulation of the middle cerebellar peduncle (MCP) as a conditioned stimulus (CS) starting on post-natal day (P) 17 (dark bars) or 24 (striped bars) in Experiment 1 (top row) or Experiment 2 (bottom row). Data are from rats that had received paired MCP-US training at acquisition. CR percentages are shown for CS-alone trials during the terminal acquisition session (left side) and the first block of 10 trials for extinction session 1 (right side). * Denotes significant differences based on 2 (age) × 2 (phase of training) ANOVAs conducted for each experiment.