Figure 1. Time-effect curves for immobility (top), hot-plate response latency (middle), and percentage of animals displaying touch-evoked agitation (TEA)(bottom) after intrathecal delivery of L-alpha- phosphatidylcholine of egg yolk (L-EPC: 1,000 mg), L-dipalmitidyl phosphatidylcholine (L-DPPC: 1,000 mg), or D-DPPC (1,000 mg).