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Effects of acute discontinuation of twice-daily methamphetamine on 5-CSRTT performance. For each group, the data labeled ‘Pre’ were collected in a normal daily session, after which methamphetamine was not administered. Data labeled ‘D1-PM’ were collected in the afternoon session the following day; 5.6 mg/kg RO5263397 was administered prior to this session in the right panel. See Figure 5, left for ordinates and abscissas.
