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Figure 4 | BMC Neuroscience

Figure 4

From: Effects of the N-methyl-D-Aspartate receptor antagonist dextromethorphan on vibrotactile adaptation

Figure 4

Schematic of the protocol used for amplitude discrimination with dual-site adaptation. During the adapting interval (A), two adapting stimuli, always of different amplitude, were delivered simultaneously to the skin, followed by a 1 sec ISI. During the test interval (T), a pair of identical test stimuli was delivered simultaneously to the same two skin sites. The subject was queried to select in each trial the skin site that received the most intense test stimulus. A correct response was registered when the subject chose the test stimulus that was delivered to the same location as the adapting stimulus of lower amplitude.

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