PMC4541259_01
Timeline and experimental design of the study.
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F1
The participant was administered a set of probe tasks to assess word retrieval at five testing points during the study on an untrained set of sentence-embedded nouns and verbs (see Figure 1) that consisted of a series of colored pictures that represent transitive verbs in a sentence context (e.g., "He makes the bed"). See assessment timeline, Figure 1. The experimental design of the study (see Figure 1) shows that the participant underwent two treatment blocks (sham tDCS followed by a-tDCS), each lasting 10 consecutive sessions with a 2-week washout period between blocks.
One iteration of the experimental therapy protocol.
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F2
The tDCS was then turned off and the behavioral intervention continued for the remainder of the hour (see Figure 2).