Figure 2.

Methods of studying inner speech in aphasia. This figure is a conceptual representation of the mental processes required for the various approaches and the potential biases inherent to each approach. Objective approaches involve asking participants to make phonological judgments (e.g., rhymes, homophones) on either written words (left) or pictures (right). Subjective approaches involve asking participants to provide self-reports of success during a silent picture-naming task. Interview-based methods are not directly represented in the diagram but are subject to the same potential biases as other subjective approaches.