(~10 minutes)

Auditory Word-Picture Matching

This test evaluates the mapping from input phonological word-forms to lexical semantics as well as the integrity of the semantic store (Pillay et al., 2014a), emphasizing the ability to discriminate between similar concepts. Items are drawn from the same superordinate categories as in the picture naming test. Accuracy tends to be high on this task, thus response time is used as a secondary variable of interest for detecting category effects (Pillay et al., 2014b).

Materials:

• 80 digitally recorded natural utterances of concrete object names, including 30 living things, 30 nonmusical artifacts, 12 body parts, and 8 musical instruments
• 320 digital color photographs depicting the 80 target concepts and 3 items semantically related to each

Procedure (see figure):

• the name of an object is presented auditorily, with simultaneous presentation of four object pictures
• patient attempts to select the picture that matches the name
• foil items are close semantic neighbors of the target (e.g., knife, spoon, plate for the target item fork)

Data analysis:

• %correct overall and for each category, chi-square tests for category effects
• mean response time by category, ANCOVA for category effects