The goal of this clinical trial is to learn whether healthy volunteers are more successful at understanding people with aphasia if they have first viewed an aphasia identification (ID) card. The main questions this study aims to answer are:
* Does viewing an aphasia ID card improve healthy volunteers' understanding of the language errors made by people with aphasia? * Does viewing an aphasia ID card improve healthy volunteers' understanding of people with aphasia who make long pauses in their speech?
Researchers will compare aphasia ID cards to a control condition (no ID card) to see whether aphasia ID cards improve healthy volunteers' understanding.
Healthy volunteers will visit the study site for a single session (about 2 hours long). During the session they will:
* Complete brief tests of their vision, hearing and thinking * Listen to sentences produced by a speaker with aphasia while their eye movements are recorded * Complete a survey about the experience of listening to the speaker with aphasia
Adult age 18-59
Currently employed as a service worker
Understand spoken and written English well
High school diploma or equivalency
Language disorder
Hearing impairment
Intellectual disability
History of acquired neurological disorder (e.g., stroke or moderate/severe brain injury)
Parallel
Aphasia identification (ID) card
BehavioralParticipants will view an aphasia ID card for a speaker with aphasia. The card will disclose the speaker's aphasia, define aphasia, and request time to communicate.
Comprehension accuracy for sentences with long pauses in the Service Request Comprehension Task
Percent correct mouse-click responses on the Service Request Comprehension Task for sentences with long pauses. The Service Request Comprehension Task measures participants' comprehension and processing of language produced by a speaker with aphasia.
Comprehension accuracy for sentences with paraphasias in the Service Request Comprehension Task
Percent correct mouse-click responses on the Service Request Comprehension Task for sentences with paraphasias (word-retrieval errors). The Service Request Comprehension Task measures participants' comprehension and processing of language produced by a speaker with aphasia.
Visual attention during long pauses in the Service Request Comprehension Task
Mean proportion of time in which the participant gazes at task-relevant pictures during long pauses, indicating attention to task. The Service Request Comprehension Task measures participants' comprehension and processing of language produced by a speaker with aphasia.
Linguistic integration of words immediately following long pauses in the Service Request Comprehension Task
Mean proportion of time in which the participant gazes at the target picture during words immediately following long pauses, indicating linguistic integration of those words. The Service Request Comprehension Task measures participants' comprehension and processing of language produced by a speaker with aphasia.
Implicit repair of paraphasias in the Service Request Comprehension Task
Mean proportion of time in which the participant gazes at the target picture in the 1000 ms following paraphasias (word-retrieval errors), indicating implicit repair of the speaker's errors. The Service Request Comprehension Task measures participants' comprehension and processing of language produced by a speaker with aphasia.
Rating of own patience on the Attitude Survey
Rating scale, 0-100 scale with question "When listening to the speaker, I felt \_\_\_\_\_", with endpoints of "impatient" on the zero side and "patient" on the 100 side. Higher scores mean a better outcome. The Attitude Survey measures participants' knowledge, beliefs, and emotions relating to listening to a speaker with aphasia.
Click on the lead sponsor to view all of their trials.
University of Massachusetts, Amherst
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
Collaborator
