Home › Speech and Language Problems in Children › NCT05283265
Neurophysiological Mechanisms of Language Comprehension
Who can join
Ages 18 and older · All sexes
Full eligibility criteria
Inclusion Criteria: * Age 18 and older * Undergoing standard of care stereo Electro Encephalogram (sEEG) or Electro-Corticogram (ECoG) monitoring * Able to competently perform control trials of the task Exclusion Criteria: * Age less than 18 years * Unable to competently perform control trials of the task
About the study
First, in a recording-only self-paced reading experiment, patients with epilepsy undergoing intracranial monitoring for clinical purposes will read or listen to sentences presented to them one word at time while the investigators simultaneously record neural activity through intracranial electrodes that are implanted for clinical purposes (see subject populations). At the end of the sentence, the subjects have to indicate how they comprehended the sentence by selecting which of several pictures matches the sentence they just read. Behavioral measures that the investigators record and analyze are their response times to advance to each next word in the sentence, and which picture they chose for each sentence. These behavioral measures are compared against the neural activity simultaneously recorded as they are made.
Then, in a later session, the same participants will participate in a task-related stimulation experiment. This follows the exact same design as the recording-only reading experiment, the only difference is that on some trials, at controlled moments during the sentence presentation intracranial electrical stimulation is delivered through adjacent intracranial electrode contacts. The investigators will examine the effect of this stimulation on the subjects comprehension of the sentences measured by their behavior, and on the simultaneously recorded neural activity.
What is being tested
- Sentence Type (behavioral)
- Direct brain stimulation (other)
Sponsor: University of Alabama at Birmingham · Participants: 153 · Started: Apr 8, 2022
Contact the study team
- Matthew Nelson, PhD · Phone: 2059346717
Official record on ClinicalTrials.gov — NCT05283265
Locations in the U.S.
| Alabama | The University of Alabama at Birmingham Hospital, Birmingham |
Conditions
From ClinicalTrials.gov, data retrieved Oct 2, 2026. Each study sets its own eligibility; the study team decides who can join.