Motor Activity, Speech
Conditions
Brief summary
These studies test the hypothesis that frontal areas of the brain participate in the cortical networks involved in the somotosensory processing that happens during speech motor learning.
Detailed description
This work aims to study the role of sensory systems in human motor learning and specifically addresses the involvement of somatosensory cortical networks in motor learning of speech. Previous studies in the literature have highlighted the plasticity of cortical sensory networks, notably the primary and secondary somatosensory cortex and the ventral premotor cortex, during motor learning tasks. The present project focuses on the somatosensory region with connections to the sensorimotor regions of the frontal and parietal cortex. We propose to use neuroimaging (fMRI), in order to verify which areas in the prefrontal cortex are part of the sensorimotor network used in the learning of speech motor tasks in humans. Subjects will be tested in the fMRI scanner while performing either a behavioral task in which the auditory feedback of their own speech is altered or while performing a vibrotactile discrimination task.
Interventions
BEHAVIORALSpeech adaptation
Sensorimotor adaptation in speech
BEHAVIORALVibrotactile Discrimination
Vibrotactile Discrimination
OTHERfMRI
fMRI measurement of brain activity
BEHAVIORALSpeech production
Speech production task
Sponsors
Laboratoire de Psychologie et NeuroCognition
GIPSA-LAB
McGill University
University Hospital, Grenoble
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* Right-handed subjects * Subjects fluent in French * Signed informed consent * Affiliation to or beneficiary of a Social Security scheme
Exclusion criteria
* Left-handed subjects * Criteria for contraindications to protocol fMRI scans * Existence of a severe general condition: cardiac, respiratory, hematological, renal, hepatic, cancerous. * Hearing, language (including dyslexia), neurological or psychiatric disorders. * Participation in other ongoing intervention research protocols with exclusionary period or within the previous week * Drug treatment likely to modulate brain activity: benzodiazepines, antidepressants, neuroleptics, lithium, etc. * Protected persons referred to in articles L1121 5 to L1121 8 of the French CSP: * Pregnant women, parturients, nursing mothers, * Persons deprived of liberty by a judicial or administrative decision, * Persons under psychiatric care, * Individuals admitted to a health or social institution for purposes other than research, * Minors, * Persons over the age of majority who are subject to a legal protection measure or who are unable to express their consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Motor Learning | Performance as measured at the end of learning (during the 1h30 scanner session) | Learning is assessed as percentage change in speech sounds (speech formant frequencies) relative to baseline. |
| Brain activity | 1h30 scanner session | Brain activity are measure by the BOLD signal during both task-based and resting-state blocks |
Countries
France
Outcome results
None listed