Learning or relearning speech needs precise mouth and face movements. These movements depend on brain networks that give sensory input and that send motor commands to the muscles.
In the study, participants heard their own speech changed through headphones and they adjusted how they spoke. The researchers used magnetic stimulation (TMS) to disrupt either the auditory area, the somatosensory area, or the motor area. When the sensory areas were disrupted, people had more trouble keeping the new speech changes one day later. Disrupting the motor area did not reduce memory. This result points to new ideas for speech rehabilitation and technology.
Difficult words
- precise — very exact and accurate with little error
- sensory — connected to the senses like hearing and touch
- motor — related to movement and to the muscles
- disrupt — to interrupt or break the normal actiondisrupted, Disrupting
- stimulation — an action that causes activity or a response
- rehabilitation — help to return to normal skills or health
- memory — ability to store and remember information
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever practised speaking with headphones? What did you do?
- What simple exercises could help someone relearn speech?
- Would you try technology to help speech practice? Why or why not?
