The phrase "activation of speech" is correct and usable in written English.
It can be used in contexts related to communication, linguistics, or cognitive processes involving speech production.
Example: "The activation of speech in the brain is a complex process that involves multiple regions working together."
Alternatives: "initiation of speech" or "triggering of speech".
Here we show that relative to young adults, older adults show higher activation of frontal speech motor areas as measured by functional MRI during a syllable identification task at varying signal-to-noise ratios.
Auditory narratives of familiar events, read in a familiar voice, led to activation of language centers associated with the recognition of speech.
Individuals in the study by Aplin [ 26] used a multi-channel electrode; yet the patterns of neural activation for speech with this implant would be relatively more coarse in spectral and temporal representation as compared to today's cochlear implant technology.
Speech-selective regions related to informational or acoustical content were defined as the set of regions showing more activation for speech than music in violinists and in actors.
To improve the performance of the speech recognizer, most devices featuring speech control require user-driven activation and deactivation of speech input by touch.
It might be beneficial to not simply discard all noise exemplars activations but rather to include these, along with the activations of the speech exemplars, in a procedure that learns the mapping from activations to state posteriors that optimizes recognition performance.
The focus of this analysis was on within group differences in activation for speech output tasks (naming and reading) and semantic matching tasks (on pictures and words).
Previous neuroimaging studies have consistently reported bilateral activation to speech stimuli in the superior temporal gyrus (STG) and have identified an anteroventral stream of speech processing along the superior temporal sulcus (STS).
Third, we looked for effects of "performing arts training"; in such regions, violinists should show more activation for music than speech, whereas actors should show more activation for speech than for music.
