**In my opinion:** After having read this research study, in my understanding, the researchers found: * When people who stutter (PWS) do 'imagined speaking' (covert speaking inside their head), then PWS are not differently lateralized relative to non-stutterers. Both PWS and non-stutterers have equivalent levels of language lateralization across a range of tasks. * But when PWS speak out loud (overt speaking), then rightwards lateralization becomes more dominent. * Four reasons for rightwards overactivation: 1. inhibition 2. compensation (reorganisation of function to the right hemisphere) 3. error responses 4. statistical thresholding (giving the impression that there is no activity in one hemisphere because it is only visible sub-threshold) * Certain therapeutic interventions enhances leftwards activity The research concludes with: "*With our current datasets, we cannot disentangle possible causes of our finding that covert tasks were more strongly lateralized than overt ones since this factor is confounded with the measurement difference.*" **In my opinion:** So, the researchers found that covert tasks showed stronger lateralization compared to overt tasks. But, then they conclude with "*We don't know what the cause of this is*". However, didn't they already mention that the cause might be the 4 reasons (inhibition, compensation, error response, statistical thresholding)? **Are they implying that there must be more reasons?** What do you think?