Stuttering that persists after the age of seven is classified as persistent stuttering. He has a thick accent consisting of lisping, stuttering and occasional squawks. Therefore, speech may be choppy but differs from stuttering. Woods overcame difficulties with stuttering as a boy. This is why there are errors like mispronunciation, stuttering, and unplanned pauses. Normal disfluency should be ruled out before diagnosing stuttering. Affected individuals may often have stuttering, difficulty with sound production, or a monotone voice. This can mean stuttering, lisps, etc. Examples include stuttering or problems producing particular sounds. CBT has been studied as an aid in the treatment of anxiety associated with stuttering. Auditory processing deficits have also been proposed as a cause of stuttering. Bullies also tend to target people with speech impediments of some sort (such as stuttering). For example, there is a certain connection between stuttering and speech errors. During childhood, he had a stuttering problem. Believing that fear aggravated stuttering, he suggested techniques to overcome this.