Stuttering affects 5-10% of children, with 25% continuing into adulthood. It's a speech disorder that disrupts fluency and expression. Global prevalence exceeds 70 million people
Dysarthria is a speech disorder caused by muscle problems. It affects muscles in face, lips, tongue, throat, and breathing. Can be mild to severe and affect both children and adults. May occur with other speech problems like apraxia and aphasia
Speech is the use of human voice as medium for language. Spoken language combines vowel and consonant sounds to form words. Speech can be intentional (informing, declaring) or unintentional (social status)
Stuttering disrupts natural speech flow and can be developmental or chronic. Over 3 million Americans stutter, with 5% of children experiencing it. Males are four times more likely to have stuttering issues
Speech disorders disrupt normal communication and affect 11.5% of US population. Speech skills are crucial for social relationships and learning. Muteness is complete inability to speak
FOXP2 gene produces forkhead box P2 protein, a transcription factor. Protein binds to DNA through forkhead domain. Regulates hundreds of genes, including brain development. Essential for nerve cell growth and synaptic plasticity. Plays role in normal speech and language development