Language Development Deficits and Early Interactive Music Intervention
Investigators compare effects of 6-month music versus circus group interventions on language development in infants and toddlers with or without familial risk for dyslexia (anticipated total N=200). Effects of intervention timing, dyslexia risk and genetics, and social-emotional factors on the intervention outcomes are investigated.
- EligibilityCriteria: Inclusion Criteria:  8-12 months old at start of intervention (recruited between 0-11 months) Born healthy and at term (gestational age at least 37 weeks and birth weight at least 2500 g) Normal hearing at birth (evoked oto-acoustic emissions conducted to newborns routinely at the hospital) At least one caregiver living with the child is native speaker of Finnish and speaks Finnish to the child Risk group: At least one biological parent has developmental dyslexia according to a recent (<5 years) diagnostic statement by a health care professional or according to a dyslexia test at study enrollment; symptoms have started in childhood  Exclusion Criteria:  Medication affecting the central nervous system Sensory deficits Serious health conditions No-risk group: Suspected dyslexia or developmental language disorder due to symptoms that have started in childhood in either of the biological parents; diagnosis of a developmental or language disorder (incl. dyslexia, developmental language disorder, attention-deficit/hyperactivity disorder ADHD, attention-deficit disorder ADD) or neurological disorder in either of the biological parents Risk group: Diagnosis of ADHD, ADD, or other not-language-related developmental disorder in either of the biological parents; in the dyslexic parent, brain trauma in childhood that may indicate a non-heritable cause for the reading deficit or individualized school curriculum that may indicate broader developmental deficits. - HealthyVolunteers: Accepts Healthy Volunteers - Gender: All - MinimumAge: 8 Months - MaximumAge: 12 Months - StdAgeList: Child