Adolescent idiopathic scoliosis (AIS) patients have been found to exhibit cortical asymmetry. This study aimed to examine the impact of conservative treatments on perceptual and cognitive asymmetry in the auditory system assessed by dichotic listening in AIS patients with thoracic major curves.

Background: Adolescent idiopathic scoliosis (AIS) patients have been found to exhibit cortical asymmetry. This study aimed to examine the impact of conservative treatments on perceptual and cognitive asymmetry in the auditory system assessed by dichotic listening in AIS patients with thoracic major curves. Method: This study involved 30 AIS patients and 21 healthy subjects. The intervention group used a Cheneau brace and performed 18 Schroth Best Practice (SBP) exercise sessions. Auditory lateralization was assessed using the Dichotic Listening Paradigm (DLP) in both groups before and after the intervention.

Inclusion Criteria for Intervention Group:

• Having been diagnosed with AIS,
• Being 10-16 years of age,
• Having a Cobb angle of between 20° and 50°
• Risser's sign of 0-3,
• Having right thoracic scoliosis,
• Being right-handed,
• Having received no previous treatment that may affect scoliosis,
• Having no chronic disease requiring the use of medication.

Inclusion Criteria for Intervention Group:

• Participants aged 10-16 years

Exclusion Criteria for both groups:

• Having previous spinal operations,
• Hearing loss, or the presence of other muscular, neurological, or rheumatic diseases.