Do kids with writing difficulties feel touch differently? new study investigates.

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria for specific learning disorder with impairment in written expression: * Diagnosis of specific learning disorder with impairment in written expression according to the DSM-5 diagnostic criteria * Age between 6 and 12 years * Clinically normal intellectual functioning * Voluntary agreement to participate in the study * Absence of any systemic disease * Right-hand dominance Inclusion Criteria for control: * Age between 6 and 12 years * Clinically normal intellectual functioning * Willingness to participate in the study on a voluntary basis * Absence of any systemic disease * Right-hand dominance Exclusion Criteria for specific learning disorder with impairment in written expression: * Presence of verbal or visual communication problems * History of perinatal complications or physical head trauma * Presence of psychiatric disorders other than specific learning disorder according to the DSM-5 diagnostic criteria * History of known chronic physical or neurological disease (such as cerebral palsy, diabetes, epilepsy, autoimmune disease, liver failure, or kidney failure) * Presence of substance or alcohol use disorder * Diagnosis of a genetic disorder * Previous surgery involving the hand region * Presence of infection and/or sensory deficit in the hand region Exclusion Criteria for control: * Presence of any psychiatric disorder according to the DSM-5 diagnostic criteria * Presence of verbal or visual communication problems * History of perinatal complications or physical head trauma * History of known chronic physical or neurological disease (such as cerebral palsy, diabetes, epilepsy, autoimmune disease, liver failure, or kidney failure) * Presence of substance or alcohol use disorder * Diagnosis of a genetic disorder * Previous surgery involving the hand region * Presence of infection and/or sensory deficit in the hand region