What are intellectual and developmental disabilities? Intellectual disability is a disability characterized by significant limitations in both intellectual functioning and in adaptive behavior, which ...

Autism cases are surging in the New York-New Jersey metro area, mainly fueled by the diagnosis of autistic children who don't have intellectual disabilities, a new study reports. The percentage of ...

In partnership with the London Health Centre in Canada, the Greenwood Genetic Center launched a first of its kind clinical epigenetic test that will analyze gene expression. The goal with the test, ...

The US Supreme Court on Tuesday, December 10, heard oral argument in Hamm vs. Smith, a capital case that could reshape how courts evaluate intellectual disability under Atkins v. Virginia and its ...

Decades ago, the Supreme Court said inmates who are intellectually disabled can't be executed. Now, it weighs the use of IQ tests in close calls.

Is an intellectual disability a condition, or a number on an IQ test? Here's why an Alabama death penalty case at the Supreme ...