Latent inhibition (being easily distracted) is correlated with IQ some mental illness. Depression is another one. On the other hand, other mental illnesses cou

Latent inhibition (being easily distracted) is correlated with IQ some mental illness. Depression is another one. On the other hand, other mental illnesses could be negatively correlated either because they inhibit high IQ (too crazy to do the test / go to school), or IQ helps deal with them (outsmarting the illness), or they don't get diagnosed because the person is otherwise able to cope with life (to smart to be diagnosed).