Adjustment Disorders   7 studies
Affective Disorders, Psychotic   481 studies
Affective Symptoms   3 studies
Aggression   204 studies
Agoraphobia   12 studies
AIDS Dementia Complex   20 studies
Alcohol Drinking   114 studies
Alcohol Withdrawal Delirium   1 study
Alcohol-Related Disorders   339 studies
Alcoholic Intoxication   10 studies
Alcoholism   306 studies
Alzheimer Disease   536 studies
Amnesia   42 studies
Amphetamine-Related Disorders   24 studies
Anorexia Nervosa   50 studies
Antisocial Personality Disorder   6 studies
Anxiety Disorders   746 studies
Anxiety, Separation   13 studies
Aphasia, Primary Progressive   29 studies
Asperger Syndrome   22 studies
Attention Deficit and Disruptive Behavior Disorders   347 studies
Attention Deficit Disorder with Hyperactivity   329 studies
Auditory Perceptual Disorders   4 studies
Autistic Disorder   146 studies
Behavior, Addictive   154 studies
Behavioral Symptoms   1483 studies
Bipolar Disorder   506 studies
Borderline Personality Disorder   37 studies
Bulimia Nervosa   53 studies
Cataplexy   9 studies
Catatonia   2 studies
Child Behavior Disorders   4 studies
Child Development Disorders, Pervasive   149 studies
Cocaine-Related Disorders   239 studies
Cognition Disorders   882 studies
Combat Disorders   11 studies
Communication Disorders   94 studies
Compulsive Behavior   28 studies
Conduct Disorder   26 studies
Consciousness Disorders   40 studies
Conversion Disorder   6 studies
Creutzfeldt-Jakob Syndrome   2 studies
Delirium   885 studies
Delirium, Dementia, Amnestic, Cognitive Disorders   875 studies
Delusions   19 studies
Dementia   909 studies
Dementia, Vascular   27 studies
Depersonalization   2 studies
Depression   1603 studies
Depression, Postpartum   40 studies
Depressive Disorder   1585 studies
Depressive Disorder, Major   665 studies
Developmental Disabilities   170 studies
Disorders of Excessive Somnolence   19 studies
Dissociative Disorders   6 studies
Drinking Behavior   64 studies
Dyslexia   14 studies
Dyslexia, Acquired   2 studies
Dyspareunia   12 studies
Dyssomnias   695 studies
Dysthymic Disorder   33 studies
Eating Disorders   123 studies
Encopresis   2 studies
Enuresis   9 studies
Erectile Dysfunction   167 studies
Feeding and Eating Disorders of Childhood   4 studies
Firesetting Behavior   1 study
Food Habits   5 studies
Gambling   29 studies
Heroin Dependence   53 studies
Huntington Disease   42 studies
Hypochondriasis   11 studies
Hysteria   6 studies
Impulse Control Disorders   45 studies
Impulsive Behavior   24 studies
Jet Lag Syndrome   4 studies
Learning Disorders   18 studies
Lewy Body Disease   14 studies
Marijuana Abuse   115 studies
Marijuana Smoking   12 studies
Mental Disorders   6536 studies
Mental Disorders Diagnosed in Childhood   601 studies
Mental Fatigue   2 studies
Mental Retardation   130 studies
Mood Disorders   1652 studies
Morphine Dependence   2 studies
Motor Skills Disorders   1 study
Mutism   3 studies
Narcolepsy   18 studies
Neonatal Abstinence Syndrome   7 studies
Neurocirculatory Asthenia   18 studies
Neurotic Disorders   6 studies
Nocturnal Enuresis   9 studies
Obsessive Behavior   1 study
Obsessive-Compulsive Disorder   101 studies
Opioid-Related Disorders   231 studies
Panic Disorder   81 studies
Paranoid Disorders   4 studies
Paraphilias   3 studies
Passive-Aggressive Personality Disorder   1 study
Pedophilia   2 studies
Personality Disorders   65 studies
Phobic Disorders   85 studies
Pick Disease of the Brain   29 studies
Psychoses, Substance-Induced   2 studies
Psychotic Disorders   1474 studies
Quality of Life   1072 studies
Reactive Attachment Disorder   1 study
REM Sleep Behavior Disorder   2 studies
Restless Legs Syndrome   72 studies
Rett Syndrome   12 studies
Schizophrenia   1069 studies
Schizophrenia and Disorders with Psychotic Features   1046 studies
Schizophrenia, Catatonic   1 study
Schizophrenia, Childhood   2 studies
Schizophrenia, Disorganized   1 study
Schizophrenia, Paranoid   13 studies
Schizotypal Personality Disorder   7 studies
Seasonal Affective Disorder   14 studies
Self Mutilation   3 studies
Self-Injurious Behavior   48 studies
Sexual Dysfunctions, Psychological   216 studies
Shared Paranoid Disorder   1 study
Sleep Deprivation   31 studies
Sleep Disorders   757 studies
Sleep Disorders, Circadian Rhythm   21 studies
Sleep Disorders, Intrinsic   598 studies
Sleep Initiation and Maintenance Disorders   205 studies
Sleep-Wake Transition Disorders   1 study
Smoking   583 studies
Somatoform Disorders   50 studies
Stress Disorders, Post-Traumatic   305 studies
Stress Disorders, Traumatic   309 studies
Stress Disorders, Traumatic, Acute   6 studies
Stress, Psychological   31 studies
Substance Abuse, Intravenous   10 studies
Substance Withdrawal Syndrome   24 studies
Substance-Related Disorders   1231 studies
Suicide   55 studies
Suicide, Assisted   1 study
Suicide, Attempted   21 studies
Tic Disorders   53 studies
Tobacco Use Disorder   198 studies
Tourette Syndrome   49 studies
Transsexualism   3 studies
Trichotillomania   10 studies
Vaginismus   2 studies