Adjustment Disorders   5 studies
Affective Disorders, Psychotic   448 studies
Affective Symptoms   2 studies
Aggression   188 studies
Agoraphobia   12 studies
AIDS Dementia Complex   19 studies
Alcohol Drinking   105 studies
Alcohol Withdrawal Delirium   1 study
Alcohol-Related Disorders   313 studies
Alcoholic Intoxication   9 studies
Alcoholism   283 studies
Alzheimer Disease   492 studies
Amnesia   39 studies
Amphetamine-Related Disorders   21 studies
Anorexia Nervosa   48 studies
Antisocial Personality Disorder   6 studies
Anxiety Disorders   698 studies
Anxiety, Separation   13 studies
Aphasia, Primary Progressive   28 studies
Asperger Syndrome   20 studies
Attention Deficit and Disruptive Behavior Disorders   323 studies
Attention Deficit Disorder with Hyperactivity   304 studies
Auditory Perceptual Disorders   4 studies
Autistic Disorder   134 studies
Behavior, Addictive   140 studies
Behavioral Symptoms   1373 studies
Bipolar Disorder   473 studies
Borderline Personality Disorder   35 studies
Bulimia Nervosa   49 studies
Cataplexy   9 studies
Catatonia   2 studies
Child Behavior Disorders   4 studies
Child Development Disorders, Pervasive   137 studies
Cocaine-Related Disorders   234 studies
Cognition Disorders   807 studies
Combat Disorders   8 studies
Communication Disorders   87 studies
Compulsive Behavior   26 studies
Conduct Disorder   26 studies
Consciousness Disorders   39 studies
Conversion Disorder   5 studies
Creutzfeldt-Jakob Syndrome   2 studies
Delirium   810 studies
Delirium, Dementia, Amnestic, Cognitive Disorders   800 studies
Delusions   19 studies
Dementia   834 studies
Dementia, Vascular   24 studies
Depersonalization   2 studies
Depression   1477 studies
Depression, Postpartum   39 studies
Depressive Disorder   1463 studies
Depressive Disorder, Major   620 studies
Developmental Disabilities   156 studies
Disorders of Excessive Somnolence   19 studies
Dissociative Disorders   5 studies
Drinking Behavior   61 studies
Dyslexia   13 studies
Dyslexia, Acquired   1 study
Dyspareunia   12 studies
Dyssomnias   644 studies
Dysthymic Disorder   30 studies
Eating Disorders   116 studies
Encopresis   2 studies
Enuresis   9 studies
Erectile Dysfunction   152 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   36 studies
Hypochondriasis   8 studies
Hysteria   5 studies
Impulse Control Disorders   43 studies
Impulsive Behavior   22 studies
Jet Lag Syndrome   4 studies
Learning Disorders   17 studies
Lewy Body Disease   12 studies
Marijuana Abuse   106 studies
Marijuana Smoking   11 studies
Mental Disorders   6116 studies
Mental Disorders Diagnosed in Childhood   559 studies
Mental Fatigue   2 studies
Mental Retardation   114 studies
Mood Disorders   1538 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   96 studies
Opioid-Related Disorders   227 studies
Panic Disorder   81 studies
Paranoid Disorders   4 studies
Paraphilias   3 studies
Passive-Aggressive Personality Disorder   1 study
Pedophilia   2 studies
Personality Disorders   61 studies
Phobic Disorders   80 studies
Pick Disease of the Brain   28 studies
Psychoses, Substance-Induced   2 studies
Psychotic Disorders   1391 studies
Quality of Life   991 studies
Reactive Attachment Disorder   1 study
REM Sleep Behavior Disorder   2 studies
Restless Legs Syndrome   68 studies
Rett Syndrome   11 studies
Schizophrenia   1013 studies
Schizophrenia and Disorders with Psychotic Features   990 studies
Schizophrenia, Catatonic   1 study
Schizophrenia, Childhood   2 studies
Schizophrenia, Disorganized   1 study
Schizophrenia, Paranoid   14 studies
Schizotypal Personality Disorder   7 studies
Seasonal Affective Disorder   14 studies
Self Mutilation   2 studies
Self-Injurious Behavior   47 studies
Sexual Dysfunctions, Psychological   201 studies
Shared Paranoid Disorder   1 study
Sleep Deprivation   29 studies
Sleep Disorders   700 studies
Sleep Disorders, Circadian Rhythm   21 studies
Sleep Disorders, Intrinsic   554 studies
Sleep Initiation and Maintenance Disorders   193 studies
Sleep-Wake Transition Disorders   1 study
Smoking   535 studies
Somatoform Disorders   45 studies
Stress Disorders, Post-Traumatic   277 studies
Stress Disorders, Traumatic   280 studies
Stress Disorders, Traumatic, Acute   5 studies
Stress, Psychological   31 studies
Substance Abuse, Intravenous   9 studies
Substance Withdrawal Syndrome   24 studies
Substance-Related Disorders   1170 studies
Suicide   53 studies
Suicide, Assisted   1 study
Suicide, Attempted   21 studies
Tic Disorders   52 studies
Tobacco Use Disorder   189 studies
Tourette Syndrome   48 studies
Transsexualism   3 studies
Trichotillomania   9 studies
Vaginismus   2 studies