an illness of the mind that can affect the thoughts, feelings, and behaviors of a person, preventing him or her from leading a happy, healthful, and productive life
neurocognitive disorderspsychopathologies due to various forms of damage to the nervous system not arising until adulthoodAlzheimer's diseasea progressive and irreversible brain disorder characterized by gradual deterioration of memory, reasoning, language, and, finally, physical functioningpsychological traumaa psychological injury or shock, such as that caused by violence, abuse, neglect, separation, and so forthstress-vulnerability modelA model that attributes mental illness to a combination of environmental stress and inherited susceptibilitypsychosisa withdrawal from reality marked by hallucinations and delusions, disturbed thoughts and emotions, and personality disorganizationschizophrenia spectrum and other psychotic disorderssevere mental disorders characterized by delusions, hallucinations, distributed thought and/or speech, distributed motor behaviour, and/or retreat from realitydelusional disordera psychosis marked by severe delusions of grandeur, jealousy, persecution, or similar preoccupationsparanoid psychosisa delusional disorder centered especially on delusions of persecutionSchizophreniasevere disorder of thought and emotion associated with a loss of contact with realityparanoiasymptom marked by a preoccupation with delusions related to a single theme, especially grandeur or persecutioncatatoniadisorder of movement involving immobility or excited agitationdepressive disordersClass of disorders including major depression, dysthymic disorders, and substance induced depression that are characterized by persistent depressionpersistent depressive disorderModerate depression that persists for two years or moremajor depressive disorderA mood disorder in which a person experiences, in the absence of drugs or a medical condition, two or more weeks of significantly depressed moods, feelings of worthlessness, and diminished interest or pleasure in most activities.bipolar and related disordersmood disorders characterized by alternating periods of mania and depressionmanic episodePeriod of abnormally elevated or irritable mood that may include inflated self-esteem, decreased need for sleep, pressured speech, flight of ideas, agitation, or self-destructive behavior.cyclothymic disordermoderate manic and depressive behavior that persists for 2 years or morebipolar 1 disordera mood disorder in which a person has episodes of mania and also periods of deep depressionBipolar II Disordera mood disorder in which a person is mostly depressed and also periods of deep depressionendogenous (in depression)depression that appears to be produced from within (perhaps by chemical imbalances in the brain), rather than as a reaction to life eventspostpartum depressiona new mother's feelings of inadequacy and sadness in the days and weeks after giving birthSeasonal affective disorderdepression that involves recurrent depressive episodes in a seasonal patternPhotothereapya treatment for SAD that involves exposure to bright, full spectrum lightanxiety disordersA class of disorders marked by feelings of excessive apprehension and anxiety.generalized anxiety disorderan anxiety disorder in which a person is continually tense, apprehensive, and in a state of autonomic nervous system arousalpanic disorderchronic state of anxiety, with brief moments of sudden, intense unexpected panicagoraphobiaAn abnormal fear of open or public placessocial phobiaa disorder that involves an irrational fear of being publicly humiliated or embarrassedspecific phobiafear of objects or specific situations or eventsAnxiety reduction hypothesisexplains the self-defeating nature of avoidance responses as a result of the reinforcing effects of relief from anxietyobsessive-compulsive disorderextreme preoccupation with certain thoughts and compulsive performance of certain behaviorshoarding disorderExcessively collecting various thingstrauma and stressor related disordersa group of mental disorders distinguished by their origin in stressful eventsadjustment disorderan emotional disturbance caused by ongoing stressors within the range of common experienceacute stress disordera psychological disturbance lasting up to one month following stresses that would produce anxiety in anyone who experienced thempost-traumatic stress disorderan anxiety disorder characterized by haunting memories, nightmares, social withdrawal, jumpy anxiety, and/or insomnia that lingers for four weeks or more after a traumatic experiencedissociative disordersdisorders in which conscious awareness becomes separated (dissociated) from previous memories, thoughts, and feelingsdissociative amnesiaDissociative disorder characterized by the sudden and extensive inability to recall important personal information, usually of a traumatic or stressful nature.somatic symptom disorderpsychological disorder in which the symptoms take a somatic (bodily) form without apparent physical causefactitious identity disorderCondition in which a person acts as if he or she has a physical or mental illness when he or she is not really sick.dissociative fuguedisorder in which one travels away from home and is unable to remember details of his past, including often his identitysomatic syptom disorderexhibiting the chacteristics of a disease or injury without an identifiable physical causefacitious disorderfalsifies physical or psychological signs or symptoms.conversion disordera disorder in which a person experiences very specific genuine physical symptoms for which no physiological basis can be foundpersonality disorderslong-standing, inflexible ways of behaving that create a variety of problemsantisocial personality disorderA personality disorder in which the person (usually a man) exhibits a lack of conscience for wrongdoing, even toward friends and family members. May be aggressive and ruthless or a clever con artist.
