a syndrome marked by a clinically significant disturbance in an individual's cognition, emotion regulation, or behavior
biomedical
the perspective that assumes diseases have physical causes, can be diagnosed based on symptoms, and that seeks treatment or cures in a hospital
attention-deficit/hyperactivity disorder (ADHD)
a disorder characterized by restlessness, inattentiveness, and impulsivity
DSM-5
Diagnostic and Statistical Manual of Mental Disorders (5th Edition); published by the APA in 2013, used to classify and diagnose psychological disorders
Diagnostic Criteria
in the DSM, the specific list of symptoms used to identify a particular disorder
Prevalence
in the DSM, notes and observations on how widespread a particular disorder, and how much more or less frequently it occurs in different populations
Development and Course
in the DSM, notes and observations on how and when a particular disorder tends to first present itself and change over time
Risk and Prognostic Factors
in the DSM, notes and observations on which circumstances and variables put one at greater risk of developing a particular disorder
Differential Diagnosis
in the DSM, notes on how to distinguish between a particular disorder and other similar or frequently-comorbid disorders
Comorbidity
the simultaneous presence of two disorders in a patient
insanity
a legal term indicating that, because of a mental disease or defect, a defendant was unable to appreciate the wrongfulness of their acts or to control their behavior
anxiety disorders
psychological disorders characterized by distressing, persistent anxiety and/or maladaptive behaviors that reduce anxiety
generalized anxiety disorder
an anxiety disorder characterized by excessive anxiety or worry that is difficult to control and the physical symptoms of constant autonomic nervous system arousal
panic disorder
an anxiety disorder marked by recurrent, unexpected panic attacks and persistent worry over future attacks
panic attack
an abrupt surge of intense fear or intense discomfort, characterized by several physical and mental symptoms
specific phobia
an anxiety disorder characterized by a a marked fear or anxiety about an object or situation
social anxiety disorder
an anxiety disorder characterized by a marked fear or anxiety about one or more social situations in which the individual is exposed to possible scrutiny by others; formerly called social phobia
agoraphobia
an anxiety disorder characterized by a marked fear or anxiety about situations in which an individual feels they might not be able to escape or help might not be available if something happens
OCD
a disorder characterized by the presence of recurrent and persistent thoughts that cause anxiety, repetitive behaviors aimed at easing anxiety, or both.
obsessions
in OCD, the recurrent and persistent thoughts that are intrusive, unwanted, and cause marked anxiety
compulsions
in OCD, the repetitive behaviors that an individual feels driven to perform to prevent or reduce anxiety
posttraumatic stress disorder (PTSD)
a disorder characterized intrusive symptoms related to the memory of a traumatic event; such as haunting memories, nightmares, flashbacks, and other mental and physiological symptoms
posttraumatic growth
positive psychological changes as a result of struggling with extremely challenging circumstances and life crises
mood disorders
psychological disorders characterized by emotional extremes
major depressive disorder
a mood disorder in which a person experiences two or more weeks with depressed mood and/or loss of interest or pleasure, among other symptoms
persistent depressive disorder
a mood disorder in which a person experiences a depressed mood for at least two years, among other symptoms
bipolar disorder
a mood disorder in which a person alternates between the hopelessness and lethargy of depression and the overexcited state of mania; formerly known as manic-depressive disorder
mania
a hyperactive, euphoric state
bipolar I
a bipolar disorder in which a person experiences very severe manic episodes, sometimes involving psychosis and requiring hospitalization
bipolar II
a bipolar disorder in which a person experiences hypomanic episodes, which are typically shorter and less severe than manic episodes
rumination
compulsive fretting; overthinking about our problems and their causes
schizophrenia
a psychological disorder characterized by delusions and hallucinations, among other positive and negative symptoms
psychosis
a state in which a person loses contact with reality, experiencing irrational ideas and distorted perceptions
delusions
false beliefs that are firmly maintained even when contradicted
hallucinations
false sensory experiences that occur in the absence of sensory stimulation
negative symptoms
symptoms of schizophrenia that are deficits in functioning, such as flattened affect, slowed speech, and reduced movement
positive symptoms
symptoms of schizophrenia that are excesses of in functioning, such as hallucinations, delusions, and disorganized speech
somatic symptom disorder
a psychological disorder characterized by physical symptoms that are distressing or disruptive (e.g. pain, nausea) but have no apparent physical cause
conversion disorder
also known as functional neurological symptom disorder; a psychological disorder characterized by a significant alteration of motor or sensory function (e.g. blindness, paralysis) with no apparent physical cause
illness anxiety disorder
a psychological disorder characterized by a preoccupation with having or acquiring a serious illness, but with few or no somatic symptoms; formerly called hypochondriasis