Psychological dysfunction within an individual associated with distress or impairment in functioning and a response that is not typical or culturally expected
4 D's of Psychological Disorder
Psychological Dysfunction
Distress or Impairment
Atypical or Not Culturally Expected (Deviance)
Dangerousness
Psychopathology
Scientific study of mental disorders
Clinical Psychology
Applied branch of psychology that seeks to understand, assess, and treat psychological conditions in a clinical setting
Abnormal Psychology
Branch of psychology that studies unusual patterns of behavior, emotions, and thought which may or may not indicate an underlying condition
Normal Behavior
One behavior that is like other people in the society
Criteria for determining Abnormal Behavior
Norm-violation
Statistical rarity
Personal Discomfort
Deviation
Maladaptiveness
Clinical Assessment
The systematic evaluation and measurement of psychological, biological, and social factors in an individual presenting with a possible psychological disorder
Diagnosis
Process of determining whether the particular problem afflicting the individual meets all criteria for a psychological disorder
One-Dimensional
Looking for a single cause
Multidimensional
Looking for a systemic cause
Genes
Long molecules of DNA at various locations on chromosomes, within cell nucleus
46 Chromosomes, 23 Pairs, 22 Pairs of Autosomes, 1 pair Sex Chromosomes
Phenotypes
Observable characteristics
Genotypes
Unique genetic makeup
Endophenotypes
Genetic mechanisms that ultimately contribute to the underlying problems causing the symptoms and difficulties experienced by people with psychological disorders
Basic Genetic Epidemiology
Statistical analysis of family, twin, and adoption studies; if the disorder can be inherited and how much is attributable to genetics
Advanced Genetic Epidemiology
Studies the factors that influence the disorder
Gene Finding
What gene influences the behavior
Molecular Genetics
Biological analysis of individual DNA samples; biological processes genes affect to produce symptoms of the disorder
Family Studies
Examine behavioral pattern or emotional trait in the context of the family
Proband
Family member with the trait singled out for study
Adoption Studies
Identify adoptees who have a particular behavioral pattern or psychological disorder and attempt to locate first-degree relatives who were raised in different family settings
Twin Studies
Usually conducted to identical twins because they share genetic makeup
Those people who reported more severe stressful life events and had at least one short allele of the 5-HTT gene were at greater risk of developing depression (Caspi et al., 2003) (serotonin-transporter gene)
Epigenetics
Factors other than inherited DNA sequence, such as new learning or stress, that alter the phenotypic expression of genes
Neuroscience
Study of the nervous system, especially the brain to understand behavior, emotions, and cognitive processes
Neurotransmitters
Glutamate
GABA
Serotonin
Dopamine
Epinephrine
Norepinephrine
Endorphins
Acetylcholine
Agonist
Effectively increase the activity of the neurotransmitters (Excitatory)
Antagonist
Decrease or block neurotransmitter (Inhibitory)
Inverse Agonists
Produces effects opposite to those produced by the neurotransmitters
Reuptake
Neurotransmitter is released, quickly broken down and brought back to the synaptic cleft
Brain Stem
Lower and more ancient part of the brain; essential for autonomic functioning such as breathing, heartbeat, etc.
Brain Stem Regions
Hindbrain
Cerebellum
Midbrain
Thalamus and Hypothalamus
Limbic System
Located around the edge of the center of the brain, regulates emotional experiences and expressions and, to some extent, our ability to learn and to control impulses
Limbic System Structures
Hippocampus
Cingulate Gyrus
Septum
Amygdala
Basal Ganglia
Base of the forebrain, includes caudate nucleus, damage involved changing our posture or twitching or shaking, related to Parkinson's Disease