Chapter 2: An integrative approach to psychopathology Flashcards
Multidimensional Integrative Approach
Approach to the study of psychopathology that holds psychologocal disorders are always the products of multiple interacting causal factors
- systemic causality that contributes to the developement of ones psychopathology
- abnormal behavior must be considered within the larger context of multipal influences
- interdisciplinary and intergrative
- draws upon information from several sources (i.e. biology, behavior, cognitive, emotional, social, and cultural environment)
one-dimensional model
psychopathology is caused by a single cause is to accept a linear model
genes
long deoxyribonucleic acid (DNA) molecule, the basic physical unit of heredity that appears as a location on a chromosome.
Nature Of Genes
- deoxyribonucleic acid (DNA)- the double helix
- 23 pairs of chromosomes
- dominant-only 1 (gene for trait to be expressed)
- recessive genes- requires paired with another recessive gene for trait to be expressed)
- development and behavior is often polygenetic (influence by many genes)
polygenetic
influence by many genes
genome
an individual’s complete set of genes
dominant gene
is one pair of genes that strongly influences a particular trait, and we only need one of them to determine a trait
recessive gene
must be paired with another (recessive) gene to determine a trait
quantitative genetics
sums up all the tiny effects across many genes without telling us which genes are responsible for which effects
diathesis-stress model
hypothesis that both an inherited tendency (a vulnerability) and specific stressful conditions are required to produce a disorder
- individuals inherit tendencies to express certain traits or behavior, which may be activated under condition of extreme stress
- diathesis
- stress-life events
- greater the underlying vulnerability, the less stress necessary to trigger a disorder
diathesis
a condition that makes someone susceptible to developing a disorder
vulnerability
susceptibility or tendency to develop a disorder
reciprocal gene-environment model
hypothesis that people with a genetic predisposition for a disorder may also have a genetic tendency to create environmental risk factors that promote the disorder
- genetic endowment may increase probability of individual experience stressful life events (i.e. depression, impulsivity)
- people seek other difficult relationships or circumstances that lead to depression
- environmental influences may override genetics
- they make choices that put them in the perpetual state of the victim
epigenetics
the study of factors other than inherited DNA sequence, such as new learning or stress, that alter the pheotypic expression of genes
neuroscience
study of the nervous system and its role in behavior, thoughts, and emotions.
affect
Conscious, subjective aspect of an emotion that accompanies an action at a given time
Agonist
In neuro science, a chemical substance that effectively increases the activity of a neurotransmitter by imitating its effects