Chapter 2 Flashcards
What are one-dimensional models?
One-dimensional models explain behavior through a single cause, often ignoring other contributing factors.
What are multidimensional models?
Multidimensional models are interdisciplinary and integrative, recognizing that abnormal behavior arises from a ‘system’ of influences.
What role do biological factors play in multidimensional models?
Biological factors such as genetics, physiology, and neurobiology play a significant role in understanding behavior.
What is polygenetic contribution?
Genetic contributions are polygenetic, meaning they involve multiple genes, and account for less than 50% of psychopathology.
What are gene-environment interactions?
Gene-environment interactions are crucial, as seen in the diathesis-stress model and the reciprocal gene-environment model.
How do environmental influences affect behavior?
Environmental influences can override genetic predispositions, highlighting that genes are not the sole determinant of behavior.
What does neuroscience examine?
Neuroscience examines the role of the nervous system in behavior.
What are the two divisions of the nervous system?
The nervous system is divided into the central nervous system (brain and spinal cord) and the peripheral nervous system (somatic and autonomic branches).
How do neurons communicate?
Neurons communicate chemically via neurotransmitters.
What are the key brain structures?
Key brain structures include the hindbrain (medulla, pons, cerebellum), midbrain, and forebrain (cerebral cortex).
What are the lobes of the cerebral cortex?
The cerebral cortex is divided into lobes: frontal, parietal, occipital, and temporal.
What is the limbic system?
The limbic system, including the thalamus and hypothalamus, is vital for emotional regulation and behavior.
What does the peripheral nervous system include?
The peripheral nervous system includes the somatic branch (voluntary muscles) and autonomic branch (sympathetic and parasympathetic).
How does the endocrine system interact with the nervous system?
The endocrine system, involving hormones, interacts with the nervous system through the hypothalamic-pituitary-adrenalcortical axis (HYPAC axis).
What are some important neurotransmitters?
Neurotransmitters such as serotonin, GABA, norepinephrine, and dopamine play important roles in behavior.