AP Psych Test Flashcards
Nature vs Nurture
The debate on how genetics (nature) and environment (nurture) influence behavior and development
Genetic predisposition
inherited traits that make an individual more likely to develop certain behaviors or disorders
Evolutionary perspective
certain behaviors and processes have benefited humans and those humans have been able to survive and reproduce and spread that trait
Eugenics
the controversial study of improving the genetic quality of the human population, often associated with unethical practices
Natural selection
individuals with advantageous traits are more likely to survive and pass it onto offspring
Central nervous system (CNS)
brain and spinal cord
Peripheral nervous system (PNS)
connects the CNS to the rest of the body
Somatic nervous systems
Controls voluntary movements and transmits sensory information to the CNS.
Autonomic Nervous System
Regulates involuntary bodily functions; divided into the sympathetic and parasympathetic nervous systems.
Sympathetic vs. Parasympathetic Nervous System
The sympathetic prepares the body for “fight or flight,” while the parasympathetic conserves energy and promotes “rest and digestion.”
Glial cells
cells in the nervous system that support, nourish, and protect neurons; they may also play a role in learning, thinking, and memory.
Neurons
a nerve cell; basic building block of the nervous system
Reflex Arc
pathway for a body’s reflex. Moves from sensory neurons to spinal chord
Sensory neurons
carry signals from the spinal cord to the CNS
Motor neurons
transmit signals from CNS to muscles or glands
Interneurons
connect messages from the CNS to the PNS
All-or-nothing principle
Neurons either fire completely or not at all, depending on reaching a certain threshold.
Selective Permeability
The ability of the neuron’s membrane to allow certain ions to pass while blocking others.