Unit One Part One Vocab Flashcards
The scientific study of the links between biological (genetic, neural, hormonal) and psychological
Biological psychology
This perspective explores how natural selection affects the expression of behavior and mental processes to increase survival
Evolutionary Perspective
________ or ________, refers to genetic charateristics that influence physical, behavorial, and mental traits and processes
Nature or Heredity
________ or ________ refers to the external factors that one experiences, such as family interactions or education
Nuture or enviroment
The principle that inherited traits better enable an orgainism to survive and reproduce in a particular enviroment will most likely be passed on to succeeding generations (Best genes)
Natural Selection
Seeks to eradicate genetic defects and improve the genetic makeup of populations through selective human breeding
Think Hitler
Eugenics
Reseach utilizing twins. Often involve comparing characteristics of identical and fraternal twins
Twin Studies
CNS or ________ is primary involved in mental activites and in coordinating and intergrading incoming sensory messages and outgoing motor messages
Central Nervous System
PNS or ________ is the portion of the nervous system that lies outisde the brain and spinal cord- that is, all parts outide the central nervous system. Sensory and motor neurons that connect to CNS
Peripheral Nervous System
The part of the peripheral nervous system that controls the glands and the muscles of the internal organs. Self regulated
EX: heartbeat
Autonomic Nervous System
The division of the peripheral nervous system that control the bosy’s skeletal muscles.Also called the skeletal nervous system. Movement/Position
Aware of
EX: Running, writing notes etc
Somatic Nervous System
Divison of the autonomic nervous system that arouses the body; mobilizing its energy
Fight or flight
Sympathetic Nervous System
Division of the autonomic nervous system that calms the body; Conserving energy
Rest and Digest
Parasympathetic Nervous System
A nerve cell; the basic building block of the nervous system
Neuron
Cells in the nervous system that support, nourish and protect neurons; they also play a role in learning, thinking and memory
Glial Cells
A neural circuit that is involoved in a reflex. It consists of an afferent or sensory, neuron that conducts nerve impulses.
Reflex Arc
Neurons that carry incoming information form the body’s tissues and sensory receptors to the brain and spinal cord
Sensory (afferent) Neurons
Neurons that carry outgoing information from the brain and spinal cord to the muscles and glands
Motor (Efferent) Neurons
Neurons within the brain and spinal cord; they communicate internally and process information between the sensory inputs and motor outputs
Interneurons
The principle that the amplitude of the action potenial in a neuron is independent of the magnitude of the stimulus. Thus, all stimuli above the neuron’s threshold trigger action potentials of identical magnitude
All or Nothing principle
Positive outside, negative inside state- resting potential
Polarization
Loss of the inside/outside charge difference, causes the next section of axon channels to open
Depolarization
In nerual processing, a brief resting period occurs after a neuron has fired
Refractory period
The electric potential across the plasma membrane of a neuron when it is in the non excited, or resting state
Resting Period
A neurotransmitters reabsorption by the sending neuron
Reuptake
The level of stimulation required to trigger a neural impulse
Threshold
Influences movement, learning, attention, and emotions
Dopamine
Affects mood, hunger, sleep and arousal
Serotonin
Helps control alertness and arousal
Norepinephrine
A major excitatory neurotransmitter, involved in memory, oversupply can stimulate the brain, producing seizures, tremors and insomnia
Glutamate
A major inhibitory neurotransmitter, undersupply is linked to seizures, tremors, and insomnia
GABA
A neurotransmitter in both peripheral and central nervous systems, it plays a role in the modulation of pain
Substance p
Neurotransmitters that can influence the perception of pain or pleasure
Endorphins
Enables muscle action, learning and memory
Acetylcholine