Chapter 2- The Biology of Mind and Consciousness Flashcards
Chemical messengers that are manufactured by the endocrine glands, travel through the bloodstream, and affect other tissues
Hormones
Junction between the axon tip of a sending neuron and the dendrite or cell body of a receiving neuron
Synapse
Neuron that carries incoming information from the sensory receptors to the central nervous system
Sensory neuron
Level of stimulation required to trigger a neural impulse
Threshold
Posterior part of the brain that deals with a automatic survival functions
Brainstem
Recurring problems in falling or staying asleep
Insomnia
Focusing conscious awareness on a particular stimulus
Selective attention
Neurotransmitter that deals with mood, hunger, sleep and arousal
Serotonin
Cerebral cortex area at the front of the parietal lobes; registers and processes body touch and movement sensations
Somatosensory cortex
Part of the brain that deals with emotion
Amygdala
Recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active
REM (rapid eye movement) sleep
Neuron extensions that receive messages and conduct them toward the cell body
Dendrites
Sleep disorder in which a person has uncontrollable sleep attacks, sometimes lapsing directly into REM sleep
Narcolepsy
A branch of psychology concerned with the links between biology and behavior
Biological psychology
Hearing
Temporal lobe
Sequence of images, emotions, and thoughts passing through a sleeping person’s mind
Dream
The body’s speedy, electrochemical communication network, consisting of all the nerve cells of the central and peripheral nervous systems
Nervous systems
Failure to notice changes when our attention is disrupted
Change blindness
False sensory experience, such as hearing something in the absence of an external auditory stimulus
Hallucination
A technique for revealing blood flow and, therefore, brain activity. These show brain function
fMRI (functional MRI)
The brain and spinal cord makes up the
Central nervous system (CNS)
The gap between two neurons
Synapse
A nerve impulse
Action potential
Directs sensory messages
thalamus
Focusing conscious awareness on a particular stimulus
Selective attention
Part of the brain that deals with planning and producing of movement
Basal ganglia
Failure to see visible objects when our attention is directed elsewhere
Inattentional blindness
A nerve cell; the basic building block of the nervous system
Neuron
Failure to see visible objects when our attention is directed elsewhere
Inattentional blindness
A sleep disorder in which a sleeping person repeated stops breathing until blood oxygen is so low it awakens the person just long enough to draw a breath
Sleep apnea
Chemical, such as opium, morphine, or heroin, that depresses neuron activity, temporarily lessening pain and anxiety
Opiate
Thinking
Frontal lobe
Relatively slow brain waves of a relaxed, awake state
Alpha waves