anatomy
what part of the brain are the subcortical structures located in
forebrain
what is the only sense that does not send its information to the thalamus
olfactory (smell) goes to forebrain
communication within neurons is
electrical
what are the 4 types of neurons
in signal detection theory when the stimulus is not present there are two options for a response what are they and what do each of them mean
correct rejection- no stimulus and saying no
false alarm- no stimulus and saying yes
what connects the outer ear to the eardrum
the taller the light wave (amplitude of the wave) the [lighter/darker] the color will appear
darker waves are taller, light colored waves are shorter (this has to do with shade- navy blue has a taller amplitude than baby blue) height of wave= intensity, length of wave= actual color spectrum (long=red, short= purple like a rainbow red is the largest arch)
T/F after the neuron fires (action potential) the refractory period occurs, when the neuron is in the absolute refractory period it needs a larger stimulus to fire again
false- neuron cannot fire again in the absolute refractory period, it can fire again with a larger stimulus in the relative refractory period
what type of cells help repair damage, provide glucose to neurons, and help create the myelin that surrounds the axon
glial cells
when a baby is born they will touch everything to gain sense information, what kind of perception is this
haptic perception
what part of the ear vibrates as sound waves pass through
ossicles- hammer/malleus, anvil/incus, stirrpup/stapes
rods are active in [high/low] light and are used to see [color spectrum/ greyscale]
cones= bright light and color spectrum (think Cones and Color both start with C)
dopamine agonist
T/F the terminal buttons of one neuron connect to the dendrites of the next neuron in the communication sequence
false- the terminal buttons do not touch the dendrites of the next cell, the space in between is the synapse
choosing between cheating on a test or failing would be what type of conflict
avoidance avoidance
a delta fiber
a sound wave that is very short and with high frequency (waves close together) would have a [high/low] pitch and be [loud/quiet]
short waves= quiet
high frequency= high pitch
T/F when the action potential is fired the neuron potential goes from -70mv to 40mv and it goes from cell body to axon to terminal buttons and then to the synapse and then the terminal buttons of the next neuron
false- transmission always goes from dendrite to body to axon to terminal button and never the other way up a neuron
T/F when you are scared your heart rate increases and epinephrine is more abundant in the brain, the system at work during this time is the parasympathetic nervous system
false- being in an energized state of mind does increase hr and epinephrine but it is the sympathetic nervous system that deals with fight or flight response
what types of imagine techniques are used to show structure
MRI, DTI, NIRS
What is the visual pathway for a light wave to become a picture?
retina, optic nerve, optic chiasm (opposite side of brain and field of vision), optic tract, thalamus, primary visual cortex
when there is less of a difference between what the two retinas are seeing you are [closer to/farther from] the object and is this binocular or monocular
binocular and less of a difference between the two pictures means you are further from the object
T/F when learning how to do something new neuronal connections are made, once the skill is learned the synapses become inactive and remain there until death
false- once learning has occurred, synapses that no longer serve a purpose are removed
when walking your brains tells you to take a left, this causes your legs to move in a way such that you are now heading left, which neurons contribute to the change in movement, are these neurons afferent or efferent
motor neurons are efferent because they move info away from the brain; efferent=effect
lower stress leads to a healthier life, this was shown in which study
Friedman and Ulmer- group of heart attack pts asked to change diet and exercise and group of ha pts asked to change diet, exercise, and lower stress; those with lower stress had fewer repeat attacks