lecture 3 Flashcards
non associative learning:
learning that does not require specific association with actions or consequences
habituation:
a decrease in responding to inconsequential stimuli presented repeatedly. simplest form of learning
sensitization:
an increase in awareness and responsiveness to arousing or emotional stimuli
habituation example:
wearing face masks when covid first started. it was uncomfortable to wear, but we got used to it as the negative outcomes were inconsequential
sensitization example:
your brother once hid under the stairs of your basement and popped out to the jump scare, and now when you go down there, you react as if someone may pop out at you
a simple reflex circuit has how many parts?
3
what is the first part of a simple reflex?
a sensory receptor detects a stimulus from the outside environment, then fires action potentials to let the next neuron know
what is the second part of a simple reflex?
an interneuron then relays the sensory signal to motor neurons
what is the third part of a simple reflex?
motor neurons then drive muscle contractions
sensory adaption:
gradual decline in sensitivity to things like rotten smells, jewelry, and noises like AC
sensory adaption occurs when a:
sensory neuron stops relaying the message
fatigue occurs when:
the motor neuron stops reacting to the message
habituation occurs when:
the interneuron stops sending the message
sensory adaption occurs ___ _____ response
no other
habituation occurs when you respond in:
other ways, like heart beat increasing
habituation is both:
stimulus specific and response specific
dishabituation:
recovery of a previously habituated response that occurs when a new stimulus that generates the same response is presented
preferential viewing task:
tells us whether a baby can recognize a stimulus
infants spend ___ time viewing a ____ _____ than a pre-exposed stimulus
more; novel stimulus
preferential viewing task results:
most will spend double the time looking at the new image, this demonstrates it remembers the first image
comparative psychology:
study of the behavior and mental processes of non human animals
beyond image recognition:
scent recognition, presented hamster multiple times containing the scent of another hamster. the hamster should spend less time smelling the slide each time (habituation)
invertebrate have:
a primitive nervous system and have simple reflex circuits that are easier to investigate as neurons are larger
dis habituation is when an animal will spend:
longer sniffing the slide each time
habituation has been retained in which type of memory?
long term memory
how to tell if it is habituation or sensory adaption:
the sensory neurons still have action potentials whereas the interneurons have less action potentials and the motor neurons have none
sensitization:
increases the magnitude of behavioral responses to stimuli, an increase in awareness of and responsiveness to arousing or emotional stimuli
in habituation, do sensory neurons still have action potentials?
yes
long term depression is a decrease in:
synaptic efficiency
