PS261 Lecture Notes - Lecture 2: Motor Neuron, Comparator, Sensory Neuron

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Published on 15 Apr 2013
School
WLU
Department
Psychology
Course
PS261
Professor
Chapter 2: Elicited Behaviour 1/16/2013 4:58:00 PM
The nature of Elicited Behaviour
The Reflex
A specific relation between a stimulus and a corresponding
response that is a consequence of the organization of the nervous
system
Sensory neuron:
Motor neuron: carry signals away
Afferent: arrival
Efferent: exiting
Supernormal stimulus: ex. Wearing red lipstick, plastic sugery
Not necessarily found in nature
Consummatory behaviour: taking a nut, putting it in your mouth
Building a nest: appetitive
Fertilizing: consummatory
Beating his tail to show off: appetitive
Swimming in a zig-zag pattern: appetitive
Effects of repeated stimulation
- decar was wrong, you don’t always see the same response
habituation is stimulus specific. When you experiment with a lemon the first
10 times, you become immune to it. The 11th time there was a booming
response to the lime, the sudden change
Effects of repeated stimulation
- the new face shown to the Caucasian infants was 70% made up of the old
face and 30% made up of an alternate race
- Caucasian notice more differences in own race, Asians notice differences in
peoples faces of their own race
sensory adaptation: ex. When someone takes a picture of you with flash and
you cant see anything
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rules out fatigue: lemon lime salivation experiment. The response was
specific to the lemon because results picked up when lime was used
true/false:
1) habituation helps you to attend to stimuli around you that may be
important: false but can be true???
2) studies of sensitization need to rule out fatigue as a possible explanation
for the change in behaviour to a stimulus over time: false
3) a decrease in responsiveness over time could happen because of sensor
adaptation:
4) a control for sensory adaptation is showing that habituation is stimulus
specific: true
The dual-process theory
T/F
1) the habituation process is the pbservable…: false
2) the sum of the habituation and sensitization processes will be a
habituation or sensitization effect: true
3) false
4) false
5) the habituation process occurs in the S-R system: true
6) false
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