Escape behavior
(e.g. opening an umbrella in a rain shower/ you are ESCAPING the aversive stimulus in this case, rain).
- Answers is behavior that terminates or ends an aversive stimulus
Avoidance behavior
(e.g. opening an umbrella before stepping out in the rain / you are preventing a aversive stimulus, in
this case, the rain). - Answers is behavior that prevents the aversive stimulus from even occurring
Shuttle Box Procedure - Answers Experimental investigations of escape and avoidance
1. Rat placed in chamber
2. Light presented
3. Shock presented (Shock is continuous)
- Rat can avoid/escape shock by climbing over the barrier (ESCAPE/AVOID SHOCK
• Dave notices Ryan has horrible body odor.
• Upon smelling Ryan, Dave comes up with an excuse to leave the area so that he doesn't have to
smell him anymore.
• Dave sees Ryan down a long hallway. Dave ducks out into a nearby office until Ryan leaves the area.
- Answers Escape and Avoidance Real World Example
escape / avoidance - Answers Generally, ______ behavior is relatively straightforward. Rat moves
from an aversive situation to a non-aversive situation.
Motivation for __________ behavior is less clear
avoidance - Answers In _________the animal moves from one nonaversive situation (no shock) to
another (no shock).
1. Classical Conditioning
- a fear response is elicited by a CS (light)
2. Operant Conditioning
- moving away from the CS is negatively reinforced by a reduction in fear - Answers The two-process
theory of avoidance
• Avoidance responses are extremely persistent.
- Solomon et al. (1953) found that dogs will jump to avoid shock up to 600 times!
• If jumping eliminates experiencing the US, why doesn't fear of the CS extinguish?
• Anxiety conservation hypothesis - when avoidance responses are made too quickly, there is
insufficient exposure to the CS for the conditioned fear to extinguish.
• Once animals became adept at making the avoidance response, they showed no evidence of fear.
• If animals are no longer afraid of the CS, how can avoiding it be negatively reinforced by a reduction
in fear?
• It's possible that animals are just less fearful, not completely nonfearful (Levis, 1989). - Answers
Problems with the two Process theory of avoidance
Anxiety conservation hypothesis - Answers when avoidance responses are made too quickly, there is
insufficient exposure to the CS for the conditioned fear to extinguish.
avoid / - Answers Rat is put at the Start of the Alley way that is on a conveyor belt (rats are curious
and like dark areas) the end of the alley way is a Dark Compartment as you get closer to the dark
compartment there are black sidewalks that indicated the Dark compartment is near. The conveyor
belt turns on to bring the rat closer. The rat will ________ the shock by running the opposite way
once it sees the black sidewalls
One-Process Theory of Avoidance
- Herrnstein (1969) - Answers the act of avoidance is negatively reinforced simply by the lower rate
of aversive stimulation with which it is associated.
I.e. The rat climbs over the barrier because this response leads to a decreased rate of shock, not
because of decreased feeling of fear.
phobias - Answers There is a question if avoidance learning in the laboratory is analogous to real life
_________(Meneka, 1985).
, Laboratory avoidance usually requires a few pairings of the CS and US. However, human phobias
often persist following only a single, brief trial
Stampfl (1987) - Answers `
Observes What animals do to avoid specific phobia
Proposed an experimental analogue would be comparable to human phobia if:
1. the fear response could be established with one trial
2. avoidance responses have to occur on 100% of trials
Reasoned that people with phobias make the avoidance response early in the chain of events leading
up to the feared stimulus (e.g. avoiding elevators by finding a doctor's office on the first floor).
OCD - Answers a disorder that is characterized by persistent thoughts, impulses, or images
(obsessions) and repetitive, actions (compulsions) that are carried out in response to the obsessions.
Punishment - Answers Involves the weakening of a behavior by the addition of an aversive stimulus
or removal of an appetitive stimulus
increased / decreased - Answers Applying Mowrer's Two-Process Theory of Avoidance to OCD
Obsessions are associated with ______________ anxiety.
Compulsions are associated with ___________ anxiety.
active / inactive
OCD - wash hands (active) to reduce anxiety
Phobias - not go (inactive) near dogs to avoid anxiety - Answers The role of avoidance in OCD is
similar to its role in phobias. The major difference is that in OCD, an _______ avoidance response is
typical whereas in phobias, an _________ avoidance response is typical.
Exposure and response prevention (ERP) - Answers involves prolonged exposure to the anxiety-
arousing event while not engaging in the compulsive behavior that reduces anxiety.
Gradual exposure of germs:
• door handles to garbage cans to dead animals
Escape and Avoidance Conditioning - Answers Conditioning involves the strengthening of a behavior
by the removal of an aversive stimulus (negative reinforcement).
Time-out / Response Cost - Answers Two types of Negative Punishment
Positive Punishment - Answers A child talks back to his mother. Mom issues a spanking. The child
does not talk back anymore.
Negative Punishment - Answers A child plays with her food. As a result, Mom takes away dessert. The
child does not play with her food anymore.
reinforcers / decrease - Answers Both Negative Punishment and Extinction involve the removal of
________ and result in the ____________ in strength of behavior.
Time-out
Sending a child to their room
Having a child sit in the corner - Answers • loss of positive reinforcers for a brief period of time
following a problem behavior.
Examples?
The time-out setting could actually be reinforcing if:
child is not a fan of the current activity (e.g. dinner)
the location of the time-out is reinforcing (e.g. games)
Time-out periods are often too long
- Parents often treat these periods as a way to get their kids "out of their hair"
Miss out on reinforcing appropriate behavior - Answers Problems with time out
Response cost
Forced to pay a fine - (losing money)
Prohibiting playing video games - Answers removal of a specific reinforcer following the occurrence
of a problem behavior.
Examples?
- Severity of the punishment can be adjusted to suit the behavior being punished ($$$$ for higher
speeds).