Controllability of Reinforcers and Learned Helplessness in Instrumental Behavior

What is the learned helplessness effect?

A phenomenon where animals learn that they have no control over aversive reinforcers, leading to learning deficits.

What does the triadic design in learned helplessness studies involve?

It includes groups exposed to escapable shock, yoked inescapable shock, and restricted conditions during escape-avoidance training.

What are the two consequences of the expectation of lack of control in learned helplessness?

1. Reduces motivation for instrumental responding. 2. Makes it more difficult to learn that responses are now effective.

How can learned helplessness be prevented?

By using a marking stimulus to highlight the instrumental response needed to avoid shock.

What is the role of the response-reinforcer contingency in instrumental behavior?

Instrumental behavior is sensitive to the response-reinforcer contingency, affecting learning outcomes.

What happens during the exposure phase of the triadic design?

Animals learn that they cannot control their behavior to prevent the delivery of shocks.

What is the result of escape-avoidance training in Group E of the triadic design?

Rapid-avoidance learning.

What is the result of escape-avoidance training in Group Y of the triadic design?

Slow-avoidance learning.

What feedback cues are experienced at the start of the escape response?

Shock-cessation feedback cues.

What feedback cues are experienced after the termination of shock?

Safety-signal feedback cues.

What does the learned helplessness hypothesis propose?

It explains the results of the triadic design by suggesting that animals expect future reinforcements to be uncontrollable.

What is the significance of the mean latency in the triadic design?

It measures the time taken for animals to respond during escape-avoidance training.

What does the term 'instrumental responding' refer to?

Behavior that is performed to obtain a desired outcome or avoid an aversive stimulus.

What is the impact of uncontrollable reinforcement on motivation?

It reduces motivation for engaging in instrumental behavior.

What type of reinforcement is used in learned helplessness experiments?

Aversive reinforcement, such as shock.

What is the purpose of the marking stimulus in learned helplessness prevention?

To highlight the instrumental response necessary to avoid an aversive outcome.

In the context of learned helplessness, what does 'yoked inescapable shock' mean?

A condition where one animal's shock is dependent on another's behavior, leading to a lack of control.

What does 'escape-avoidance training' involve?

Training that teaches animals to escape or avoid an aversive stimulus.

What is the significance of the 'blocks of 5 trials' in the experiments?

They structure the training sessions to assess learning and response patterns over repeated trials.