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Related Experiment Videos

Some new perspectives on conditioned hunger.

S Mineka

    Journal of Experimental Psychology. Animal Behavior Processes
    |April 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Appetitive drives like hunger are difficult to condition due to their slow onset. New methods show promise for measuring conditioned hunger, suggesting differences in conditioning between appetitive and aversive drives.

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    Area of Science:

    • * Behavioral neuroscience
    • * Learning and memory
    • * Physiological psychology

    Background:

    • * Traditional theories posit that appetitive drives (e.g., hunger, thirst) are not conditionable due to their slow onset.
    • * Recent research indicates only transient conditioning of appetitive drives, even with rapid onset, suggesting methodological limitations.

    Purpose of the Study:

    • * To investigate the conditionability of appetitive drives, specifically hunger.
    • * To explore potential reasons for the limited success in past conditioning experiments, including the type of conditioned stimuli (CSs) and the validity of dependent measures.

    Main Methods:

    • * Experiments 1-3 examined the association between exteroceptive CSs and internal hunger drive versus interoceptive taste cues.
    • * Experiments 4-5 employed changes in bar-pressing rates during operant extinction as a measure of conditioned appetitive drive following hunger CS probes.

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  • * Utilized operant conditioning and extinction paradigms with specific conditioned stimuli (CSs) to assess drive conditioning.

    • Main Results:

    • * Experiments 1-3 provided partial support for the hypothesis that interoceptive taste cues are more easily associated with hunger than exteroceptive CSs.
    • * Experiments 4-5 suggested that changes in bar-pressing rates during extinction are a more sensitive and valid measure of conditioned appetitive drive.
    • * Conditioned responses were found to be elusive and transitory, necessitating further investigation.

    Conclusions:

    • * The mode of onset and control, rather than just speed, may underlie the differing conditionability of appetitive versus aversive drives.
    • * The findings highlight the need for refined methodologies to accurately assess conditioned appetitive drives.
    • * Adaptive considerations likely play a role in the distinct conditioning patterns observed for appetitive and aversive drives.