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Susan Trained Her Rat to Press a Bar in a Skinner

question 88

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Susan trained her rat to press a bar in a Skinner box in order to get a food pellet. Susan's rat pressed the bar a lot. However, later when Susan ran out of food pellets her rat eventually stopped pressing the bar. What had happened?


Definitions:

Achiral

Describes a molecule that is superposable on its mirror image and does not exhibit chirality.

Meso Compound

A molecule with multiple stereocenters and an internal plane of symmetry, making it achiral despite its stereogenic centers.

Diastereomer

Stereoisomers that are not mirror images of each other, differing in the spatial arrangement of atoms around one or more asymmetric centers.

Achiral

A term describing molecules that are superimposable on their mirror images, indicating they do not possess handedness or chirality.

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