In Which Situation Has a "Peak Shift" Phenomenon Occurred

question 107

Multiple Choice

In which situation has a "peak shift" phenomenon occurred?

• A) Discrimination training using an orange S^D and yellow-orange S^Δ light produces maximal responding to a red stimulus.
• B) Discrimination training results in a flat peak, with equal responding to the original training stimulus and several similar stimuli on either side of it.
• C) Discrimination training using a loud tone and a bright light produces maximal responding to comparison tones and lights of moderate intensity.
• D) Discrimination training produces two peaks in responding, one occurring at the S^D and the other at the S^Δ.

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Definitions:

Columnar Joints

Distinctive fracture-bounded columns of rock formed when hot but solid igneous rock contracts as it cools.

Pluton

A body of intrusive igneous rock that crystallized from magma slowly cooling below the surface of the Earth.

Hot Spot

A location on the Earth's surface that has experienced prolonged volcanic activity, thought to be caused by a rising mantle plume.

Igneous Feature

A geological formation or structure that has been created through the cooling and solidification of magma or lava.