Lisa Is Participating in a Psychology Experiment

question 129

Multiple Choice

Lisa is participating in a psychology experiment. She is seated in a dimly lit room and is told to look straight ahead at the blank screen. Lisa's task is to detect points of light as they appear on the screen, and Lisa will be paid $10 for every point of light she correctly detects. Several minutes into the experiment, Lisa is discouraged by how few light points she is seeing, so she changes her strategy and starts focusing off to the side of the screen rather than in the middle of the screen as she had been. Sure enough, by the end of the
Experiment, Lisa has enough money to buy the pizza for tonight's study group. Lisa's new strategy worked because:

• A) the image then fell on the part of the retina more densely packed with rods.
• B) the image then fell on the part of the retina more densely packed with cones.
• C) the image then fell on the outside of the retina where the cones are denser.
• D) the image then fell on the fovea where the dim light is more easily detected.

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Definitions:

NMR Data

Information obtained from nuclear magnetic resonance spectroscopy that provides details about the structure of molecules based on their magnetic properties.

Singlet

A term used in spectroscopy to describe a peak or signal that consists of a single line, often related to the absence of splitting in NMR or other spectra.

Ppm

Stands for parts per million, a unit of concentration often used to measure the presence of a substance in a mixture, especially in atmospheric or water pollutants.

NMR Spectrum

A representation of the nuclear magnetic resonance of a substance, providing detailed information about the structure, dynamics, reaction state, and chemical environment of molecules.