When George Sperling Flashed a Chart of Twelve Letters for 1/20

question 29

Multiple Choice

When George Sperling flashed a chart of twelve letters for 1/20 of a second,how many letters did he find that his participants were able to remember?

• A) three
• B) six
• C) nine
• D) twelve

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Definitions:

PET

A diagnostic imaging technique that uses radioactive tracers to visualize and measure changes in metabolic processes and other physiological activities in the body.

Resting-State fMRIs

A functional MRI technique that measures brain activity by detecting changes associated with blood flow when the subject is not performing any specific tasks.

Brain Activity

The functioning and processes occurring within the brain, including neuronal firing, blood flow, and metabolic changes detectable through various technologies.

Optical Tomography

A imaging technique using light to non-invasively produce images of the body, particularly images of the internal structures.