George Sperling Attempted to Assess the Duration of Iconic Memory

question 49

Multiple Choice

George Sperling attempted to assess the duration of iconic memory by

• A)briefly flashing a display of letters and immediately asking how many letters people could recall
• B)asking people to recall different sets of numbers that were simultaneously presented to both ears
• C)investigating the accuracy of flashbulb memories
• D)measuring how long it took people to add three two-digit numbers in their head and provide the correct sum

---

Definitions:

Genetic Map

A genetic map is a representation of the order and approximate distances between genes or other DNA sequences on a chromosome, valuable for understanding genetic linkage and inheritance patterns.

Dominant Gene

An allele that expresses its phenotypic effect even when heterozygous with a recessive allele, determining the characteristic it codes for.

Recessive Gene

A gene that must be present on both chromosomes in a pair to express a recessive trait, unlike a dominant gene where only one is necessary for the trait to be expressed.

Cystic Fibrosis

A genetic disorder that affects the lungs and digestive system, characterized by thick, sticky mucus that can clog airways and trap bacteria.