In a Study of Visual Selection, Participants Were Shown a Video

question 40

Multiple Choice

In a study of visual selection, participants were shown a video of people throwing and catching a ball. Some of the people were wearing white shirts and some were wearing black shirts. Participants were asked to attend only to the group of people wearing white shirts and count the number of times they threw the ball. In this study, participants

• A) could not ignore the people wearing black.
• B) reported the total number of times the ball changed hands regardless of whether it was thrown by a person wearing a white shirt or a person wearing a black shirt.
• C) Correctly reported the number of throws made by the people wearing black shirts 50% of the time.
• D) easily completed the task, but in the process failed to notice some other peculiar events that occurred.

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Definitions:

Leukopoiesis

The production of white blood cells in the bone marrow, an essential process for the immune system's function.

Erythropoiesis

The process of producing red blood cells (erythrocytes) in the bone marrow, which is essential for transporting oxygen throughout the body.

Eythrocytes

A misspelling of "Erythrocytes," which are red blood cells responsible for carrying oxygen from the lungs to the body's tissues and returning carbon dioxide from the tissues back to the lungs.

Leukocytes

White blood cells that are part of the immune system and defend the body against both infectious disease and foreign materials.