The Device That Was Invented by Robert Fantz and Allowed

question 607

Short Answer

The device that was invented by Robert Fantz and allowed researchers to observe the movements of an infant's eyes in order to determine what infants can see and what holds their attention was the ___________.

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Definitions:

Medulla

The innermost part of an organ or structure, such as the medulla oblongata in the brain or the medulla in the kidney.

Prostate Enlargement

Prostate enlargement, also known as benign prostatic hyperplasia (BPH), is a common condition that can cause difficulty urinating in men as they age.

Cystitis

An inflammation of the bladder, often caused by a urinary tract infection, leading to symptoms such as a frequent need to urinate and pain during urination.

Pyelonephritis

Infection of the kidneys, often caused by an initial infection in one of the ureters.