Vision and Eyewitness Testimony Study Guide

Front

Motion detection in peripheral vision.

Back

The easiest for human eyes to detect using peripheral vision is motion.

Front

Blindspot in vertebrates.

Back

All vertebrates have a blindspot because the optic nerve exits the retina at a point where there are no photoreceptor cells.

Front

Important concepts about central vision.

Back

Central vision is responsible for detailed vision, used for tasks like reading and recognizing faces, and relies heavily on cones for color perception and sharpness.

Front

Regulation of central vision.

Back

Central vision is mostly regulated by cones.

Front

Regulation of peripheral vision.

Back

Peripheral vision is mostly regulated by rods.

Front

Impairment of vision in low light.

Back

In low light conditions, central vision is most impaired. Cones are not activated usually very little color is observed

Front

Color perception by cones.

Back

Cones provide color in the red, green, and blue ranges.

Front

Sequential vs. simultaneous lineups.

Back

Showing suspects sequentially is preferred because it reduces the likelihood of relative judgment, where witnesses compare suspects to each other rather than to their memory of the perpetrator.

Front

Detectives' presence at line-ups.

Back

Detectives should not be present at the suspect line-up to avoid influencing the witness, either intentionally or unintentionally.

Front

Eyewitness misidentification.

Back

A leading cause of wrongful convictions is eyewitness misidentification.