Sensory Images, Perceptions, or Disturbances That Occur in the Absence

question 241

Multiple Choice

Sensory images, perceptions, or disturbances that occur in the absence of external stimuli are called ______.

• A) obsessions
• B) compulsions
• C) delusions
• D) hallucinations

---

Definitions:

Temporal Acuity

The precision and effectiveness with which an individual can discern changes in timing or duration of events.

Visual Perspicacity

The ability to observe and understand visual information with sharpness and clarity.

Optic Chiasma

The X-shaped structure formed by the crossing over of the optic nerves in the brain, which allows visual information from each eye to be processed on both sides of the brain.

Blind Spot

Area in the retina where the axons of the three layers of retinal cells exit the eye to form the optic nerve; insensitive to light.