Chapter 4 & 5 Notecards

What is the term for the minimum stimulus energy needed to detect a particular stimulus 50% of the time?

• Absolute Threshold

• Difference Threshold

• Selective Attention

• Bottom-up Processing

Which theory explains how we perceive color through three types of cones sensitive to red, green, and blue?

• Trichromatic Theory of Color

• Opponent-Process Theory

• Weber's Law

• Bottom-up Processing

What is the name of the part of the eye that controls the amount of light that enters?

• Pupil

• Lens

• Retina

• Cornea

Which part of the eye is responsible for focusing light onto the retina?

• Lens

• Iris

• Cornea

• Pupil

What is the term for the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment?

• Sensation

• Perception

• Selective Attention

• Grouping

Which term refers to the organization of the visual field into objects that stand out from their surroundings?

• Grouping

• Proximity

• Continuity

• Closure

What is the name of the part of the eye that contains photoreceptor cells?

• Retina

• Iris

• Cornea

• Lens

Which term describes the ability to focus on a specific stimulus while ignoring others?

• Selective Attention

• Absolute Threshold

• Difference Threshold

• Top-down Processing

What is the term for the smallest difference in stimulation that can be detected 50% of the time?

• Difference Threshold

• Absolute Threshold

• Selective Attention

• Bottom-up Processing

Which part of the eye is responsible for regulating the size of the pupil?

• Iris

• Lens

• Retina

• Cornea