Intro Sensation/Perception

Perception can be defined as-

• how we perceive different things

• how we interpret the information from the external world

• how we sense things from the external world

When information is converted to neural messages they are called:

• Transduction

• Transportation

• Translucent

Absolute threshold refers to

• The maximum stimulation required to say anything

• The minimum usage of sense organs

• The minimum stimulation necessary to detect a stimulus

Top down processing refers to

• the information coming from our sensory inputs

• the use of contextual information in pattern recognition.

• the way we process things we have never seen before

Which of the following is a perception?

• noting a change in temperature
• hearing an increase in volume
• recognizing an object as a car
• viewing a decrease in brightness

If a dog hears a whistle that a person cannot hear, this suggests that dogs and humans have different

• change blindness

• perceptions

• absolute thresholds

• difference thresholds

A principle that states, for any change in a stimulus to be detected, a constant proportion of that stimulus must be added or subtracted.

• Signal detection theory

• Weber's Law

• Difference Threshold

• Absolute threshold

Alice is eating a piece of fruit. After a while, she notices that the fruit tastes less sweet and tangy than it did when she first bit into it. Alice is experiencing ____.

• habituation
• accommodation
• sensory adaptation
• subliminal perception

The smallest difference between two stimuli that can be detected 50% of the time is called

• absolute threshold
• difference threshold
• sensory adaptation
• subliminal perception

A researcher presents two lights of varying brightness to a subject who is asked to respond "same" or "different" by comparing their intensities. The researcher is seeking the

• just noticeable difference.
• absolute threshold.
• subliminal threshold.
• minimal threshold.