Chapter 14 Sensation And Perception

Question 1

What is the absolute threshold

Answer 1

The minimum amount of stimulus energy needed for an observer to perceive a stimulus, in ideal conditions, 50 percent of the time.

Question 2

What are the six stages of sensation and perception

Answer 2

Reception, transduction, transmission

Selection, organisation, interpretation

Question 3

What is sensation

Answer 3

The process where our sensory organs or receptors receive information about the nature of growing brain

Question 4

What is perception

Answer 4

The process whereby the brain organises and interprets sensory information

Question 5

What occurs in reception

Answer 5

The stimulus energy is collected by the sense organs

Question 6

What occurs in transduction

Answer 6

The stimulus energy is converted by the receptor cells into electrochemical nerve impulses

Question 7

What occurs in transmission

Answer 7

The receptor Cells send the nerve impulses to the primary sensory cortex where specialised receptor cells respond as the process of perception begins

Question 8

What occurs in selection

Answer 8

We can’t pay attention to all the millions of stimuli that we receive at the same time, so we pick out the ones that are important to us to pay attention to those

Question 9

What occurs in organisation

Answer 9

When the information reaches the brain, it is reorganised so that we can make sense of it

Question 10

What occurs in interpretation

Answer 10

Past experiences, motives, values and context are involved in the process where the stimulus is given meaning

Question 11

What are the factors that influence taste

Answer 11

Biological (genetics-coriander), psychological (influenced by packaging) and social (culture)

Question 12

What is synaesthesia

Answer 12

A cross modal experience when stimulation of one sensory modality automatically triggers a perception in a second sensory modality or cognitive process in the absence of direct stimulation to this second modality. Often occurring when certain sounds, words and smells bring about flashes of colour

Question 13

What are the five taste senses

Answer 13

Salty, sweet, sour, bitter and umami

Question 14

What is the difference between taste and flavour

Answer 14

Taste refers to our five sensitivities (salt, sweet, sour, bitter and umami) whereas flavour involves much more such as smell, texture, spice and expectation