Knowledge clips Flashcards
(27 cards)
What is adaptation?
You won’t smell it anymore after long exposure
What is sensitization?
Chilli becomes hotter when chewing on it
What is desensitization?
Exposure over long time period decreased effect
What is intensity suppression?
Mixture of odours when one of them becomes less perceivable
Suppression release
When you are adapted to one odour, suppression is the other way around
Synergy
One taste enhances the intensity of the other
What is the difference between a complete and incomplete design?
With a complete design, all subjects get all samples.
When would you use the spit out method?
With alcohol or analytical tests
When would you use the swallow method?
When testing aftertest or hedonics
How do you call it when there is no signal and the participant says yes?
False alarm
How do you call it when there is no signal and the participant says no?
Correct rejection
How do you call it when there is a signal and the participant says yes?
Hit
How do you call it when there is a signal and the participant says no?
Miss
How do you calculate d-prime?
Z (hits) - Z (false alarm)
What is the JND?
Just noticeable difference, when a difference can be detected in 50% of the cases.
What is the method of limits?
Same as the staircase method, but with one sample
What is the ascending forced-choice procedure?
Similar to the staircase method but only upwards
What is the JAR scale?
The Just about right scale can measure the degree of desirability on a visual scale.
What is the context effect?
When the judgement is relative to the environment
What is the contrast effect?
A bias where it matters what is next to the product (bread is perceived saltier when the salt is not evenly distributed)
What is the adaptation level theory?
People can get used to a low salt diet, then everything is perceived as saltier
What is the assimilation effect?
Packaging can affect taste ratings
What is the halo effect?
The correlation of positive attributes. Added vanilla flavour also increased creamy attributes.
What is the horns effect?
Opposite of halo effect. Negative attributes are correlated.
