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CBSensory



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What taste bud touches, but doesn't taste?
Filiform papillae.
List 5 types of biases that may be caused by order of presentation in sensory evaluation
Contrast effect, group effect, error of central tendency, pattern effect, time error/positional bias
When can one-tailed test be used for sensory testing?
Never
What two compounds are most commonly used as standards for bitterness in sensory evaluation?
Quinine and Caffeine.
Identify the name of this sensory test: five samples are presented and panelists are instructed that two are of one kind and three are of another. The panelists are then asked to identify the two different samples.
Two out of five test
Which descriptive sensory analysis technique uses consumers instead of trained judges?
Free choice profiling
Which sensory test involves asking panelists to identify the odd sample among three?
Triangle test
What does JNND stand for?
Just Noticeable NonDifference
What term describes a test where consumers rate liking on a numerical scale?
Hedonic rating test.
Describe the difference between hue, value, and chroma.
HUE: a color or shade . VALUE: value refers to the lightness or darkness of a color.When referring to pigments, dark values with black added are called “shades” of the given hue name. Light values with white pigment added are called “tints” of the hue name. CHROMA: purity or intensity of color E.G.In red hue, fire engine red, brick red & grey is pure red/high intensity, mid intense & low intensity, respectively
If you have 8 panelists who will try all 4 samples, what type of experimental design would you use and how many degrees of variance would you have?
Randomized complete block design; degrees of variance 8-4 = 4
Individuals who are extremely sensitive to the compound PROP are called what?
Super-tasters
What is the meaning of the term "organoleptic testing"?
Measuring of attributes of food that individuals sense via sight, sound, taste, smell, etc.
Define enhancement in the context of the interaction of stimuli presented simultaneously as mixtures.
The effect created when one substance increasing the perceived intensity of a second substance.
Name the receptors that detect the quality parameters of the appearance, odor, taste, and mouthfeel of foods.
Appearance – photoreceptors Odor – chemoreceptor (olfactory cells) Taste – chemoreceptors, taste buds Mouthfeel - thermoreceptor, mechanoreceptors, and trigeminal nerve endings
What is the standard against which all sweetners are measured in terms of quality of taste and taste profile?
Sucrose (table sugar)
What sensory test uses a triangle of samples to detect differences?
Triangle test.
What are the 3 primary colors?
Red, Blue, and Green
Describe the halo effect.
When more than one attribute of a sample is evaluated the ratings will tend to influence each other. Simultaneous scoring of various flavor aspects along with overall acceptability can produce different results than if each characteristic is evaluated separately
What three taste qualities share a common signaling pathway?
Bitter, sweet, umami. All use G-protein-coupled receptors (GPCRs)
The fifth taste response, whose substance are often called flavor potentiators like MSG is called
Umami
What are the functions of the following parts of the eye in seeing color? Cornea, lens, iris, retina, fovea
Cornea and lens: focus light onto the retina; Iris: regulates light entering the eye; Retina: contains rods and cones; Fovea: critical in color detection.
What phenomenon explains why sweetness reduces perceived bitterness?
Cross-modal suppression.
The force required to bite through something describes what sensory attribute?
Hardness
What is the term for the smallest detectable difference between two stimuli in sensory evaluation?
Just noticeable difference (JND) or difference threshold.
What is the difference between a category scale and a ratio scale?
Category scale is made up of equal intervals, Ratio scale has the judge express ratios of intensities (sample compared to reference)
How does adding a bit of salt change the taste of tonic water (with quinine)?
Decreases bitterness
Human perceptual analysis involves 6 sensations. Name them in the order in which they occur when selecting and then eating a food.
1) sight, (2) smell, (3) texture, (4) taste, (5) hearing, and (6) trigeminal ("feeling factors")
What is the sensory effect that results from the interaction of calcium and pectin
Texture (firming)
What is determined by changing the variable stimulus by small amounts above and below the standard until the subject notices a difference?
Just noticeable difference
In which of the following tests do you need a reference comparison: duo-trio, hedonic, paired comparison
Duo-trio; paired comparison
Compare descriptive analysis and consumer acceptance testing in terms of panelist training, data output, and applications.
Descriptive analysis uses highly trained panelists to generate quantitative sensory profiles, while consumer acceptance testing uses untrained consumers to assess liking or preference. Descriptive tests provide detailed attribute intensity data, whereas consumer tests yield hedonic data used for product optimization and market positioning.
What does the term oleogustation refer to?
The taste of fat
What is the average lifespan of a taste bud?
10-14 days
What is "error central tendency" in sensory analysis?
Occurs when panelists hesitate to use the extreme values on a scale and tend to center their responses on the scale.
What is the main compound responsible for the flavor of banana?
Isoamyl acetate
What is the term used to describe the least energy capable of producing a sensation?
Absolute threshold
Differentiate between difference testing and descriptive analysis, giving one example method for each.
Difference testing determines whether products differ (e.g., triangle test). Descriptive analysis quantifies sensory attributes (e.g., QDA).
What is the number of combinations that can be used in a triangle test?
6
What multivariate analysis technique reduces sensory data dimensionality?
Principal component analysis.
Sensory tests may be divided into 3 groups on the basis of the type of information that they provide. What are the three types?
Discrimination, descriptive, affective (preference)
Two methods to mask differences between sample appearances during sensory testing?
Change the lighting, use different lights such as red, darker in the room
How would you determine which brand of pudding is preferred by customers?
Sensory evaluation, preference tests
Describe logical error.
When two or more characteristics of the samples are associated in the minds of the assessors. Knowledge that a darker beer tends to be more flavorful, or that darker mayonnaise tends to be stale, causes the observer to modify his verdict, thus disregarding his own perceptions
What type of sensory bias occurs when knowledge of brand influences perceived product quality?
Expectation bias.
Which sense detects sweetness, sourness, bitterness, saltiness, and umami?
Taste.
What is the relationship between temperature and sweetness?
Temperature increases, sweetness increases
What statistical method evaluates relationships between sensory attributes and instrumental data?
Partial least squares regression.
What is the mathematical model used in sensory descriptive determination test?
Thurstonian model
What type of pressure should a sensory evaluation room have?
Positive pressure to maintain cleanliness.
G protein couple receptors detect what three tastes?
Bitter, sweet, umami
Name the sensory phenomenon where the perceived intensity of a stimulus decreases during continuous exposure (e.g., after the first few sips of coffee).
Adaptation
What is usually meant by 'flavor factors' in sensory quality?
Both sensations perceived by tongue and aromas perceived by the nose
In sensory tests what scale is used to measure the appropriateness or optimum level of specific attributes?
Just about right
What type of consumer test measures purchase intent using a probability scale?
Purchase intent testing.
What are the five basic tastes?
Sweet, salty, bitter, sour, umami
What is the term for loss of smell?
Anosmia
List four factors that can bias sensory evaluation and one control strategy.
Bias sources include order effects, expectation, fatigue, and carryover; controls include randomization, blinding, palate cleansers, and panelist training.
Name the compound most commonly used as the standard references for each of the five basic tastes during descriptive analysis.
Sweet: sucrose, sour: citric acid, bitter: caffeine/quinine, saltiness: NaCl, umami: MSG
Describe four aspects of appearance of a sample in sensory evaluation.
Color: hue + saturation + luminance Consistency: stickiness + loose particles Size: diameters + geometry Texture: shine + smoothness + roughness Shape Surface characteristics
In this discrimination test of sensory evaluation panelists must choose whether or not two coded samples are different.
Paired comparison
What are the three basic categories of sensory tests? Give one example of each.
Discrimination: Triangle or duo–trio test Descriptive: Flavor profile or QDA Affective: Hedonic rating or preference test
Describe expectation error.
Subjects anticipate the sensation and report their response before it is applicable.
Discuss consumer acceptance testing: Differentiate between affective and analytical tests. Name two common hedonic scales. Explain one factor that can bias consumer responses.
Affective vs. analytical tests: Affective tests: Measure liking or preference (consumers) Analytical tests: Measure specific sensory attributes (trained panelists) Two common hedonic scales: 9-point hedonic scale, 7-point hedonic scale One factor that can bias responses: Brand information, Color or appearance, Order of presentation, Expectations or context
About how many taste buds does an adult human have?
8000-10000
What mineral is involved in the possible 6th taste?
Calcium
Who developed the flavor profile method?
Arthur D. Little
What term describes the concentration of an aroma in a food divided by its threshold?
Aroma value or odor activity value
Halo effect in sensory means?
Subjects rate the same attributes when they appear in a series of questions differently from when they were asked separately/ One possitive/negative attribute of a sample affects the rating of other aspects.
If the HUE value is 10, you are measuring the color of: A.tomato, B.lemon, C.green apple, or D.onion?
A. tomato
What is the probability of a duo-trio test?
0.5
What is the psychophysical law that relates stimulus intensity to perceived intensity?
Stevens’ Power Law.
How many olfactory cells are located in the olfactory region? A. 10-20 M B. 1-20 M C. 10-30 M D. 1-2 M
A. 10-20 million
Identify the name of this sensory test: each subject is presented with two samples, and are asked whether the samples are the same or different.
Same/difference of simple difference tests, may also be paired comparison (lacks predictable null hypothesis)
Which alkaloid compound is an anti-malarial agent and is the standard for bitter taste sensation?
Quinine
What does JND stand for?
Just-Noticeable Difference
Name 2 food ingredients that are used as flavor enhancers
MSG, inosine phosphate, guava nectar, maltitol, neotame, yeast extract, etc.
Which of the following is flavor enhancer?: MSG, citric acid, mono potassium glutamate
MSG
What is an achromatic color?
A color that has no hue (white, gray or black)
What is the term for the smallest difference in a sensory stimulus that can be detected?
Just Noticeable Difference (JND)
Which fundamental taste sensation exhibits the most variability in terms of perception?
Bitter
Explain temporal dominance of sensations (TDS) and how it differs from static descriptive analysis.
TDS captures dominant sensory attributes over time during consumption, whereas descriptive analysis provides static intensity ratings at a fixed point.
Give the chance probability for the following discrimination tests: triangle test, duo-trio test, paired comparison
Triangle Test= 1/3;Duo-Trio Test=1/2;Paired Comparison Test= 1/2
What are papillae?
Papillae are the small bumps on the tongue; taste buds are within papillae.
Give the definition of sensory evaluation.
A scientific displine that evokes, measures, analyzes and interprets responses to foods and other materials as perceived by the senses of sight, smell, touch, taste, hearing, and feeling factors(trigeminal sensations)
What amino acid is the source of most flavor compounds in soy sauce?
Glutamic acid.
Depending upon the type of scale used, sensory data can be of 4 types. Name these data types.
Nominal, ordinal, interval and ratio data
Compare hedonic testing and descriptive analysis in sensory science.
Hedonic testing measures consumer liking using untrained panelists, while descriptive analysis uses trained panelists to quantify specific sensory attributes and intensities.
Where are the taste pores found on the tongue?
In the taste buds.
What is the chance probability for the paired comparison test?
Paired Comparison Test= 1/2
What does JAR stand for in sensory evaluation?
Just About Right
In sensory evaluation, what is the name of the test where three samples are presented—two are identical and one is different—and the panelist must identify the odd sample?
Triangle Test
Name the three components of the "Tristimulus Values" used to quantify color in the CIE system.
X, Y, and Z
What are the 3 coordinates in the Hunter-Gardner color solid?
L, a, b
What term describes increased sensitivity following stimulus removal?
Sensory rebound.
What are the subtractive primaries?
Cyan, magenta, and yellow
What is used to compare the relative sweetness of all sweeteners?
Sucrose (table sugar in white packet)
Which taste qualities are NOT mediated by G-protein coupled receptors?
Sour, salty
In regard to sensory evaluation, differentiate between "triangle test" and "duo-trio test".
Both are classified as difference tests. A triangle test consists of three samples, two are the same and one is different. The participant is asked to identify the different sample. A duo-trio test consists of three samples in which two are the same and one is different. One of the samples is presented as the reference sample and the participant is asked to identify the matching sample.
What is the difference between the following types of data: nominal, ordinal, interval, ratio
Nominal = the items examined are placed in two or three groups that differ in name but do not obey any particular order or any quantitative relationship; Ordinal = the panelist places the items examined into two or more groups that belong to an ordered series (e.g. level of intensity); Interval = panelists place the items into numbered groups separated by a constant interval (e.g., three, four, five, six); Ratio = panelists use numbers that indicate how many times the stimulus in question is stronger than a reference stimulus presented earlier; Nominal data contains the least information. ordinal data carries more information and can be analyzed by most nonparametric statistical tests. Interval and ratio data are even better because they can be analyzed by all nonparametric methods and often by parametric methods. Ratio data is preferred by some because it is free from end of scale distortions, however, in practice, interval data, which is easier to collect, appears to give equal results
Which sensory method measures perceived intensity without a trained panel?
Hedonic scaling or consumer acceptance testing.
What is deglutition?
The act or process of swallowing food
What is the standard texture scale used in sensory analysis?
General Foods Texture Profile method
You are determining how much a consumer uses a specific product. This is generally considered what type of sensory test?
Acceptance test (acceptance is used of usage and preference for liking)
In sensory science, what does a “triangle test” evaluate?
Whether there is a detectable difference between two samples; the panelist must identify the odd sample out of three.
Give an example of cross potentiation.
Observer perceives more bitterness in the test sample because of the tasting of sucrose has heightened his sensitivity to bitterness
Describe error of habituation.
Tendency to continue to give the same response when a series of slowly increasing or decreasing stimuli are presented
Which of the following is NOT an analytical sensory test? a. Acceptability, b. Triangle, c. Descriptive, d. Difference from the Control
Acceptability
What are the two types of affective testing in sensory analysis?
Preference tests (which sample is preferred) and acceptability tests (how much sample is preferred)
The Hunter color scale, what does it measure?
Chroma, hue, and value.
What sensory phenomenon describes reduced perception of a stimulus after repeated exposure?
Sensory adaptation.
What is the difference between somesthesis and kinesthesis?
Somesthesis = tactile sense, skin feel; Kinesthesis = deep pressure sense of proprioception
Arthur D Little attributed with
Development of flavor profile
Put these peppers in order from the least to greatest based on their Scoville units: Poblano, Carolina Reaper, Cayenne, Birds eye chilli, Jalapeno
Poblano - 1250 Jalapeno – 5000 Cayenne – 50000 Birds eye chilli – 100000 Carolina reaper - 1500000
Carefully controlled mechanical tests on food products give what kind of results?
Objective
What specific type of sensory test is used to determine if a perceptible difference exists between two samples, where a panelist is presented with three samples and asked to identify the odd one?
Triangle test
On what binomial probability is triangle-test based?
1/3 or 33.33%
What is another name cranial nerve?
Trigeminal nerve
The R-Index is a sensory difference test which is based upon what theory?
The Signal Detection Theory, which addresses the signal-to-noise ratio present in all human sensory systems
Which of the following words means 'Food expert'? A. Matoman B. Gastronome C. Bistrolog D. Aromist
B. Gastronome
When referring to color, what does BCU stand for?
Baking contrast units
What senses are used in sensory evaluation?
Sight, smell, taste, touch, hearing, trigeminal (feeling factors)
Explain the difference between descriptive analysis and affective (hedonic) testing in sensory evaluation.
Descriptive analysis: Uses trained panelists to quantify product attributes (objective). Affective/hedonic testing: Uses consumers to measure liking or preference (subjective).
What is the first type of descriptive analysis test used in food sensory science?
Flavor profiling
What is the main difference between a triangle test and a 2 or 3-AFC test?
Triangle tests the difference is unknown, 2-AFC the subjects are specified to what characteristic is different.
What does value, hue and chroma means?
Value: lightness or darkness Hue: predominant wavelength Chroma: intensity of color
What three mamilian papillae contain taste buds?
Fungiform, foliate, circumvaliate
What is the name for the 5th basic taste, sometimes called savory?
Umami
What is the name of the chemical compound commonly used as a bitterness standard in taste research?
PTC(phenylthiocarbamide)
What experimental design should be used in consumer testing when there are too many samples to serve to each panelist? A. completely randomized design, B. randomized block design, C. balanced and complete block design, D. factorial design
C. balanced and complete block design
What are the labels on a 9-point hedonic scale?
Like Extremely, Like Very Much, Like Moderately, Like Slightly, Neither Like nor Dislike, Dislike Slightly, Dislike Moderately, Dislike Very Much, Dislike Extremely
Discuss the physiological basis of flavor perception, including taste, aroma, and trigeminal effects.
Flavor perception integrates gustatory taste, retronasal olfaction, and trigeminal sensations such as heat or cooling, processed together in the brain to create a unified flavor experience.
What is the general term for the maximum intensity of a taste, aroma, or texture that a person can detect?
Threshold (or Detection Threshold)
JAR in sensory stands for?
Just about right
In sensory science, "Thresholds" are critical. Briefly define the "Detection Threshold" versus the "Recognition Threshold."
Detection Threshold is the lowest concentration at which a stimulus can be detected but not necessarily identified. Recognition Threshold is the lowest concentration at which the stimulus can be identified (e.g., "it tastes sweet").
In 1908 what new taste was discovered?
Umami
What type of sensory test determines whether products are perceptibly different?
Discrimination test.
Salt will enhance sweet and sour flavors while suppressing bitter flavors T/F?
True
What is the Just Noticeable Difference (JND) in terms of sensory testing?
JND is the amount by which the physical concentration of a stimulus chemical has to be increased in order to be perceived psychologically.
Enhancement or suppression involves the interaction of stimuli presented simultaneously as mixtures. Define Synergy in this context.
The effect of the presence of one substance increasing the perceived combined intensity of two substances, such that the perceived intensity of the mixture is greater than the sum of the intensities of the components
Which test would you use to determine whether Coke is sweeter than Pepsi?
Paired comparison for sweetness
What is the term that refers to a person's inabilty to taste?
Ageusia
What is the scientific discipline used to evoke, measure, analyze, and interpret reactions to the characteristics of foods that are perceived by the senses?
Sensory evaluation.
What are the descriptors in texture profile analysis?
Hardness, cohesiveness, springiness, chewiness, gumminess
What are the three coordinates of the Munsell color chart?
Chroma, value, hue
What two nerves are involved in the sense of smell?
Olfactory and trigeminal.
What term describes the minimum concentration of a stimulus that can be perceived?
Detection threshold.
What is 'psychophysics'?
The discipline within psychology that investigates the relationship between physical stimuli and their subjective correlates, or percepts.
What is agnosia?
Inability to recognize and identify objects, persons, or sounds. 3 main types of agnosia are vision, hearing and touching.
What is sensory adaptation?
A decrease in or change in sensitivity to a given stimulus as a result of continued exposure to that stimulus or a similar one
What does the hunter color scale measure?
L, a, b values
What compound can be used to inhibit alpha-amylase when studying the effects of complex carbohydrates on taste?
Carbose
How do the roles of consumers and trained, expert panels differ in sensory testing?
Consumers tell you if the food is acceptable or not. Trained panels identify and describe the product attributes for use in specific product development decisions.
Rank sweetness from highest to lowest: sucralose, maltose, aspartame, stevia, sucrose
Sucralose > stevia > aspartame > sucrose > maltose
What scale ranges from “dislike extremely” to “like extremely”?
9-point hedonic scale.
In a Triangle Test, how many samples are presented, and how many are identical?
Three samples are presented, and two are identical.
What is the term for the maximum concentration of a substance that can be detected by an individual?
Threshold Concentration (or Detection Threshold)
What term describes increased liking after repeated exposure to a food?
Mere exposure effect.
Which of the following flavors can be felt at the tip of the tongue: sweet, salty, sour, bitter, umami?
Traditionally: Sweet and salty are more prominent at the tip. However, all taste buds can detect all tastes; the "tongue map" is outdated.
In sensory analysis, what type of scale is generally used for acceptance testing?
Hedonic
What are the major attributes measured in sensory evaluation?
Appearance, aroma, flavor, texture and consistency, viscosity, noise.
How does toothpaste affect the taste of orange juice?
Sodium lauryl sulfate, blocks sweet receptors in mouth and makes juice taste bitter.
The statistical test for comparison of means from small sample size (n less than 30) based upon their distribution when the standard deviation is known as
The t-distribution or Student's t-distribution
What is an “anchor” in a sensory scale?
A reference point that defines extremes (e.g., “extremely sweet” vs. “not sweet at all”).
What sensory phenomenon causes one taste to suppress another?
Mixture suppression.
Name 3 of the 4 most common trigeminal sensations.
Oral heat, metallic, astringency and pungency
What sensory test is most appropriate to determine whether two products are perceptibly different?
Triangle test (or difference test).
CIE L*a*b* (CIELAB) is a color space specified by the French Commission internationale de l'éclairage. What is the translation of the name of this commision in English?
International Commission on Illumination
The force required to bite through something describes which sensory attribute?
Hardness
What is the relationship between aroma and taste in flavor?
Aroma produced by volatile compounds; flavor provided by nonvolatile components.
What is fuzzy logic in simple terms?
A form of logic which can take many values, as opposed to 1 or 0 or True or False, in conventional Boolean Logic
Humans taste with their tongues, what do butterflies taste with?
Their feet
Flavor is termed organoleptic because it is determined by:
A blending of odor and taste
To which of the following four basic tastes are humans most sensitive? A) Bitter B) Sweet C) Sour D) Salty
A) Bitter
Sensory panelists hesitation to use the extreme values on a rating scale is known as what type of error?
Error of central tendency
How many serving orders are possible with 5 samples?
5! = 120
What type of sensory test asks panelists to determine which of three samples is different?
Triangle test.
What compound is used to distinguish supertasters?
PROP (propylthiouracil)
The results of what sensory test are often plotted to give a flavor profile, with the resulting graph being referred to as a spiderweb plot?
Quantitative Descriptive Analysis
Which taste is associated with monosodium glutamate?
Umami.
How many serving orders are possible in a constant reference Duo Trio test?
2
Who is more sensitive to sweet and salty tastes, men or women?
Women.
What sensory test determines whether products are perceptibly different from one another?
Discrimination test (e.g., triangle test)
Describe stimulus error.
This occurs when panelists notice otherwise irrelevent factors regarding samples or their presentation which modifies their perception.
The flavor profile has become a standard approach to the sensory measurement of aromas and flavors. What company developed this method in 1948?
Arthur D. Little inc.
A difference of ___ BCU is estimated to be a visual difference in a product.
0.1
In sensory evaluation, the carryover stimulus from preceding samples on the sample currently being evaluated is known as ______.
Context effect/ carryover effect/ order effect
Who is more sensitive to sour tastes, men or women?
Men.
Identify the name of this sensory test: each subject is presented with two samples and is asked whether the samples are the same or different.
Discrimination testing, paired comparison or same-different test
Which statistical test is commonly used to analyze hedonic scale data?
ANOVA.
Name 3 types of sensory difference tests.
Duo-trio, triangle test, difference from control, sequential tests, similarity tests
What is the compound Caffeine Citrate used for in Sensory?
used as a standard for bitterness
Sensory evaluation methods that are devised to measure the acceptance of a product are called Affective Tests. Give an example.
A paired preference test, A preference ranking test, and The hedonic test method
Define suppression in the context of the interaction of stimuli presented simultaneously as mixtures.
The effect created when one substance decrease the perceived intensity of a mixture of two or more substances
What does AFC stand for in a 2AFC or 3AFC sensory test?
Alternative forced choice
What term describes interactions where one sensory modality influences another?
Cross-modal interaction.
What is the so called "trigeminal senses"?
Free nerve endings (of the trigeminal nerve) present in the oral and ansl cavities which are sensitive to irritants (capsaisin, acetic acid, ammonia, astringents) and act as protection device against harmful chemicals, also detect texture and most other food characteristics
Name the 3 components of flavor.
Taste, aroma, trigeminal (and mouthfeel)
In a sensory what are the sensations elicited by volatile compounds?
Odour, smell
In sensory analysis, the assignment of symbols, usually with 3-digit numbers, to test samples so they can be presented to a subject without identification is called ______.
Coding
Explain the difference between analytical, descriptive, and affective sensory tests and give one application of each.
Analytical tests determine whether products are different (e.g., triangle test), descriptive tests quantify sensory attributes using trained panels (e.g., QDA), and affective tests measure consumer liking or preference (e.g., hedonic scale). Each serves a different role in product development and quality assessment.
What does CIE stand for?
Commission Internationale de L'Eclairage
What is the influence of the condition of a surface on volatility?
At a given temperature, more volatiles escape from a soft, porous, and humid surface than from a hard, smooth, and more dry one
What type of ANOVA should be used when the means being compared are based on multiple observations from the same group of individuals?
Repeated measures ANOVA
What sensory testing error occurs when the order of sample presentation influences perception?
Order bias.
What is labeled magnitude scaling?
It is a category ratio scale that generates data similar to magnitude estimation. It uses unequal, quasi-logarithmic spacing of verbal labels such as barely detectable, weak, moderate, strong, very strong, and strongest imaginable.
What is the term for investigation and quantification of how physical stimuli evoke sensations and perceptions?
Psychophysics
In sensory analysis what is the term for when the brain allows very specific positive traits to influence overall evaluation?
Halo effect
the Munsell System is based on the use of what 3 color attributes?
Hue, Value, and Chroma
Which compound is responsible for umami flavor?
MSG
An object that absorbs light in the red and the blue regions of the visible spectra will appear what hue?
Green
Which multivariate statistical method is commonly used to relate descriptive sensory data to instrumental measurements?
Partial Least Squares (PLS) regression.
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