A Sensory Lexicon is:

Question

BlackTom AI · Accepted Answer

A sensory lexicon is a standardized list of descriptive terms used to characterize the sensory attributes of a product, often with clear definitions and reference standards.

1. Relevant knowledge points and concepts
- Sensory analysis distinguishes tools: lexicons, descriptive methods, temporal methods, and statistical analyses.
- A lexicon: collection of agreed-upon sensory descriptors (words), definitions, and often physical or reference samples illustrating each term.
- Descriptive testing (e.g., QDA) is a method that uses trained panels to measure intensity of attributes; lexicons support these tests but are not the testing method itself.
- Temporal assessment scales (e.g., Time-Intensity or Temporal Dominance of Sensations) measure how attributes change over time, not the vocabulary used to describe them.
- Sensory statistical analysis (e.g., PCA, cluster analysis) analyzes data from tests; it is not a descriptive word list.

2. Step-by-step reasoning
- Step 1: Identify what a lexicon does: provides consistent terminology so different panelists and researchers describe the same sensations in the same way.
- Step 2: Note its components: terms, definitions, reference materials, sometimes intensity anchors.
- Step 3: Differentiate functions: lexicon = vocabulary; descriptive testing = measurement procedure; temporal scales = time-based measurement; statistical analysis = data interpretation.
- Step 4: Conclude that the item whose definition matches “vocabulary of descriptors” is correct.

3. Intermediate detail (no numeric calculation required)
- Example: A coffee lexicon might list “acidity” (definition + reference), “roastiness,” “chocolate,” and provide reference samples to anchor those terms.

4. Why the correct answer is correct
- The lexicon’s primary role is to list and define descriptive terms so sensory descriptions are reproducible and comparable across studies.

5. Why other options are incorrect
- “A type of sensory statistical analysis”: incorrect because this describes methods for analyzing data, not a set of terms.
- “A temporal assessment scale”: incorrect because those measure attribute changes over time (TDS, time-intensity), not provide a vocabulary.
- “A type of descriptive testing”: incorrect because descriptive testing is the procedure that collects intensity data; the lexicon is a supporting resource, not the test itself.

Conclusion: Therefore, the correct answer is “a list of descriptive terms,” matching the provided answer.

A Sensory Lexicon is:单项选择题

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