xRead - Olfactory Disorders (September 2023)

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INTERNATIONAL CONSENSUS ON OLFACTION

TABLE VIII.8 (Continued)

Normative data available

Commercially available

Test name and author/s

No. of odors items

Reliability coefficent

Comments

Test type

Signal Detection Tests of Odor Sensitivity and Discrimination Potter and Butters, 1980 1200

NR

No

No

Forced-choice method of signal detection used For detection, 15 trials of odorant n-butanol and 15 trials of blanks 4 category response report of certainty For DISC, 4 sets of 2 odorants each presented in 32 trials (15 with paired odorants [signal] and 15 with blanks [noise] Certainty of differences assessed Tests shown to be sensitive to Korsakoff psychosis Initially a 39-step binary pyridine dilution threshold series employing flasks Later employed squeeze bottles and phenyl ethyl methyl ethyl carbinol 1150 Ascending series method of limits Anosmia = inability to detect the 10 th dilution step or lower of pyridine, hyposmia as detection of dilution steps 11—13, and normosmia as detection of steps 14 to 21 Sensitive to age and smoking 1201 Composed of an ascending forced-choice method of limits n-butanol squeeze bottle threshold test plus ID test of 10 common nonstandardized household items Ammonia, Vicks vapor rub, and wintergreen are included as trigeminal stimulants Response list of 20 odorants used to cue patient responses Four ascending method of limits ID test with blank control on each trial based on 10 two-fold water

SD

1 odor for

sensitivity 8 odors for DISC

Amoore Threshold Test Sherman and Amoore, 1983 1192

DT

1 odor

0.70

Yes

No longer

Connecticut

ID DT

10 ID 1 Threshold

ID: 0.60* Threshold: 0.68 127

No

No

Chemosensory Clinical Research Center (CCCRC) Test

Cain et al, 1983 17

4-Odorant Method of

DT

4

NR

No

No

Limits Threshold Test

Eichenbaum et al, 1983 1151

dilutions of 4 odorants: almond (McCormick),

(Continues)