xRead - Olfactory Disorders (September 2023)

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507

PATEL et al.

TABLE VIII.7 (Continued)

Normative data available

No. of odorsor items

Commercially available

Reliability coefficient

Test name and author/s Smell Diskettes Briner and Simmen, 1999 1161

Comments

Test type

ID

8

NR

No

Yes

This screening test employs odorants embedded in 5-cm × 6-cm polyester diskettes that can be opened for testing and closed thereafter Three response alternatives per odorant, which include both names and pictures 102 normal patients scored 7 (11) or 8 (91) on the test 27 patients with olfactory complaints scored between 0 and 5 (mean, 2.09) Modified blast-injection procedure of Elsberg and Levy in which DT and ID thresholds are obtained based on volume of insufflated air required to produce responses Also examines times for “olfactory exhaustion” Blast-injection procedures widely criticized as confounding trigeminal and Six concentrations of n-butanol presented in pairs with the task of differentiating the strongest of each pair The weakest concentration was used as the standard Four correct trials at a given concentration led to the next more difficult trial Four fruit-like odors presented in a 12-trial match to sample task (1 same, 1 different) Total score possible is 12 Source and names of odors not provided Determined retronasal ability to identify odors Four response alternatives per stimulus Used grocery store condiments and powdered food items applied from squeeze bottles Tap water rinses between trials olfactory sensations and producing false-positive responses

Blast-Injection

DT RT Adapta tion

2 Multiple con centra tions

NR

No

No

Thresholds and Adaptation TimeTests

Rydzewski et al, 2000 1162

Intensity

NR

No

No

DISC

1 (6 con

Discrimination Test

centra tions)

Öberg et al, 2002 1163

Odor Quality

DISC

4

NR

No

No

Discrimination Test

Öberg et al, 2002 1163

Retronasal Powder Olfactory

ID

20

0.76

No

No

Identification Test Heilmann et al, 2002 1164

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