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Trail Making and Olfaction in Schizophrenia: Implications for Processing Speed

Published online by Cambridge University Press:  07 November 2014

Nora Goudsmit ,
Rachel Wolitzky ,
Regine Anna Seckinger ,
Cheryl Corcoran ,
Arielle Stanford ,
Paul Rosenfield ,
Ray Goetz  and
Dolores Malaspina
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Abstract

Background:

Previous research has established a relationship between smell identification deficits (SID) and particular aspects of cognitive function among patients with schizophrenia.

Objective:

To expand the extant literature, we examined the relationship between SID and the Trail Making Test to determine if processing speed is related to SID.

Methods:

Our sample included 60 inpatients from the New York State Psychiatric Institute's Schizophrenia Research Unit. We considered age, deficit syndrome, verbai intelligence quotient, and education in our analyses due to their documented relationship to smell identification ability.

Results:

Trails A errors and Trails A seconds accounted for a significant amount of the variance in University of Pennsylvania Smell Identification Test scores in a regression analysis (R2=.10, P=.008 and R2=.05, P=.04).

Conclusion:

Linking neurocognition to smell identification deficits may prove to be an essential marker for schizophrenia research.

Type
Original Research
Information
CNS Spectrums , Volume 9 , Issue 5 , May 2004 , pp. 344 - 349,356
Copyright
Copyright © Cambridge University Press 2004

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