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Background: Accuracy of measured auditory memory may be negatively impacted by non-proper functioning of the auditory system (i.e. hearing loss or auditory processing disorder). Purpose: How important is this impact in clinical evaluation of short-term and working memory using the digit span test? The target group used is that of psychiatric patients as this patient population has both commonly observed cognitive deficits and undocumented hearing loss and auditory processing deficits. Research design: Cross sectional. Study Sample: Twenty-two psychiatric inpatients were evaluated for short-term and working memory. Data collection and Analysis: The testing performed included (i) digit span evaluation at an intensity of 50dB HL, (ii) pure tone audiometry for hearing sensitivity evaluation and (iii) digit span evaluation at an intensity of 50dB SL (corrected based on the exact ear specific hearing sensitivity). Repeated measures ANOVA was implemented to test for differences between the two conditions (i & iii). Results: There was a documented improvement of short-term memory results due to adapting intensity of the digit span test according to each ear’s specific hearing sensitivity as measured by pure tone audiometry. The effect (F=5.047, p=.036) was present when evaluating the backwards digit span score. Conclusions: Adapting digit span test implementation intensity will provide short-term and working memory results that are more accurate and avoid over-diagnosis of cognitive deficits. The paradigm of the present study is that of psychiatric disorders but there is no reason why this is not valid for any population. *Correspondence to: Vasiliki (Vivian) Iliadou, Clinical Psychoacoustics Lab, 3rd Department of Psychiatry, Neuroscience Sector, Medical School, Aristotle University of Thessaloniki, PC 54124 Thessaloniki, Greece, E-mail: viliad@auth.gr

Inaccurately measured poorer cognition as a result of an auditory deficit