26 Do depression, anxiety, or stress moderate the relationship between auditory learning and verbal learning?

Abstract

Objective:Attention plays a key role in auditory processing of information by shifting cognitive resources to focus on incoming stimuli (Riccio, Cohen, Garrison, & Smith, 2005). Mood symptoms are known to affect the efficiency with which this processing occurs, especially when consolidation of memory is required (Massey, Meares, Batchelor, & Bryant, 2015). Without proper focus on relevant task information, improper encoding occurs, resulting in negatively affected performances. This study examines how depression, anxiety, and stress moderate the relationship between auditory attention and verbal list-learning.Participants and Methods:Archival data from 373 adults (Mage= 56.46, SD=17.75; Medu = 15.45, SD=2.2; 54% female; 74% white*) were collected at an outpatient clinic. Race was not available in a small percentage of cases included in analyses. Auditory attention was assessed via the Brief Test of Attention (BTA). Learning was assessed via the California Verbal Learning Test (CVLT-II) total T-Score (Trials 15). Mood was assessed via the Depression Anxiety and Stress Scales (DASS-42). A moderation analysis was conducted utilizing the DASS-42 as the moderator between the relationship of BTA and CVLT-II.Results:Block 1 of the hierarchical regression was significant in that BTA contributed significantly toward verbal learning on the CVLT-II (F(1, 378)=30.141, p =<.001 , AR2=.074). The standardized beta weight and p-value for BTA were (ß=.272, p<.001). When DASS variables were introduced into Block 2, the model remained significant F(3, 375)=4.227, p =.006 , AR2=.030). The DASS Anxiety subscale had significant beta weights in the model (ß=-.210 p=.004), whereas Depression and Stress were not significant (ß=.039, p=.563) and (ß=.021, p=.765), respectively.Conclusions:The current study examined whether mood symptoms affect the relationship between auditory attention and verbal learning. Present results confirm previous research that auditory attention has a significant impact on verbal learning (Massey, Meares, Batchelor, & Bryant, 2015; Weiser, 2004). Building upon prior research, these results indicate that when accounting for auditory attention, clinicians should be aware of possible confounds of anxiety, which may artificially suppress auditory attention. In some circumstances, a differential diagnosis may require consideration that absent anxiety auditory attention may be within normal range. Continued assessment and evaluation regarding the impact of anxiety is crucial for neuropsychologists when examining performances on verbal learning.