Table 2

Multiple linear regression analysis using specific symptom assessments for anhedonia and anxiety

CoefficientEstimateStd. Errort(50)P
DV: Goal-directed behavior
Anhedonia (SHAPS-C)−0.00770.0039−1.9800.053~
Trait anxiety (STAI-Y2)−0.00540.0025−0.0210.983
Depression severity (HAM-D)0.00260.00490.5180.607
DV: Reward-evaluation
Anhedonia (SHAPS-C)−0.04550.3243−0.1400.889
Trait anxiety (STAI-Y2)0.41400.21181.9540.056~
Depression severity (HAM-D)−0.56020.4111−1.3630.179
DV: Delta–beta coupling
Anhedonia (SHAPS-C)−0.04160.0186−2.2390.030*
Trait anxiety (STAI-Y2)0.01690.01221.3970.169
Depression severity (HAM-D)0.01070.02360.4510.654
DV: Theta–gamma coupling
Anhedonia (SHAPS-C)−0.02040.0350−0.5810.564
Trait anxiety (STAI-Y2)0.04920.02282.1510.036*
Depression severity (HAM-D)−0.06190.0444−1.3930.170
CoefficientEstimateStd. Errort(50)P
DV: Goal-directed behavior
Anhedonia (SHAPS-C)−0.00770.0039−1.9800.053~
Trait anxiety (STAI-Y2)−0.00540.0025−0.0210.983
Depression severity (HAM-D)0.00260.00490.5180.607
DV: Reward-evaluation
Anhedonia (SHAPS-C)−0.04550.3243−0.1400.889
Trait anxiety (STAI-Y2)0.41400.21181.9540.056~
Depression severity (HAM-D)−0.56020.4111−1.3630.179
DV: Delta–beta coupling
Anhedonia (SHAPS-C)−0.04160.0186−2.2390.030*
Trait anxiety (STAI-Y2)0.01690.01221.3970.169
Depression severity (HAM-D)0.01070.02360.4510.654
DV: Theta–gamma coupling
Anhedonia (SHAPS-C)−0.02040.0350−0.5810.564
Trait anxiety (STAI-Y2)0.04920.02282.1510.036*
Depression severity (HAM-D)−0.06190.0444−1.3930.170

Two sets of multiple linear regression analyses were run, one set using behavioral metrics as the dependent variable (goal-directed behavior and reward-evaluation) and one set using cross-frequency coupling (delta–beta coupling and theta–gamma coupling). Delta–beta coupling and goal-directed behavior are shaded in green given their association in previous analysis, and theta–gamma coupling and reward-evaluation are shaded in purple. The independent variables for these analyses were clinical assessments specific to anhedonia (SHAPS-C), anxiety (STAI-Y2, trait), and overall depression severity (HAM-D). N = 53. *P < 0.05, ~P < 0.10. The hypothesized relationships are shared in gray and the font is bold.

Table 2

Multiple linear regression analysis using specific symptom assessments for anhedonia and anxiety

CoefficientEstimateStd. Errort(50)P
DV: Goal-directed behavior
Anhedonia (SHAPS-C)−0.00770.0039−1.9800.053~
Trait anxiety (STAI-Y2)−0.00540.0025−0.0210.983
Depression severity (HAM-D)0.00260.00490.5180.607
DV: Reward-evaluation
Anhedonia (SHAPS-C)−0.04550.3243−0.1400.889
Trait anxiety (STAI-Y2)0.41400.21181.9540.056~
Depression severity (HAM-D)−0.56020.4111−1.3630.179
DV: Delta–beta coupling
Anhedonia (SHAPS-C)−0.04160.0186−2.2390.030*
Trait anxiety (STAI-Y2)0.01690.01221.3970.169
Depression severity (HAM-D)0.01070.02360.4510.654
DV: Theta–gamma coupling
Anhedonia (SHAPS-C)−0.02040.0350−0.5810.564
Trait anxiety (STAI-Y2)0.04920.02282.1510.036*
Depression severity (HAM-D)−0.06190.0444−1.3930.170
CoefficientEstimateStd. Errort(50)P
DV: Goal-directed behavior
Anhedonia (SHAPS-C)−0.00770.0039−1.9800.053~
Trait anxiety (STAI-Y2)−0.00540.0025−0.0210.983
Depression severity (HAM-D)0.00260.00490.5180.607
DV: Reward-evaluation
Anhedonia (SHAPS-C)−0.04550.3243−0.1400.889
Trait anxiety (STAI-Y2)0.41400.21181.9540.056~
Depression severity (HAM-D)−0.56020.4111−1.3630.179
DV: Delta–beta coupling
Anhedonia (SHAPS-C)−0.04160.0186−2.2390.030*
Trait anxiety (STAI-Y2)0.01690.01221.3970.169
Depression severity (HAM-D)0.01070.02360.4510.654
DV: Theta–gamma coupling
Anhedonia (SHAPS-C)−0.02040.0350−0.5810.564
Trait anxiety (STAI-Y2)0.04920.02282.1510.036*
Depression severity (HAM-D)−0.06190.0444−1.3930.170

Two sets of multiple linear regression analyses were run, one set using behavioral metrics as the dependent variable (goal-directed behavior and reward-evaluation) and one set using cross-frequency coupling (delta–beta coupling and theta–gamma coupling). Delta–beta coupling and goal-directed behavior are shaded in green given their association in previous analysis, and theta–gamma coupling and reward-evaluation are shaded in purple. The independent variables for these analyses were clinical assessments specific to anhedonia (SHAPS-C), anxiety (STAI-Y2, trait), and overall depression severity (HAM-D). N = 53. *P < 0.05, ~P < 0.10. The hypothesized relationships are shared in gray and the font is bold.

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