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. Author manuscript; available in PMC: 2025 Apr 28.
Published in final edited form as: Psychopharmacology (Berl). 2024 Nov 8;242(3):593–615. doi: 10.1007/s00213-024-06711-9

Table 1. Factor loadings for each variable used in EFA.

Bolded values denote loadings considered to be important for each factor.

Factor
1 2 3
Potential Behavioral Dimension Appetitive/Motivation Perseverative/Habitual Consummatory/Hedonic
Variable
FI-FR Chain: Baseline FI Responses (per 5m) 0.891 * −0.112 0.0073
FI-FR Chain: Baseline Cocaine Intake (mg/kg/5m) 0.087 −0.156 0.541 δ
Post-ABST Δ in FI Responses 0.823 * 0.236 0.0369
Extinction (Day 1) Responses 0.131 0.898 * −0.191
Reinstatement Responses (Yohimbine-Induced) 0.127 0.733 * 0.0358
Binge Cocaine Intake (mg/kg/16hrs) −0.119 −0.0723 0.989 *
Progressive Ratio Responses 0.723 * 0.309 δ 0.0121
Eigenvalue 2.666 1.759 1.247
Proportion of Total Variance 29.3 21.6 18.8
*

Strong loading (>0.6)

δ

Moderate loading (>0.3)