fig3
![Exploring the comorbidity between internalizing/externalizing dimensions and cognitive disengagement syndrome through twin studies: a narrative review](https://image.oaes.cc/393ff4e8-aac6-4c85-8a65-b2b2b6b9b492/jtgg4051.fig.3.jpg)
Figure 3. Common pathway model. Observed variables are depicted in squares and latent variables in circles. Ac: Additive genetic factors common to the phenotypes; Cc: shared environmental factors common to the phenotypes; Ec: unique environmental factors common to the phenotypes; A: additive genetic factors specific to the phenotypes; C: shared environmental factors specific to the phenotypes; E: unique environmental factors specific to the phenotypes; L: common latent susceptibility factor.