I have submitted a manuscript that is under review by the journal Psychology and Neuroscience, and I wanted to understand if I could make this first version of the manuscript available to the people here at research gate.
I recommend you write to the editor of the journal and ask if it is possible to share the manuscript just to make sure. Then, you can add the file to RG as a preprint.
Usually in journal publication policies, you can find this:
"Authors have permission to enter into additional contracts separately, for non-exclusive distribution of the version of the paper published in this journal (e.g., publishing in an institutional repository or as a book chapter), with acknowledgment of authorship and initial publication in this journal."
The text above is from our Revista Cientifica Biofarma