Author refers to the person or persons responsible for a technical paper; a literature search via an author's name can be profitable source of additional references.
In the field of psychology, an author typically refers to a person who has written a research paper, article, or book on a particular topic. Authors are responsible for conducting research, collecting and analyzing data, and writing up the results of their work in a clear and concise manner.
For example, an author might be a researcher who has conducted a study on the effects of a particular therapy on depression symptoms. They would be responsible for designing the study, recruiting participants, administering the therapy, and analyzing the data to determine whether the therapy was effective. They would then write up their findings in a research paper or article and publish it in a scientific journal or other publication.