I think there were fewer psychological problems in the past. If you look at the mouse Utopia experiment that might ‘prove’ this to you that when in an unnaturally large civilisation with freedom of movement the relationships with one another change and eventually the psyche of a number of the mice breaks down. It’s likely humans in the wild are more capable of a ‘realistic’, or at least self beneficial outlook on life.
It’s difficult to know because there’s not much data to compare to. The ultimate would be brain scans of isolated tribal people without their knowledge or possibly an encyclopaedic observation of their behaviours and interactions with brain scans to compare. Even then, for a single human to come close to understanding the interactions of a whole group might be a stretch, it’s genuinely impossible enough to understand the mind of one individual. Really it could be that only a supercomputer consciousness simulation could ever ‘understand’ exactly what causes and constitutes a ‘psychological problem’ANSWERS： People to go for for answers have been around a long time. They just were known by different names; shaman, witch doctor, oracle, prophet, guru, seerer, teacher, etc.
As for psychological problems? That’s all relative to time, place, culture, society, etc. Usually referred to something outside the “norm” of the times. But then some of these folks were seen as special so they were looked up to rather than seen as a problem. Hearing voices, for example, was seen as a gift; being able to communicate with the unseen.
As for the “rejects” or those that didn’t fit in? The story is the same and again just relative to the times.ANSWERS： In ancient days psychological disorders were fewer in number and types. In Ayurveda several oils, herbs and procedures such as Shirodhara were used for treating mental illnesses. In those days saints and Ayurvisharadas were working as doctors. Some saints used Tantra and mantra therapy for mental illnesses. Some saints also used counselling, prayer and vibhuti to cure people. Those saints who were adopting these treatment methods by understanding the core principle and philosphy behind them were able to treat patients successfully, other's didn't .But for serious mental illnesses there was no cure. Such people were abondened by the society. Some half mad people were considered mystics by people in those days. The treatment of the mentally ill people was marred with superstitions in older days.ANSWERS： I don't know which video it is exactly, but I when I was watching a talk by ‘Sadhguru’ he said that in ancient times in India people with mental illness were shackled to a wall until their symptoms receded.
I assume this would be a treatment more suited for psychosis than for example, depression. (Maybe it worked by forcing people to face their hallucinations and delusions head on and so would enable them to accept them? IDK)