I realized that I need to explain better what I mean when I use those terms.
For example, not long ago, I wondered whether the forum user @taz could be a psychopath because of his behavior. A came to the conclusion that he is not a psychopath, which led to him acquiring the "Not a Psychopath Award" (which is kinda funny).
➡️ https://www.farsightprime.com/forums/general/79612-can-you-pet-the-aliens
The Psychopath
Definition: "Psychopathy, or psychopathic personality, is a personality construct characterized by impaired empathy and remorse, and persistent antisocial behavior, along with bold, disinhibited, and egocentric traits. These traits are often masked by superficial charm and immunity to stress, which create an outward appearance of normality."
The key to understand psychopathy is the immunity to stress. For a normal, empathetic person, negative emotions are stress. Negative emotions feel uncomfortable and drain your energy over time. This is not the case with a psychopath. A psychopath is immune to the effect of negative emotions, which, from the viewpoint of the psychopath, is an advantage.
Also, observing others in a negative emotional state normally creates a connection that shares the negativity. People call that compassion. The purpose of compassion is information. Negative emotional states require action, in most cases the action of self-defense. Sharing that state enables the group to defend themselves against a negative external influence. The primary psychopath doesn't share that connection. In that sense, psychopathy is a disability.
When I confronted @taz, I probed for his emotional reaction to a certain stimulus, and that told me that he is not a psychopath. He is able to create and feel the connection.
The Sociopath
Definition: "The term sociopathy may have been first introduced in 1909 in Germany by biological psychiatrist Karl Birnbaum and in 1930 in the US by educational psychologist George E. Partridge, as an alternative to the concept of psychopathy. It was used to indicate that the defining feature is violation of social norms, or antisocial behavior, and may be social or biological in origin."
I use that term not as a synonym for psychopathy, but to describe a person that feels good when others suffer. A sociopath needs the suffering like others need food. Where the psychopath just feels nothing, and also doesn't care to feel anything, the sociopath wants to feel something. But in contrast to normal people, who feel good when positive emotions are shared, a sociopath feels good when negative emotions are shared (he creates loosh out of negativity).
This eventually leads to the sociopath creating the suffering. A psychopath doesn't need that. Psychopaths can blend in without feeling anything. Sociopaths suffer when they blend in, because feeling positive emotions is poison for them.
The Secondary Psychopath
Definition: "A secondary psychopath is someone who displays the impulsivity, aggression, and antisocial behavior associated with psychopathy, but whose traits stem largely from trauma, neglect, or environmental adversity rather than genetics alone."
This means that secondary psychopaths are born normal, but become a psychopath later on in life because of external influences. This works because of psychological dissocation. When a pain becomes unbearable, the body can dissociate from feeling it. But for people who aren't born psychopaths, this means that the body must compensate the lack of emotion. Most people fall back on humor. Which, as far as I'm concerned, is not natural, but induced through genetic manipulation.
The Secondary Sociopath
As far as I know, there is no secondary sociopathy. While inducing "Schadenfreude" through genetic manipulation is done by sociopaths, the result isn't a person that feels like a sociopath. Instead, a normal person that feels joy when others suffer still recognizes that something is not right, which eventually escalates into a nervous breakdown. So, they solve this problem by inducing secondary psychopathy through dissociation to make people not feel that something is wrong.