From Wikipedia:
Psychopaths do not feel emotions as deeply as normal people. Though they are not completely unemotional, their emotions are so shallow that some clinicians have described them as mere "proto-emotions: primitive responses to immediate needs."[37]
Psychopaths do not feel fear as deeply as normal people and do not manifest any of the normal physical responses to threatening stimuli. For instance, if a normal person were accosted in the street by a gun-wielding mugger, he might sweat, tremble, lose control of his bowels or vomit. A psychopath would feel no such sensations, and are often perplexed when they observe them in others.[38] Psychopaths' lack of fear make them often reckless risk-takers. This is not to say they are oblivious to the potential consequences of their actions. Rather, the thought of pain and punishment does not provoke an emotional reaction in them and thus has a weak restraining effect.[39]
Psychopaths do not feel love and are incapable of forming emotional bonds with people. Though a psychopath can sometimes charm a person into being infatuated with him, he cannot reciprocate the feelings, only feign them. Though they derive pleasure from sexual encounters, these relations are superficial and impersonal.[40]
Although psychopaths do not feel deep emotions, they often claim to experience them. However, their fabricated descriptions of their fictitious emotions are often flawed. Their choice of words may be incongruous with the context or their tone of voice. For instance, a psychopath may express grief over the recent death of a parent, but deliver his words in a monotone voice that betrays his indifference. Psychopaths may often put on short-lived, dramatic displays of emotion, such as fits of rage, only to quickly revert to a calm state moments later. This often leaves some observers with the impression that they are play- acting.[41]
In conversations, psychopaths cannot intuitively understand the impact their words should have on others or themselves. They instead read their listeners' reactions for cues as to how they should emote. For instance, Hare writes of a convicted murderer who described his murders in a totally dispassionate, bland manner until he noticed the horrified expression of the interviewer, at which point he started feigning remorse and distress over his crimes.[42]
Researchers have conducted brain scans on psychopaths while exposing them to emotionally-charged words such as "rape", "murder", and "love". In a normal person, these words will provoke activity in the limbic system, which governs emotions. Psychopaths showed no such activity. They react to emotionally-charged words as if they were neutral words (e.g. "tree", "chair", "spoon"). They do, however, show activity in the brain areas associated with language processing, suggesting that their response is more cognitive than emotional.
Does this seem accurate?
On a day to day basis, how do you experience emotions? Can you identify them? How long do they typically last? Do you ever feel physical symptoms such as increased heart rate or breathing?