Learning Mind
Source: Learning Mind

Are you uncertain of the distinctions between a sociopath and a psychopath? If so, you are not alone. Many psychiatrists, forensic psychologists, criminologists and police officers incorrectly use the terms sociopathy and psychopathy interchangeably.

Leading experts disagree on whether there are meaningful differences between the two conditions. Those who agree that there are differences often disagree on what those differences are. I contend that there are clear and significant distinctions between psychopathy and sociopathy, and I discuss them below.

The fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), released by the American Psychiatric Association in 2013, lists both sociopathy and psychopathy under the heading of Antisocial Personality Disorders (ASPD). These disorders share many common behavioral traits which lead to the confusion between them. Key traits that sociopaths and psychopaths share include:

  • A disregard for laws and social mores
  • A disregard for the rights of others
  • A failure to feel remorse or guilt
  • A tendency to display violent or aggressive behavior

In addition to their commonalities, sociopaths and psychopaths also have their own unique behavioral characteristics and origins.  

Sociopaths tend to be nervous and easily agitated. They are volatile and prone to emotional outbursts, including fits of rage. They are more likely than are psychopaths to be uneducated and live on the fringes of society. They are sometimes unable to hold down a steady job or stay in one place for very long. It is often difficult but not entirely impossible for sociopaths to form attachments with others.

Many sociopaths are able to form an attachment to a particular individual or group, although they have no regard for society or its rules in general. Therefore, the meaningful attachments of any sociopath will be few in number and limited in scope. As a rule, they will struggle with relationships.   

In the eyes of others, sociopaths will generally appear to be very disturbed or erratic. Any crimes committed by a sociopath, including murder, will tend to be haphazard and spontaneous rather than planned. Because of their seemingly erratic behavior, sociopaths are easier than are psychopaths for both professionals and nonprofessionals to identify.               

Unlike sociopaths, psychopaths are unable to form emotional attachments or feel real empathy for others. Psychopaths tend to be aggressive and predatory in nature. They view others as objects for their amusement. Although they lack empathy, psychopaths often have disarming or even charming personalities. They are very manipulative and can easily gain people’s trust. They learn to mimic emotions, despite their inability to actually feel them, and will appear normal to unsuspecting people. Psychopaths are often well educated and hold steady jobs.

Some psychopaths are so good at manipulation and mimicry that they have families and other long-term relationships without those around them ever suspecting their true nature. When committing crimes, psychopaths carefully plan out every detail in advance and often have contingency plans in place. They will seem unflappable in a crisis.

Unlike their sociopathic counterparts, psychopathic criminals are cool, calm and meticulous. From a law enforcement perspective, the “cold-blooded” nature of psychopaths makes them very effective criminals. As such, they are generally much more difficult to identify than are sociopaths. Unfortunately, it can be very difficult to know when a psychopathic predator has targeted you for exploitation.

From a diagnostic standpoint, the etiology or cause of psychopathy is different from that of sociopathy. I contend that psychopathy is the result of “nature” (genetics) while sociopathy is the result of “nurture” (environment). Psychopathy is related to a physiological defect that results in the underdevelopment of the part of the brain responsible for impulse control and emotions (1).

Sociopathy, on the other hand, is more likely the product of childhood trauma and physical or emotional abuse. Because sociopathy appears to be learned rather than innate, sociopaths are capable of empathy in certain circumstances, and with certain individuals, but not in others.

Ultimately, psychopathy is rarer than sociopathy and it is considered to be the most dangerous of all antisocial personality disorders. Not surprisingly, many prolific serial killers, including Ted Bundy, Dennis Rader (BTK) and John Wayne Gacy, are unremorseful psychopaths. Indeed, it is estimated that nearly fifty percent of all serial killers are psychopaths.

In a separate article here, I examine our curious fascination with serial killers in fact and fiction. Click  I explore the same topic in more detail in my best-selling book Why We Love Serial Killers: The Curious Appeal of the World’s Most Savage Murders.


1) Bouchard, T.J., Jr., Lykken, D.T., McGue, M., Segal, N.L. and Tellegen, A. 1990. "Sources of human psychological differences: The Minnesota Study of Twins Reared Apart."  Science 250 (4978), pp. 223–228.

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