As discussed in chapter 1, we have used a score of 27 on the APSD as our cut-off point for a classification of psychopathic tendencies in many of our studies.
I've noticed this elsewhere (looking into ADHD), Psychiatrists seem interested in developing a criteria which seems naturally continuous, and then using a cutoff without arguing for why that's a good idea. I can easily imagine that some conditions are discrete, but many of them must be pretty continuous. It seems like they would lose a lot of statistical power with a cutoff approach.
Is this purely a historical accident? Is it because discrete judgments seem more authoritative? Is there an actual good reason that I can't see? What's going on here? This sort of thing makes me suspicious of the quality of psychiatry research.
A lot easier to work with? Is running a linear regression that hard?
Yep. Remember, every step of statistical sophistication is a filter. Some people who understand means will not understand correlations; some people who understand correlations will not understand standard deviations; some people who understand deviations will not understand t-tests; and everyone won't understand p-values judging by how often I see the '5% odds this was due to chance' fallacy even here on LessWrong. Linear regression is another step on top of that, etc.
The courts thing makes more sense, though I'd be surprised if courts couldn't understand percentiles fairly well ("more psychopathic than 94 percent of the population").
What does that even mean for the court, though? They aren't judging the overall population; heck, criminal defendants aren't even a sample from the overall population but are heavily biased towards particular places, races, IQs, and annual incomes etc etc.
...Another theory is that, the first success stories of identifying things in psychiatry and treating them came from things which are discrete so there's a tradition of treating things that way, and the contrary evide
Deviant but not necessarily diseased or dysfunctional minds can demonstrate resistance to all treatment and attempts to change their mind
Maybe they need better treatments. Has anyone asked psychopaths - "How would you convince a psychopath like you to stop doing X?" Has anyone let psychopaths try? Aren't they the master manipulators? They even have a readily available model of a psychopath to test out the theory on. How convenient! Sufficiently motivating a psychopath with rewards for changing the mind of another psychopath might be an effective treatment for the first psychopath. Did they try that treatment?
I don't mean to be pissy, but "resistance to all treatments and attempts to change their mind" strikes me as a huge claim. Ruling out the "it's something I didn't think of" theory is one of the worst cognitive biases.
Maybe they need better treatments. Has anyone asked psychopaths - "How would you convince a psychopath like you to stop doing X?" Has anyone let psychopaths try? Aren't they the master manipulators? They even have a readily available model of a psychopath to test out the theory on. How convenient! Sufficiently motivating a psychopath with rewards for changing the mind of another psychopath might be an effective treatment for the first psychopath. Did they try that treatment?
Something like it was tried in Canada, in the sixties, with LSD, in a four year experiment where a group of 30 psychopaths were, at least apparently, temporarily reformed through unconventional means.
This strange and unique program was obliquely referenced in the top post:
......operated for over a decade in a maximum security psychiatric hospital and drew worldwide attention for its novelty. The program was described at length by Barker and colleagues…The results of a follow-up conducted an average of 10.5 years after completion of treatment showed that, compared to no program (in most cases, untreated offenders went to prison), treatment was associated with lower violent recidivism for non-psychopa
The thing is, you are invoking the evolution demon as soon as you do that. You may end up with a more dangerous monster.
"On the trail of the elusive successful psychopath", Francis et al 2014
......Do successful psychopaths – people who possess the core traits of psychopathic personality but who achieve marked societal success in one or more domains – really exist? Indeed, some scholars have argued that the very concept of successful psychopathy is an ‘oxymoron’ because ‘by definition, to be afflicted with a personality disorder (e.g. psychopathy) one must have pathological symptoms that cause impairment in multiple domains of one’s life’ (Kiehl & Lushing, 2014)
Could this have anything to do with our culture's fascination with cunning, charming, arrogant characters without much of a moral compass? (Wait, is that actually culture-specific, or are tricksters typically sympathetic?)
Given the evidence for psychopaths’ dominant response styles and differing response thresholds, increasing the salience and consistency of punishments would be important elements in these interventions.
I would say the exact opposite! Drop the punishments since those don't work well, and reward desired behaviors instead.
Holy moly, frea...
Questions for both you and Tenoke:
How do you reward/reinforce desired behaviors in cases when the desired behavior is normal rather than exceptional? If I give my child a reward every time they're not hitting their sibling, isn't this isomorphic to taking away their expected reward every time they do hit their sibling (a punishment)? Worse, if I only started this "reward basic lack of misbehavior" scheme when I noticed that a child was prone to misbehavior, isn't that just going to be perceived as "[I/my sibling] got a new nearly-continuous reward for misbehaving enough to trigger parental notice"?
Then, since it's significantly harder to apply reinforcements than punishments to badly-behaved children, wouldn't we expect to see a strong correlation between reinforcement and good results (or between punishment and bad results) regardless of how effective each was at changing behavior?
Fascinating stuff. You seem well read in the subject and I'm not, so let me ask a couple of questions my psychiatry professors weren't for some reason interested in answering in the course a couple of weeks ago. So no blame on you if you can't answer.
Why is psychopathy not even mentioned in the DSM? How does this affect the research and is it taken seriously in mainstream psychiatry? I understand ASPD is in the DSM, but it's not even nearly the same construct and has comorbidities atypical for psychopathy.
Psychopaths are supposed to be expert liars. How do...
"What can we learn about emotion by studying psychopathy?", Marsh 2013:
...Psychopathy affects both children and adults. Markers of psychopathy may emerge early in childhood (Glenn et al., 2007; Wang et al., 2012), are moderately reliable predictors of adult psychopathy (Lynam et al., 2008), and the core affective features of psychopathy appear to be highly heritable (Larsson et al., 2006). The heritability coefficient of the core callous and unemotional features has been estimated to be at least 0.43 (Larsson et al., 2006) and as high as 0.71 (Vid
Huh, I always assumed I was a psychopath, but now that seems like giving myself way too much credit for being mildly odd. Is there any test online to check?
"What can we learn about emotion by studying psychopathy?", Marsh 2013:
Psychopathy affects both children and adults. Markers of psychopathy may emerge early in childhood (Glenn et al., 2007; Wang et al., 2012), are moderately reliable predictors of adult psychopathy (Lynam et al., 2008), and the core affective features of psychopathy appear to be highly heritable (Larsson et al., 2006). The heritability coefficient of the core callous and unemotional features has been estimated to be at least 0.43 (Larsson et al., 2006) and as high as 0.71 (Viding et al., 2005, 2008). An individual's risk for engaging in antisocial behavior during childhood or adulthood can be increased by any number of life history events, including trauma exposure, low socioeconomic status, or delinquent peer groups (Lynam et al., 2008), but these factors do not seem to precipitate the emergence of psychopathic traits in children (often termed callous-unemotional traits). In fact, callous-unemotional traits may paradoxically serve as a protective factor against parental maltreatment: among children with callous-unemotional traits, there is little correspondence between the quality of parenting that children receive and the severity of their antisocial behavior problems (Wootton et al., 1997). Instead it appears that life stressors that result in heightened stress responding represent a distinct etiological route toward antisocial behavior (Blair, 2001). Among children without high levels of callous-unemotional traits, parental maltreatment is associated with increased antisocial behavior (Wootton et al., 1997). In addition, antisocial behavior in the absence of callous-unemotional traits does not appear to be highly heritable, supporting the role of environmental stressors in leading to antisocial behavior in the absence of callous-unemotional traits (Viding et al., 2005, 2008).
...Although Cleckley's descriptions of psychopathy reflect a psychodynamic orientation, his observations are consistent with more recent experimental data assessing fear responding in psychopathy. A focus on fear responding emerged from the observation that psychopathic offenders are particularly likely to re-offend, suggesting that the threat of future punishments is not sufficiently motivating for them (Corrado et al., 2004; Hare, 2006). Fear is, in essence, the state that accompanies the anticipation of an aversive outcome (i.e., punishment) and promotes avoidance and escape behaviors (Stein and Jewett, 1986; Panksepp, 1998; LeDoux, 2000). Fear being the emotion that promotes avoidance of behaviors that result in punishment (LeDoux, 2003), it is ostensibly is the mechanism by which punishing criminal behavior serves to deter it. Early hypotheses proposed that dysfunctional fear responding renders psychopaths less likely to avoid engaging in criminal behaviors that result in punishments like imprisonment, and were supported by laboratory findings that psychopaths are less likely to modulate their behavior in response to anticipated punishments ranging from electrical shock to loss of points in a computer game (Lykken, 1957; Hare, 1966; Newman and Kosson, 1986; Blair et al., 2004).
Abundant psychophysiological research supports the notion that psychopaths' responses to the threat of an aversive outcome are muted. Psychopathy impairs anticipatory skin-conductance responses (Lykken, 1957; Aniskiewicz, 1979; Herpertz et al., 2001; Birbaumer et al., 2005; Rothemund et al., 2012), fear-potentiated startle responses (Patrick et al., 1993; Levenston et al., 2000; Herpertz et al., 2001; Rothemund et al., 2012), and contraction of the corrugator muscle underlying the brows (Herpertz et al., 2001; Rothemund et al., 2012) during threat anticipation. Psychopathy also impairs aversive classical conditioning (Flor et al., 2002) as well as other fear-relevant responses such as the recognition of fear from the face, body, and voice (Marsh and Blair, 2008; Dawel et al., 2012). These differences are particularly evident for psychopathic offenders characterized as “primary” psychopaths who exhibit the core callous and unemotional personality features of the disorder (Lykken, 1957; Aniskiewicz, 1979; Dawel et al., 2012). This is in contrast to “secondary” psychopaths, in whom antisocial behavior may primarily reflect social disadvantage or maltreatment and who may present with increased anxiety (Newman et al., 2005; Kimonis et al., 2012). Finally, both anecdotal reports and empirical evidence indicate that subjective experiences of fear are reduced in psychopathy
...There is very little evidence available that describes other types of emotional reactions in psychopathy, although what evidence exists suggests that disgust responding remains intact, and there is little evidence for consistent impairments in happiness or surprise (Marsh and Blair, 2008; Marsh et al., 2011; Dawel et al., 2012). One emotion for which the present literature is genuinely ambiguous is sadness, with meta-analytic findings generally showing some deficits in recognizing sadness expressions in psychopathy, albeit less consistently and with generally smaller effect sizes than for fear. Very little literature explores sadness responses in psychopathy in other contexts, and results from these studies are equivocal (e.g., Blair et al., 1995; Brook and Kosson, 2013) In general, the neurobiological basis of sadness is not as well understood as that of fear, and further development of the neurocognitive basis of sadness may be required to develop targeted tasks assessing it in psychopaths....From a societal perspective, understanding empathic deficits for others' fear may be the most important question of all that the study of psychopathy helps to answer. Although amygdala lesion cases can illuminate the amygdala's role in fear, because these lesions usually occur in late adolescence or adulthood, their effects on the development of other brain regions and behavior is more limited. This may be why amygdala lesions in adulthood are not associated with heightened aggression, whereas the case of psychopathy suggests a strong relationship between developmental deficits in fear and aggression. Fear plays an important role in preventing or ending aggression during social encounters (Blair, 1995, 2005b), and fearful emotional facial expressions elicit empathic concern and the desire to help from people who perceive them, even subliminally (Marsh and Ambady, 2007). The rationale for much research on psychopathy is that individuals with this disorder are responsible for a disproportionate amount of suffering, as they engage in a variety of antisocial, criminal, and violent behaviors that cause others distress and fear (Hare, 1993; Rutter, 2012). There is limited evidence that failure to exhibit empathic responses to others' pain is related to lower self-reported empathic concern or aggressive or antisocial behavior (Singer et al., 2004, 2006). In contrast, the evidence linking the failure to exhibit empathic responses to others' fear, both on a neural and a behavior level, is abundant. Psychopaths, in whom the failure to recognize others' fear or to generate empathic activation in the amygdala and autonomic nervous system is a hallmark feature, exhibit profound impairments in empathic concern for others and notoriously commit antisocial acts. Thus, as important as the study of psychopathy is for answering fundamental psychological and neuroscientific questions about the nature of emotion and empathy, an improved understanding of emotion and empathy as they pertain to psychopathy may be critical to developing improved means of ameliorating psychopaths' harmful effects on others.
Deviant but not necessarily diseased or dysfunctional minds can demonstrate resistance to all treatment and attempts to change their mind (think No Universally Compelling Arguments; the premier example are probably psychopaths - no drug treatments are at all useful nor are there any therapies with solid evidence of even marginal effectiveness (one widely cited chapter, “Treatment of psychopathy: A review of empirical findings”, concludes that some attempted therapies merely made them more effective manipulators! We’ll look at that later.) While some psychopath traits bear resemblance to general characteristic of the powerful, they’re still a pretty unique group and worth looking at.
The main focus of my excerpts is on whether they are treatable, their effectiveness, possible evolutionary bases, and what other issues they have or don’t have which might lead one to not simply write them off as “broken” and of no relevance to AI.
(For example, if we were to discover that psychopaths were healthy human beings who were not universally mentally retarded or ineffective in gaining wealth/power and were destructive and amoral, despite being completely human and often socialized normally, then what does this say about the fragility of human values and how likely an AI will just be nice to us?)
As usual in my 'notes' articles, the following is a series of excerpts and citations; if any interest you, leave a comment and I will try to jailbreak a copy for you or failing that, post a request on the research help page.
1 Psychopathy
The Psychopath: Emotion and the brain, Blair et al 2005:
Long section summary:
More on the ADHD correlation:
A possible overall picture:
Snakes in Suits: When Psychopaths Go To Work, Babiak & Hare 2006:
“A Genetic Factor Explains Most of the Variation in the Psychopathic Personality”, Larsson et al 2006:
Handbook of Psychopathy, ed. Christopher Patrick 2005
This is interesting since out of 500, the usual American base rates would predict not 1 but >10 psychopaths. Is this all due to the tribal and closely knit nature of more aboriginal societies, or could Eskimo society really have been selecting against psychopaths while big modern societies give scope for their talents & render them more evolutionarily fit? This may be unanswerable until the relevant genes are identified and samples of gene pools examined for the frequencies.
“Treatment of Psychopathy: A Review of Empirical Findings”, Harris & Rice 2006; from Handbook of Psychopathy 2005:
The later Handbook paper, “Risk for Criminal Recidivism: The Role of Psychopathy” (Douglas et al), also has useful critical comments on meta-analyses including the Salekin meta-analysis.
Conclusion:
The evolutionary hypothesis of psychopathy is striking (eg. it’s partially hereditable; or, sex offenders who target post-pubertal women have the highest PCL-R scores compared to any other subdivision of sex offenders), but not immediately relevant. It’s discussed a little skeptically in the chapter “Theoretical and Empirical Foundations” in the Handbook.
“Psychopathy and Personality”, Lynam & Derefinko, Handbook:
“Psychopathy and DSM-IV Psychopathology”, Handbook:
“Neuroanatomical Bases of Psychopathy”, Handbook; summary:
“Understanding Psychopathy: The Cognitive Side”
[Irrational, or just higher valuing of rewards/lower fearing of injury?]
“The”Successful" Psychopath: Adaptive and Subclinical Manifestations of Psychopathy in the General Population", Hall & Benning, Handbook
“Psychopathy and Aggression”, Porter & Woodworth; Handbook
“Toward the Future: Translating Basic Research into Prevention and Treatment Strategies”, Seto & Quinsey: