Research: The effects of pornography

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The harm thought to be caused to minors by pornography and other "inappropriate content" is not supported by any properly controlled outcome studies or other scientific evidence. Morality and socialization of youth are instead the rationales given for policing this content. Throughout much of the professional literature, preventing minors from accessing this material is still assumed, a-priori, to be a rightful and realistic goal. Many of the reports commissioned by governments and NGOs use correlational studies, which do not establish cause and effect, and are plagued with negative value judgments concerning "high risk behaviors" and "permissive attitudes". This lack of evidence casts doubt upon the use of imprecise and expensive internet filters by central governments, and the insistence of some governments upon self-regulatory ISP models.

• Researchers, Educators and Therapists in Support of Appellee in United States v. Playboy Entertainment Group (published March, 2003). Brief Amici Curiae of Sexuality Scholars. No. 98-1682 (Oct. Term 1998), p. 8.

  "Most scholars in the field of sexuality agree that there is no basis to believe sexually explicit words or images … in and of themselves cause psychological harm to the great majority of young people."

• NCAC (March, 2001). "White Paper Submitted to the Committee on Tools and Strategies for Protecting Kids From Pornography and Their Applicability to Other Inappropriate Internet Content.

  "In 1986, the Surgeon General's Workshop on Pornography and Public Health concluded that there is no scientific basis to believe that minors are adversely affected by pornography. Indeed, it noted that many psychologists believe young children are unaffected by pornography because they lack "the cognitive or emotional capacities needed to comprehend it." In the end, these experts said, "it is really rather difficult to say much definitive about the possible effects of exposure to pornography on children." The more widely publicized majority report that same year of the Attorney General's Commission on Pornography (the Meese Commission) did not disagree. The Meese Commission acknowledged that its concerns about minors' access to pornography were based on morality, not science. In the Playboy Entertainment case, expert witnesses for both the government and Playboy testified at trial that there is no empirical body of evidence of harm to minors from exposure to pornography. [...] Dr. Richard Green, founding president of the International Academy of Sex Research and author of Sexual Science and the Law, testified that none of the available literature—including comparisons of the amount of erotica available in different countries, studies of sex offenders, laboratory experiments on pornography and violence, clinical experience worldwide, and research on people who as children had witnessed the "primal scene" of sexual intercourse—supports the notion that exposure to sexual explicitness is psychologically harmful to youth. In 25 years of clinical practice, Dr. Green had not encountered psychological problems stemming from pornography."

• Smahel, D., H. Machackova, G. Mascheroni, L., Dedkova, E., Staksrud, K., Ólafsson, S. Livingstone and U. Hasebrink (2020). EU Kids Online 2020: Survey results from 19 countries, EU Kids Online, London School of Economics, London.

  "being exposed to sexual images can be perceived both as a positive and a negative experience, depending on the context and the individual child. How sexual images are perceived can also be influenced by intentionality – the response to exposure due to seeking out sexual images could differ from unexpected exposure [...] in most of the countries, most of the children who saw some sexual image were neither upset nor happy (Ave = 44%), ranging between 27% (Switzerland) and 72% (Lithuania). In contrast, between 10% (Lithuania) and 40% (Switzerland) of the children were fairly or very upset (Ave = 22%), while feeling happy after seeing sexual images was reported by a similar number of children across the countries, ranging between 3% in Estonia and 39% in Spain."

Excerpt Graphic Library

The Excerpt Graphic Library on Youth Sexuality has some useful information related to this topic. These can be accessed, saved and uploaded into shortform social media debates where character limits are in force.

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  Declining rates of sexual activity among youth (YRBS)

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  Various research on Teen Pregnancy correlational nonsense

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  Sexual Repression - effects on the young

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  Sexual Behavior in youth and its effects

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  Reading on child sexuality

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  Some reading on the effects of intimacy

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  Jane Rule on treatment of youth

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  NCAC: Justification for protecting children from porn has always been moral

Competences are also somewhat related:

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  Basic brain aging primer

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  Teen Brain research summary

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  Age chauvinism

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  BJ Casey

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  Joseph Bronski

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  Full Brain Size and adult-like competences in early childhood

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  Development of reasoning ability in early childhood (Moshman, 2005)

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  Early development of brain - Del Giudice

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  White and Gray Matter levels - Del Giudice (2017)

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  Bethlehem et al, 2022, brain volumes and matter levels by age

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  Giedd 1999 brain matter curves by age

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  Mills et al: Adolescent brains indistinguishable from adult. Variance in gray matter between individuals is far greater than any changes over time.

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  John Raven - Intelligence hits a peak in the mid teens, then plateaus and declines (the decline may have been at least in part due to poorer education in the interwar period).

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  John Raven - Intelligence hits a peak in the mid teens, then plateaus (note improvement in scores obtained in the 1970s)

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  Moshman on common fallacies of teen brain development

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  Moshman continued

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  Moshman continued

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  Laurence Steinberg (2008)

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  Epstein reviewed, plus other references - raw intelligence peak 13-15 y/o

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  2020 meta-analysis on the age of Thelarche (breast budding in girls - start of puberty)

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  Conclusions of the aforementioned 2020 meta-analysis

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  Physical development - Tanner stages reached considerably earlier than commonly supposed

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  Physical development - Ages of pubertal development lower than commonly stated

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  Girls developing sexual features almost completely by 11