I am looking for any studies used by the government to support
anti-pornography legislation.

Hi, 

Found quite a few out there, with a very wide range of topics, mostly
concerned with the level of harm that pornography presents to the
public. Legislation can not be arbitrarily passed (as I?m sure you
know) about any subject matter that could be seen as imposing on the
right to freedom of speech without showing/proving that the subject
matter presents a level of harm to the public in some form. Subject
matters such as Child pornography are fairly easy to show ?harm? to
the child and the general public as well. Full consenting adults in
the making, producing, selling and purchasing of the films and shows,
is quite a different issue.

So, here is a cross section of what I found. 

Age and perceived effects of erotica-pornography: a national sample study.

In the spring of 1970, a national sample survey of 2486 adults (aged
20-80) was studied to ascertain U.S. public attitudes toward and
experience with erotic materials. Twelve items measured whether or not
those interviewed believed that looking at or reading sexual materials
had certain effects on themselves or others. Initial description of
the results revealed a considerable diversity of opinion. This report
provides a multistage typology of those item responses, beginning with
characterization of items as positive, neutral, or negative in effect.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=1212090&dopt=Abstract

Congressional Testimony
"Internet Child Pornography"
In addition, in November 2000, Dr. Andres E. Hernandez, PsyD.,
Director of the Sex Offender Treatment Program, Federal Bureau of
Prisons, FCI Butner, presented the results of his study of child
pornography offenders entitled, Self-Reported Contact Sexual Offenses
by Participants in the Federal Bureau of Prisons' Sex Offender
Treatment Program: Implications for Internet Sex Offenders. This
study, among other things, explored the correlation between child
pornography offenses and actual child molestation.
http://www.fbi.gov/congress/congress02/heimbach050102.htm

The Science Behind Pornography Addiction
Thursday, November 18 2004 - 2:00 PM - SR 253
The Testimony of
Dr. Judith Reisman
, California Protective Parents Association
?How does this ?brain sabotage? occur? Brain scientists tell us that
?in 3/10 of a second a visual image passes from the eye through the
brain, and whether or not one wants to, the brain is structurally
changed and memories are created ? we literally ?grow new brain? with
each visual experience.?

This scientifically documented neurochemical imprinting affects
children and teens especially deeply; their still-developing brains
process emotions differently, with significantly less rationality and
cognition than the adult brain?
http://commerce.senate.gov/hearings/testimony.cfm?id=1343&wit_id=3910

Other Reading

The Activist Court: Free Speech or the Victimization of Women and Children?
Rep. Tom Osborne (NE-03)
http://www.house.gov/apps/list/speech/ne03_osborne/wc20020617.html


Ronald Reagan
The White House,
November 10, 1987.
A little over 3 years ago, I announced the creation of a national
commission to study the scope and nature of pornography in the United
States. After 14 long months of careful and objective study, including
the taking of hundreds of hours of testimony from citizens on all
sides of the issue, the Attorney General's Commission on Pornography
released its Final Report in July 1986. In that report were numerous
recommendations for changes in Federal law, many of which are
reflected in the bill I am proposing today. This bill represents one
point of a seven-point plan created by Attorney General Edwin Meese to
crack down heavily on the producers, distributors, and retailers of
obscene material.
http://www.reagan.utexas.edu/archives/speeches/1987/111087e.htm

Attorney General's Commission on Pornography (sometimes called The
Meese Report for Attorney General Edwin Meese)
http://en.wikipedia.org/wiki/Attorney_General's_Commission_on_Pornography

The Harm of Porn
http://www.fiawol.demon.co.uk/FAC/harm.htm

Civil Rights anti-pornography legislation
http://www.nostatusquo.com/ACLU/dworkin/other/ordinance/HillSilverOrd1.html


thanks, and happy holidays, 

webadept-ga

Thank you, this was very thorough and provided me with a range of
sources.  Happy holidays to you, too!