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	~~'''Marsh Chapel Experiment'''~~		{{short description\|A psychological experiment conducted in 1962}}

	The '''Marsh Chapel Experiment''', also known as the ~~'''~~Good Friday Experiment~~'''~~, was a study conducted ~~on Good Friday,~~ 1962, at ~~[[Marsh Chapel]] on the campus of~~ [[Boston University]]. The experiment was designed to investigate ~~whether~~ the ~~ingestion~~ of [[psilocybin]]~~—a naturally occurring~~ psychedelic compound ~~found in certain species of mushrooms—could facilitate profound~~ religious experiences. The study was led by [[Walter Pahnke]], a graduate student in theology and medicine at [[Harvard University]], under the supervision of [[Timothy Leary]] and [[Richard Alpert]], who were both professors at Harvard at the time.		== Marsh Chapel Experiment ==
			[[File:Marsh-chapel-window.jpg\|thumb\|right\|Stained glass window in Marsh Chapel]]
			The '''Marsh Chapel Experiment''', also known as the "Good Friday Experiment," was a notable study conducted in 1962 at [[Boston University]]'s Marsh Chapel. The experiment was designed to investigate the effects of [[psilocybin]], a psychedelic compound, on religious experience.

	==Background==		== Background ==
	The ~~Marsh Chapel Experiment~~ was ~~part of a larger series of studies exploring the therapeutic and spiritual potential of psychedelic substances, which were being conducted~~ by ~~Leary~~, ~~Alpert, and their colleagues~~ at ~~the~~ Harvard ~~Psilocybin Project. Pahnke's interest in~~ the ~~intersection~~ of ~~pharmacology~~, ~~psychology, and spirituality led him to design the experiment~~ to ~~specifically assess the capacity of~~ psilocybin ~~to induce~~ mystical experiences in ~~religiously predisposed individuals~~.		The experiment was led by [[Walter Pahnke]], a graduate student in theology at [[Harvard Divinity School]], under the supervision of [[Timothy Leary]], a prominent psychologist known for his research on psychedelic substances. The study aimed to explore whether psilocybin could facilitate mystical experiences in a religious setting.

	==Methodology==		== Methodology ==
	The experiment ~~involved twenty divinity students~~, ~~ten~~ of whom were ~~randomly given~~ capsules containing ~~30 milligrams of~~ psilocybin, while the other ~~ten~~ received a placebo of nicotinic acid, which can produce mild physiological effects but no psychedelic effects. The participants were not informed which substance they had received. The experiment took place in the basement of Marsh Chapel, where the participants listened to the Good Friday service conducted upstairs, through loudspeakers.		The experiment took place on [[Good Friday]], April 20, 1962, during a religious service at Marsh Chapel. Twenty volunteer participants, all of whom were students in [[theology]], were divided into two groups. One group received capsules containing psilocybin, while the other group received a placebo.

	~~==Results==~~		The participants were unaware of which substance they had ingested. They were instructed to attend the Good Friday service and report their experiences. The setting was chosen to enhance the potential for a mystical experience, as it was a solemn and spiritually significant occasion.
	~~Pahnke reported that the majority of the~~ participants ~~who received psilocybin experienced profound religious experiences, describing feelings~~ of ~~universal love, transcendence of time and space, and deep insights into the nature of existence~~. ~~In contrast, those who received~~ the ~~placebo reported much less significant~~ experiences. ~~A follow-up study conducted by [[Rick Doblin]] in 1991 found that~~ the ~~participants who had received psilocybin still considered their~~ experience ~~to be of great personal~~ and ~~spiritual significance~~.

	==~~Controversy and Impact~~==		== Results ==
	The ~~Marsh Chapel Experiment sparked considerable controversy, primarily due to concerns about~~ the ~~ethics~~ of ~~administering psychoactive drugs to~~ participants ~~without their full informed consent~~. ~~Additionally~~, ~~the involvement of Leary~~ and ~~Alpert~~, who ~~were both dismissed from Harvard in 1963 due to their controversial advocacy of psychedelic drugs, contributed to~~ the ~~experiment's notoriety~~.		The results of the experiment indicated that the majority of participants who received psilocybin reported profound religious experiences. These experiences were characterized by feelings of unity, sacredness, and transcendence. In contrast, those who received the placebo reported significantly fewer mystical experiences.

	~~Despite the controversy, the~~ Marsh Chapel Experiment is considered a landmark study in the field of [[~~psychopharmacology~~]] and ~~the psychology of religion~~. It has ~~inspired ongoing research into~~ the potential of psychedelics ~~to facilitate spiritual experiences~~ and ~~their therapeutic applications in treating a variety of mental health conditions~~.		== Significance ==
			The Marsh Chapel Experiment is considered a landmark study in the field of [[psychedelic research]]. It provided early evidence that psychedelic substances could induce experiences similar to those described in religious and mystical traditions. The study has been cited in discussions about the potential therapeutic uses of psychedelics in [[psychotherapy]] and [[spirituality]].

	==~~See Also~~==		== Criticism and Legacy ==
			While the experiment was groundbreaking, it also faced criticism. Some critics questioned the methodology, particularly the small sample size and the subjective nature of the reported experiences. Despite these criticisms, the experiment has had a lasting impact on the study of psychedelics and their role in religious and spiritual contexts.

			In recent years, there has been a resurgence of interest in psychedelic research, with studies exploring their potential benefits for mental health conditions such as [[depression]], [[anxiety]], and [[post-traumatic stress disorder]]. The Marsh Chapel Experiment is often referenced as a pioneering study in this field.

			== Related pages ==
	* [[Psychedelic therapy]]		* [[Psychedelic therapy]]
	* [[History of lysergic acid diethylamide]]
	* [[Entheogen]]
	* [[Mystical experience]]		* [[Mystical experience]]
			* [[Timothy Leary]]
			* [[Psilocybin]]

	[[Category:~~Psychology experiments~~]]		[[Category:Psychedelic research]]
	[[Category:~~Psychedelic drug research~~]]		[[Category:1962 in science]]
	[[Category:~~1962 in the United States~~]]		[[Category:Boston University]]
	~~{{psychology-stub}}~~

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'''Marsh Chapel Experiment'''

The '''Marsh Chapel Experiment''', also known as the '''Good Friday Experiment''', was a study conducted on Good Friday, 1962, at [[Marsh Chapel]] on the campus of [[Boston University]]. The experiment was designed to investigate whether the ingestion of [[psilocybin]]—a naturally occurring psychedelic compound found in certain species of mushrooms—could facilitate profound religious experiences. The study was led by [[Walter Pahnke]], a graduate student in theology and medicine at [[Harvard University]], under the supervision of [[Timothy Leary]] and [[Richard Alpert]], who were both professors at Harvard at the time.

==Background==
The Marsh Chapel Experiment was part of a larger series of studies exploring the therapeutic and spiritual potential of psychedelic substances, which were being conducted by Leary, Alpert, and their colleagues at the Harvard Psilocybin Project. Pahnke's interest in the intersection of pharmacology, psychology, and spirituality led him to design the experiment to specifically assess the capacity of psilocybin to induce mystical experiences in religiously predisposed individuals.

==Methodology==
The experiment involved twenty divinity students, ten of whom were randomly given capsules containing 30 milligrams of psilocybin, while the other ten received a placebo of nicotinic acid, which can produce mild physiological effects but no psychedelic effects. The participants were not informed which substance they had received. The experiment took place in the basement of Marsh Chapel, where the participants listened to the Good Friday service conducted upstairs, through loudspeakers.

==Results==
Pahnke reported that the majority of the participants who received psilocybin experienced profound religious experiences, describing feelings of universal love, transcendence of time and space, and deep insights into the nature of existence. In contrast, those who received the placebo reported much less significant experiences. A follow-up study conducted by [[Rick Doblin]] in 1991 found that the participants who had received psilocybin still considered their experience to be of great personal and spiritual significance.

==Controversy and Impact==
The Marsh Chapel Experiment sparked considerable controversy, primarily due to concerns about the ethics of administering psychoactive drugs to participants without their full informed consent. Additionally, the involvement of Leary and Alpert, who were both dismissed from Harvard in 1963 due to their controversial advocacy of psychedelic drugs, contributed to the experiment's notoriety.

Despite the controversy, the Marsh Chapel Experiment is considered a landmark study in the field of [[psychopharmacology]] and the psychology of religion. It has inspired ongoing research into the potential of psychedelics to facilitate spiritual experiences and their therapeutic applications in treating a variety of mental health conditions.

==See Also==
* [[Psychedelic therapy]]
* [[History of lysergic acid diethylamide]]
* [[Entheogen]]
* [[Mystical experience]]

[[Category:Psychology experiments]]
[[Category:Psychedelic drug research]]
[[Category:1962 in the United States]]
{{psychology-stub}}

Marsh Chapel Experiment - Revision history

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