Assessing the roles of the sender and experimenter in dream ESP research.

Journal article


Roe, Chris A., Sherwood, Simon J., Farrell, Louise, Savva, Louie and Baker, Ian S. 2007. Assessing the roles of the sender and experimenter in dream ESP research. European Journal of Parapsychology.
AuthorsRoe, Chris A., Sherwood, Simon J., Farrell, Louise, Savva, Louie and Baker, Ian S.
Abstract

This study explored the role of the sender in a dream ESP task by considering the effects of presence of a sender (sender, no sender) and the receiver’s expectancy that a sender was present. Forty participants each completed a sender and a no sender trial on consecutive nights by keeping a dream diary of all mentation they could recall when they awoke. The order of trials was randomised across participants. On no-sender nights a randomly selected video clip was played repeatedly from 2:00 until 6:30am; on sender nights a sender would also watch the clip between 6:00 and 6:30am and attempt to communicate its content. Both sender and no sender conditions produced above chance hit rates (30% and 35% respectively), but z scores for similarity ratings did not deviate significantly from chance (sender night: t(39) = 0.92, p = .18; no sender night: t(39) = 1.11, p = .14, one-tailed). There was no difference in performance in terms of sender conditions (z = -0.22, p = .41, one-tailed) or sender expectancy (z = -0.18, p = .46, one-tailed), failing to support the proposal that senders play an active role in dream ESP success. Possible improvements in the manipulation of participant expectancy are discussed.

This study explored the role of the sender in a dream ESP task by considering the effects of presence of a sender (sender, no sender) and the receiver’s expectancy that a sender was present. Forty participants each completed a sender and a no sender trial on consecutive nights by keeping a dream diary of all mentation they could recall when they awoke. The order of trials was randomised across participants. On no-sender nights a randomly selected video clip was played repeatedly from 2:00 until 6:30am; on sender nights a sender would also watch the clip between 6:00 and 6:30am and attempt to communicate its content. Both sender and no sender conditions produced above chance hit rates (30% and 35% respectively), but z scores for similarity ratings did not deviate significantly from chance (sender night: t(39) = 0.92, p = .18; no sender night: t(39) = 1.11, p = .14, one-tailed).
There was no difference in performance in terms of sender conditions (z = -0.22, p = .41, one-tailed) or sender expectancy (z = -0.18, p = .46, one-tailed), failing to support the proposal that senders play an active role in dream ESP success. Possible improvements in the manipulation of participant expectancy are discussed.

KeywordsParapsychology; Dream ESP
Year2007
JournalEuropean Journal of Parapsychology
PublisherEuropean Journal of Parapsychology
ISSN0168-7263
Web address (URL)http://hdl.handle.net/10545/621079
hdl:10545/621079
Publication dates2007
Publication process dates
Deposited25 Nov 2016, 16:24
Series22
2
ContributorsUniversity of Edinburgh
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