Anomalous: means something that is irregular and
doesn't fit into existing explanations
a way to refer to paranormal or psi phenomenon
Pseudoscience and Parapsyhology
used to describe a 'false' science
masquerading as science
Lack falsifiability
scientific method of testing hypotheses:
not possible to prove it correct but you
can prove it wong
many hypotheses related to
anomalous experience have a end
result of a non-falsifiable
hypotheses as they are 'jealous
phenomena
Lack carefully controlled, replicable research
many examples of failure
to replicate studies in
parapsychology
the fact that sceptics invariably
fail to get the same results as
believers challenges the objective
nature of the research
Lack of ability to change
continued to be explained in the same way for
centuries despite a lack of evidence
Burden of proof misplaced on sceptic
If there are two competing explanations, simpler ne
is to be preferred(Occam's razor) - paranormal
explanations are extremely convoluted
Methodological Issues
ESP (Ganzfeld)
Researcher bias - sheep-goat effect
File drawer effect
Lack of control - sensory leakage
Expectations affect
outcome of meta-analysis
Psychokinesis (PK)
Expectations created in study
led to macro-pk reports
Lack of control - well controlled
studies show no effect
Ecological validity - micro-pk
may not represent paranormal
action
Explanations
Coincidence and Probabilty
Coincidence
Illusion of causality
if two things happen at
the same time, sheep are
more likely to believe
that one has caused the
other
Illusion of connection
making links between unrelated items
Illusion of control
explanations for coincidence
give sense of order in world
General cognitive ability
lower intelligence more likely to be believers
Probability
paranormal experiences are a cognitive
illusion due to attributing cause to
random events
tested using repetition
avoidance(estimate dice
throw), questions about
probability(birthday party
paradox), conjunction
vignettes(estimate
probability)
Superstitious behaviors and Magical thinking
Superstitious Behaviour
making erroneous causal links (Type 1 error)
Type 1 error: erroneously assume causality
between two unrelated events that co-occur
Skinner: superstitions
develop when an accidental
stimulus-response link is
learned and then
maintained through
negative reinforcement
superstitious develop to
give an illusion of
control
Magical Thinking
Freud: a form of
childlike thinking, a
defense mechanism in
adults
Dual processing theory:
thought is intuitive or
logical
Animism: association of objects
with feelings, e.g. the bed will hurt if
we jump on them, feng shui
Nominal thinking: names
of objects affect our
feelings about them
Law of contagion: magical
thinking is adaptive to avoid
disease
Personality factors
Eysenck's personality factors
Neuroticism - negative emotional states
reduced by paranormal beliefs ( defense
mechanism)
Extraversion - people are more
open to paranormal beliefs
Psychoticism - associated not
only with the liability to have a
psychotic episode, but also with
aggression
Williams et al - positive correlation
between neuroticism and paranormal
beliefs
Honor ton et al - positive
correlation between extraversion
and paranormal beliefs
More imaginative personality
Fantasy proneness - becoming
so deeply absorbed in fantasy
to believe it real
Suggestibility - more willing
to believe fakes
Creative personalities make
links between unrelated items
Other factors
Locus of control, field
dependence, higher sense
of seeking
Exceptional Experience
Psychic healing and mediumship
Psychic healing
energy fields re-aligned by therapeutic touch
reduction of anxiety through psychological support
Placebo effect - expectations of benefit
created by success stories which could be
due to spontaneous recovery
Wirth - tested patients treated with
TT or no touch, former recovered
fasted
Rosa - TT practitioners unable
to detect 'energy field' of
experimenter's hand
Cha - effect of prayer on
infertile women, twice as
many became pregnant
Psychic mediumship
Clues help medium
produce accurate
information without
psychic ability
Use of general statements ( Barnum
statements) and willingness of sitters to
elaborate
Fraud - psychic mediumship is big
business so people rest to complex
and convincing strategies
Schwartz - accuracy of medium
statements about 80%
Rock and Beischel - mediums
responding differently to dead and
living love ones
Out-of-body and Near-death experiences
Out-of-body (OOBE)
Paranormal - mind and
body separated
Sensory input is
disturbed, reconstruction
based on bird's eye view
Blake - stimulation of
temporal-parental junction of the
brain resulted in OOBEs
Alvarado - induced OOBEs -
weak but occasionally
startling results
Green - 400 personal accounts of
OOBEs, 20% 'parasomatic', rest
'asomatic'
Near-Death-Experience (NDE)
evidence of an afterlife or
'soul' due to paranormal
belief
Endorphins released at time of stress, lead to
feelings of euphoria and detachment
REM intrusions due to hypoxia
disrupt integration of sensory
information
Hypoxia triggers a flood of glutamate
which is blocked by the brain to prevent
neuronal death, leading to an NDE
Ring - survivors describe NDE as
peaceful and like a life review
Nelson - NDE group more
likely to experience REM
intrusion
Jansen - ketamine can
produce symptoms of NDEs,
ad ketamine has same effect a
s glutamate