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SURVEYS PUT PARANOID THINKING ON A CONTINUUM
Paranoia Is Recorded As A Diagnosis Someone Either Has Or Lacks
Research From Oxford Describes It As A Range Instead
That Range Has Been Measured In National Surveys
One Survey Of 7,281 English Adults Sorted The Thoughts By Type
Mild Suspicion Was Common And Serious Plots Were Rare
A Separate Lab Used Virtual Reality To Test The Same Idea
Neutral Characters Triggered Persecutory Thoughts In Some People
This Part Covers What Those Numbers Show
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OKAY BACK FROM THE FRONT DOOR 🔑
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WHAT THE SURVEYS FOUND 🔍
The Adult Psychiatric Morbidity Survey Asked About Suspicion
It Ran In England In 2007 With 7,281 Respondents
Daniel Freeman And Colleagues Analyzed The Answers
Their Report Appeared In Psychological Medicine In 2011
The Questions Covered The Previous Year Only
Endorsement Changed Sharply With The Type Of Thought
About 18.6 Percent Said People Were Against Them
Only 1.8 Percent Described Plots To Cause Serious Harm
The Gap Between Those Two Figures Is The Finding
Vague Mistrust Is Common At One End Of The Scale
Specific Accusations Are Rare At The Other
An Earlier British Survey Found The Same Shape
That One Reached 8,580 People In 2000
Paul Bebbington Led The Analysis Published In 2013
Fifteen Paranoia Items Were Drawn From Two Questionnaires
Their Frequencies Ranged From Under 2 Percent To Nearly 30
About 28 Percent Kept An Eye Out To Avoid Being Used
Nineteen Percent Detected Hidden Threats In What Others Said
Just 1.5 Percent Named A Group Plotting Serious Harm
The Total Scores Followed An Almost Perfect Exponential Curve
That Correlation Reached 0.99
Many People Marked A Few Such Items
Very Few Agreed With Many Of Them
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THE TRAIN THAT WAS NOT HOSTILE 🚇
Freeman Built A Virtual Environment To Test This Directly
The Study Appeared In The British Journal Of Psychiatry In 2008
Two Hundred Members Of The Public Took Part
Each One Was Assessed Before Entering The Simulation
The Setting Was A London Underground Train Carriage
That Ride Lasted Four Minutes Between Two Stops
Computer Characters Filled The Carriage Alongside The Participant
Their Behavior Was Programmed To Be Neutral
They Breathed And Looked Around The Carriage
One Read A Newspaper Throughout The Journey
Another Smiled Occasionally When Looked At
No Character Was Written To Threaten Anyone
That Design Removed The Usual Problem With Paranoia Research
Real Social Situations Are Ambiguous And Hard To Repeat
Every Participant Here Met The Same Characters
Any Hostile Reading Came From The Viewer
The Majority Agreed The Characters Were Neutral Or Friendly
A Substantial Minority Reported Persecutory Concerns Instead
The Authors Used Those Exact Words
Four Factors Predicted Who Reported Them
Anxiety And Worry Were The First Two
Perceptual Anomalies And Cognitive Inflexibility Followed
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WHERE THE LINE IS DRAWN 🧭
Freeman Revised The Green Paranoid Thoughts Scale
That Work Was Published In Psychological Medicine
It Drew On 7,297 People Without A Diagnosis
A Comparison Group Included 360 Patients With Persecutory Delusions
The Persecution Scale Covers 0 To 40 Points
Scores Of 5 Or Below Count As Average
That Covered Seventy Three Percent Of The Non Clinical Group
Each Figure Below Counts Everyone At That Score Or Higher
Twenty Seven Percent Scored 6 Or Above
Fifteen Percent Reached 11 Or Above
Seven Percent Reached 18 Or Above
One Percent Scored 28 Or Above
Eleven Is The Recommended Clinical Cut Off
Eighteen Indicates A Likely Persecutory Delusion
Those Two Numbers Are Where The Clinical Line Is Drawn
Nothing Changes About The Thought Itself At That Point
What Changes Is Frequency Conviction And Distress
The 2013 British Survey Analysis Also Described Four Groupings
Interpersonal Sensitivity Came First In That Ordering
Mistrust Of Others Followed
Ideas Of Reference Came Next
Persecutory Ideas Were The Rarest Of The Four
Each Group Endorsed The Ones Below It More Often
