FREEMAN ET AL (2003)- PROCEDURE

Question 1

Summarise the procedure of Freeman et al (2003) study.

Answer 1

1. QUESTIONNAIRE COMPLETION (half)
2. VR TRAINING
3. INSTRUCTIONS/ENTER
4. VIRTUAL SCENE
5. QUESTIONNAIRE COMPLETION (other half)
6. SEMI-STRUCTURED INTERVIEW.
7. CLINICAL PSYCHOLOGIST.

Question 2

Can you describe stage 1 of the procedure?

Answer 2

• Half of the ppts completed the questionnaires before the VR
• The other half completed them after the VR experience.

Question 3

Why did half of the ppts complete the questionnaire before the virtual experience?

Answer 3

• To account for the possibility that the questionnaires may prime persecutory thoughts in ppts.

Question 4

Can you describe the 2nd stage of the procedure?

Answer 4

• VR TRAINING:
• Ppts were trained in how to use the VR equitment.

(then asked to enter the virtual scene for 5 mins)

Question 5

Can you describe stage 3 of the procedure?

Answer 5

INSTRUCTIONS: Ppts were told to..
1. Please explore the room,
2. And try to form some impression of what you think about the people in the room,
3. And what they think about you

Question 6

What were the ppts told when they entered the virtual enviroment?

Answer 6

1. Please explore the room,
2. And try to form some impression of what you think about the people in the room,
3. And what they think about you

Question 7

Stage 5: The other half of the ppts were asked to complete the 5 questionaires. What were they called and in what order were they taken?

Answer 7

1. Brief Symptom Inventory (BSI)
2. Paranoia Scale (PS)
3. (Spielberger) State Anxiety Questionnaire. (SSAQ)
4. VR-Paranoia Questionnaire (VPQ)
5. State Of Presence Questionnaire (SOPQ)

Question 8

What is the Brief Symptom Invetory?

Answer 8

• 53 item self-report measure.
• Measures 9 symptom dimensions. (HAD)
• Which were rated on a 5-point response scale.

Hostility, anxiety, depression

Question 9

What was stage 6 of the procedure?

Answer 9

• A semi-structured interview was conducted
• The interviews were videotaped and rated for persecutory content,
• on a 6 point scale by an experienced clinical psychologist.
• And also measured PPts impression of the virtual scene, Report any distress.

Question 10

What did the semi-structured interview conducted by the clinical psychologist measure?

Answer 10

• Immersion in the VR.
• Experiences of distress, persecutory ideation.

Question 11

How were the semi-structure interview conducted?

Answer 11

• Videotaped,
• Rated for persecutory ideation on a 6 point scale.

Question 12

Who conducted the semi-structured interview?

Answer 12

• Clinical psycholgist.

Question 13

Can you describe the virtual scene?

Answer 13

• 5 avatars (3 at one desk/ 2 at another)
• Occationally showed ambigious behaviours (looking,smiling and talking to eachother)