Table 1 Illusion questionnaire, with the classic illusion statements, the control, and thermo-affective items (specified in bold).

From: Visuo-thermal congruency modulates the sense of body ownership

During the experiment there were times when…

Category

1

It seemed as if I were feeling the touch of the object in the location where I saw the rubber hand touched

Illusion statement (referral, location)

2

It seemed as though the touch I felt was caused by the object touching the rubber hand

Illusion statement (referral, causality)

3

I felt as if the rubber hand was my hand

Illusion statement (ownership)

4

It felt as if my (real) hand was drifting towards the rubber hand

Control item

5

It seemed as if I might have more than one left hand or arm

Control item

6

It seemed as if the touch I was feeling came from somewhere between my own hand and the rubber hand

Control item

7

It felt as if my (real) hand was turning ‘rubbery'

Control item

8

It appeared (visually) as if the rubber hand was drifting towards my hand

Control item

9

The rubber hand began to resemble my own (real) hand, in terms of shape, skin tone, freckles or some other visual features

Control item

10

The sensation I felt on my arm and hand was cold

Thermo-affective

11

The sensation I felt on my arm and hand was warm

Thermo-affective

12

The sensation I felt on my arm and hand was pleasant

Thermo-affective

  1. Participants responded using a rating scale ranging from −3, completely disagree to +3, completely agree.