Abstract
We benefited from the flexibility provided by virtual reality to enhance a classical paradigm on array and self mental rotations and related questions on a set of items. We used this paradigm to investigate how the Level of Schizotypy in nonclinical subjects might influence their behavior in egocentric and allocentric mental transformations. Three elements of novelty were introduced: (i) we separated the phases of mental transformation (Imagined Rotation Phase) and task performance (Task Phase), (ii) we measured the time required for Imagined Rotation Phase and Task Phase separately, and (iii) we cued self-rotations with a virtual human being (self-avatar) or an inanimate object (self-chair). Twenty-four nonclinical participants were categorized in low- and high-schizotypal subjects (Low-S, High-S). A mixed-design analysis of variance showed that High-S were significantly faster than Low-S during the Imagined Rotation Phase (array and self-chair rotations) and during the Task Phase (self-chair). High-S were also faster in the self-chair than in the self-avatar rotation, supporting the existence of a dissociation between perspective changing and perspective taking in High-S. In line with the literature, we found that participant performances decreased with increasing angular difference between the initial and the imagined perspective.
| Original language | English |
|---|---|
| Pages (from-to) | 291-299 |
| Number of pages | 9 |
| Journal | Biomedizinische Technik |
| Volume | 56 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Oct 1 2011 |
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Keywords
- mental rotations
- perspective taking
- schizotypal disorder
- virtual reality
ASJC Scopus subject areas
- Biomedical Engineering
- Medicine(all)
Cite this
A virtual environment for egocentric and allocentric mental transformations : A study on a nonclinical population of adults with distinct levels of schizotypy. / Steinisch, Martin; Sulpizio, Valentina; Iorio, Angelo Andrea; Di Naccio, Alessandra; Haueisen, Jens; Committeri, Giorgia; Comani, Silvia.
In: Biomedizinische Technik, Vol. 56, No. 5, 01.10.2011, p. 291-299.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A virtual environment for egocentric and allocentric mental transformations
T2 - A study on a nonclinical population of adults with distinct levels of schizotypy
AU - Steinisch, Martin
AU - Sulpizio, Valentina
AU - Iorio, Angelo Andrea
AU - Di Naccio, Alessandra
AU - Haueisen, Jens
AU - Committeri, Giorgia
AU - Comani, Silvia
PY - 2011/10/1
Y1 - 2011/10/1
N2 - We benefited from the flexibility provided by virtual reality to enhance a classical paradigm on array and self mental rotations and related questions on a set of items. We used this paradigm to investigate how the Level of Schizotypy in nonclinical subjects might influence their behavior in egocentric and allocentric mental transformations. Three elements of novelty were introduced: (i) we separated the phases of mental transformation (Imagined Rotation Phase) and task performance (Task Phase), (ii) we measured the time required for Imagined Rotation Phase and Task Phase separately, and (iii) we cued self-rotations with a virtual human being (self-avatar) or an inanimate object (self-chair). Twenty-four nonclinical participants were categorized in low- and high-schizotypal subjects (Low-S, High-S). A mixed-design analysis of variance showed that High-S were significantly faster than Low-S during the Imagined Rotation Phase (array and self-chair rotations) and during the Task Phase (self-chair). High-S were also faster in the self-chair than in the self-avatar rotation, supporting the existence of a dissociation between perspective changing and perspective taking in High-S. In line with the literature, we found that participant performances decreased with increasing angular difference between the initial and the imagined perspective.
AB - We benefited from the flexibility provided by virtual reality to enhance a classical paradigm on array and self mental rotations and related questions on a set of items. We used this paradigm to investigate how the Level of Schizotypy in nonclinical subjects might influence their behavior in egocentric and allocentric mental transformations. Three elements of novelty were introduced: (i) we separated the phases of mental transformation (Imagined Rotation Phase) and task performance (Task Phase), (ii) we measured the time required for Imagined Rotation Phase and Task Phase separately, and (iii) we cued self-rotations with a virtual human being (self-avatar) or an inanimate object (self-chair). Twenty-four nonclinical participants were categorized in low- and high-schizotypal subjects (Low-S, High-S). A mixed-design analysis of variance showed that High-S were significantly faster than Low-S during the Imagined Rotation Phase (array and self-chair rotations) and during the Task Phase (self-chair). High-S were also faster in the self-chair than in the self-avatar rotation, supporting the existence of a dissociation between perspective changing and perspective taking in High-S. In line with the literature, we found that participant performances decreased with increasing angular difference between the initial and the imagined perspective.
KW - mental rotations
KW - perspective taking
KW - schizotypal disorder
KW - virtual reality
UR - http://www.scopus.com/inward/record.url?scp=80054698641&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80054698641&partnerID=8YFLogxK
U2 - 10.1515/BMT.2011.107
DO - 10.1515/BMT.2011.107
M3 - Article
C2 - 21988160
AN - SCOPUS:80054698641
VL - 56
SP - 291
EP - 299
JO - Biomedizinische Technik. Biomedical engineering
JF - Biomedizinische Technik. Biomedical engineering
SN - 0013-5585
IS - 5
ER -