Refractive Errors Affect the Vividness of Visual Mental Images

Liana Palermo, Raffaella Nori, Laura Piccardi, Fabrizio Zeri, Antonio Babino, Fiorella Giusberti, Cecilia Guariglia

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The hypothesis that visual perception and mental imagery are equivalent has never been explored in individuals with vision defects not preventing the visual perception of the world, such as refractive errors. Refractive error (i.e., myopia, hyperopia or astigmatism) is a condition where the refracting system of the eye fails to focus objects sharply on the retina. As a consequence refractive errors cause blurred vision.We subdivided 84 individuals according to their spherical equivalent refraction into Emmetropes (control individuals without refractive errors) and Ametropes (individuals with refractive errors). Participants performed a vividness task and completed a questionnaire that explored their cognitive style of thinking before their vision was checked by an ophthalmologist. Although results showed that Ametropes had less vivid mental images than Emmetropes this did not affect the development of their cognitive style of thinking; in fact, Ametropes were able to use both verbal and visual strategies to acquire and retrieve information. Present data are consistent with the hypothesis of equivalence between imagery and perception.

Original languageEnglish
Article numbere65161
JournalPLoS One
Volume8
Issue number6
DOIs
Publication statusPublished - Jun 5 2013

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Refractive Errors
Visual Perception
Imagery (Psychotherapy)
cognitive development
retina
Hyperopia
questionnaires
eyes
Astigmatism
Myopia
Refraction
Retina
Defects
visual perception

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Refractive Errors Affect the Vividness of Visual Mental Images. / Palermo, Liana; Nori, Raffaella; Piccardi, Laura; Zeri, Fabrizio; Babino, Antonio; Giusberti, Fiorella; Guariglia, Cecilia.

In: PLoS One, Vol. 8, No. 6, e65161, 05.06.2013.

Research output: Contribution to journalArticle

Palermo L, Nori R, Piccardi L, Zeri F, Babino A, Giusberti F et al. Refractive Errors Affect the Vividness of Visual Mental Images. PLoS One. 2013 Jun 5;8(6). e65161. https://doi.org/10.1371/journal.pone.0065161
Palermo, Liana ; Nori, Raffaella ; Piccardi, Laura ; Zeri, Fabrizio ; Babino, Antonio ; Giusberti, Fiorella ; Guariglia, Cecilia. / Refractive Errors Affect the Vividness of Visual Mental Images. In: PLoS One. 2013 ; Vol. 8, No. 6.
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