A Validity and Reliability Study of Pareidolia Test

Year 2018, , 375 - 381, 28.09.2018

Gülsüm Akdeniz

https://doi.org/10.17098/amj.461661

Cited By: 1

Abstract

Objectives: Pareidolia is a phenomenon as the interpretation of something as a familiar pattern in a stimulus or an image by the brain, which actually does not exist. Face pareidolia is the visual illusion and hallucination perception of nonexistent faces. The pareidolia test is used to evoke visual illusions. The aim of the study was to create a simplified version of the pareidolia test and perform the validity and reliability tests. 

Materials and Methods: The Pareidolia test was conducted with 75 healthy volunteers. To determine the validity of this test, Kendall W analysis was used. For the internal coherence of the test within its subdimensions the Cronbach alpha coefficient was used and Pearson Correlation Analysis was used in the reliability studies. 

Results: There were 75 healthy adult volunteers in this study, 34 participants were female and 41 were male. The average age of participants was 21.46 ± 2.17. The coefficient of Cronbach Alpha was 0.88 which had a high degree of reliability. 

Conclusion: The pareidolia test is a reliable and valid tool for scanning visual illusions in adults. Findings of the simplified version of the pareidolia test might be extended by collecting clinical data. For example, it would be possible to apply the same procedure to clinical patients with dementia with Lewy bodies or with Alzheimer disease.

Keywords

Pareidolia, visual perception, brain

Pareidolia Testinin Geçerlilik ve Güvenirlilik Çalışması

Abstract

Amaç: Pareidolia, gerçekte
var olmayan bir nesnenin bir uyaran veya bir görüntüde beyin tarafından tanıdık
bir patern olarak yorumlanmasıdır. Yüz pareidolia, var olmayan yüzlerin görsel
yanılsama ve halüsinasyon algısıdır. Pareidolia testi, görsel yanılsamaları
uyarmak için kullanılır. Bu çalışmanın amacı, pareidolia testinin
basitleştirilmiş bir versiyonunu oluşturmak, geçerlik ve güvenirlik testlerini
yapmaktır.
Materyal ve Metot: Pareidolia testi
75 sağlıklı gönüllü birey ile gerçekleştirildi. Bu testin geçerliliğini
belirlemek için Kendall W analizi kullanıldı. Testin alt boyutlarında iç
tutarlılığı için Cronbach alfa katsayısı kullanılmış ve güvenilirlik
çalışmalarında Pearson Korelasyon Analizi kullanıldı.
Bulgular: Bu çalışmadaki 75 yetişkin
sağlıklı gönüllü katılımcının 34’ü kadın 41’i erkekti. Katılımcıların yaş
ortalaması 21,46 ± 2,17 olarak belirlendi. Cronbach Alpha katsayısı 0,88 olup, yüksek
güvenilirlik derecesine sahipti. 
Sonuç: Pareidolia testi,
yetişkinlerde görsel yanılsamaların taranması için güvenilir ve geçerli bir
testtir. Pareidolia testinin basitleştirilmiş versiyonunun bulguları klinik
veriler toplanarak genişletilebilir. Örneğin, aynı prosedür Lewy cisimli demans
veya Alzhemir hastalığı olan klinik hastalarda uygulamak mümkün olabilir.

Keywords

Pareidolia, görsel algı, beyin

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