The Pareidolia Test: A Simple Neuropsychological Test Measuring Visual Hallucination-Like Illusions.

ABSTRACT:

Background

Visual hallucinations are a core clinical feature of dementia with Lewy bodies (DLB), and this symptom is important in the differential diagnosis and prediction of treatment response. The pareidolia test is a tool that evokes visual hallucination-like illusions, and these illusions may be a surrogate marker of visual hallucinations in DLB. We created a simplified version of the pareidolia test and examined its validity and reliability to establish the clinical utility of this test.

Methods

The pareidolia test was administered to 52 patients with DLB, 52 patients with Alzheimer's disease (AD) and 20 healthy controls (HCs). We assessed the test-retest/inter-rater reliability using the intra-class correlation coefficient (ICC) and the concurrent validity using the Ne

SUBMITTER: Mamiya Y 

PROVIDER: S-EPMC4865118 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature