Assessment tools for differential diagnosis of neglect: Focusing on egocentric neglect and allocentric neglect

There are very few studies on the differential diagnosis between egocentric neglect (EN) and allocentric neglect (AN).

To investigate the overall trend of the previously developed assessment tools by conducting a descriptive review of the studies on assessment tools that can perform a differential diagnosis of EN and AN.

The data were collected by using databases such as Google Scholar, PubMed, and ScienceDirect. The most commonly used search terms were "neglect", "stroke", "egocentric neglect", and "allocentric neglect".

A total of seven studies that met the inclusion criteria were selected and analyzed. We were able to confirm the research process, test method, and differential diagnosis criteria of the seven presented assessment tools from four studies on paper-based tests and three studies on computerized tests. The majority of the tests were carried out via the cancellation method using stimuli such as everyday objects or numbers. EN distinguished the left from right based on the test paper, while AN distinguished the left from right based on stimuli. In order to perform differential diagnosis, the difference in the number of left and right responses or non-responses was used based on the EN and AN criteria.

It was confirmed that all the seven assessment tools can effectively perform differential diagnosis of EN and AN. This study may provide important data that can be used in clinical practice for differential diagnosis and future intervention planning for neglect patients.