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. 2019 Jul 16;1(1):fcz007. doi: 10.1093/braincomms/fcz007

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© The Author(s) (2019). Published by Oxford University Press on behalf of the Guarantors of Brain.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Improvement in performance in patients with LBD with and without hallucinations. (A) False alarm rates in patients with LBD with and without hallucinations (VH) in the Before and After blocks. LBD/VH showed a significant reduction from Before to After, but LBD non-VH did not (see text). (B) Criterion (c) in the Before and After blocks in patients with LBD. There were no group differences in the change from Before to After. Lower c values suggest a response bias to indicate the presence of a person independent of whether a test or control image is shown. (C) Discrimination sensitivity (d′) in Before and After blocks in patients with LBD: higher values suggest better participant ability to correctly disambiguate the two-tone images for the presence of a person. LBD/VH show greater improvement in performance from Before to After, compared with LBD non-VH. In all images confidence intervals 95% are shown.