%0 Journal Article
%T Event-Related Potentials Elicited by Face and Face Pareidolia in Parkinson¡¯s Disease
%A Akdeniz
%A Gulsum
%A Bektas
%A Hesna
%A Deniz
%A Orhan
%A Gumusyayla
%A Sadiye
%A Vural
%A Gonul
%J -
%D 2020
%R https://doi.org/10.1155/2020/3107185
%X Background. Parkinson¡¯s disease is associated with impaired ability to recognize emotional facial expressions. In addition to a visual processing disorder, a visual recognition disorder may be involved in these patients. Pareidolia is a type of complex visual illusion that permits the interpretation of a vague stimulus as something known to the observer. Parkinson¡¯s patients experience pareidolic illusions. N170 and N250 waveforms are two event-related potentials (ERPs) involved in emotional facial expression recognition. Objective. In this study, we investigated how Parkinson¡¯s patients process face and face-pareidolia stimuli at the neural level using N170, vertex positive potential (VPP), and N250 components of event-related potentials. Methods. To examine the response of face and face-pareidolia processing in Parkinson¡¯s patients, we measured the N170, VPP, and N250 components of the event-related brain potentials in a group of 21 participants with Parkinson¡¯s disease and 26 control participants. Results. We found that the latencies of N170 and VPP responses to both face and face-pareidolia stimuli were increased along with their amplitudes, and the amplitude of N250 responses decreased in Parkinson¡¯s patients compared to the control group. In both control and Parkinson¡¯s patients, face stimuli generated greater ERP amplitude and shorter latency in responses than did face-pareidolia stimuli. Conclusion. The results of our study showed that ERPs associated with face and also face-pareidolia stimuli processing are changed in early-stage neurophysiological activity in the temporoparietal cortex of Parkinson¡¯s patients
%U https://www.hindawi.com/journals/pd/2020/3107185/