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*** between control of saccadic eye movements and performance in other cognitive tasks in younger adults,older adults and patients with Parkinson’s disease

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Annals of Eye Science 2018年第1期 479-479页

作者： Julie Ouerfelli-Ethier basma elsaeid Julie Des Groseilliers Lydia Ouchene Douglas P.Munoz Gunnar Blohm Aarlenne Z.Khan École d'Optométrie Universitéde MontréalMontréalQCCanada Center for Neuroscience Studies Queen's UniversityKingstonONCanada Department of Medicine and Health Sciences Universitéde SherbrookeSherbrookeQCCanada

Background:Cognitive control is defined as the ability to act flexibly in the environment by either behaving automatically or inhibiting said automatic behaviour and it can be measured using an interleaved pro/anti-saccade *** in cognitive control has been attributed to normal aging and neurological illnesses such as Parkinson’s disease(PD)as well as decline in other cognitive *** parallel might highlight the role played by cognitive control in information processing and working ***,little is known about the relationship between cognitive control and other cognitive processes such as visual memory,decision making,and visual *** thus propose to correlate the incidence of impaired cognitive control with deficits in visual memory,decision making and visual search in three groups:younger adults,older adults and patients with idiopathic ***:Seventy-one participants,namely 34 adults(M=22.75,SD=3.8),22 older adults(M=67.4,SD=8.3),and 20 PD patients(M=65.59,SD=8.2)performed four tasks:interleaved pro/anti-saccade,visual memory,decision making,and serial and pop-out visual ***:Results show that within each group,anti-saccade error rate(ER)were significantly and negatively correlated with visual memory ER(ryounger=−0.378,P=0.036;rolder=−0.440,Polder=0.046;rPD=−0.609,P=0.016).On the other hand,correct decision-making reaction times(RT)were significantly correlated with anti-saccade ER,and RTs only in older adults(rER=0.529,P=0.014;rRT=0.512,P=0.018)and PD patients(rER=0.727,P=0.012;rRT=0.769,P=0.001).For visual search,PD patients showed a significant relationship between RTs for correct pro-saccades and pop-out(r=0.665,P=0.007),and serial(r=0.641,P=0.010)search ***,there was a significant correlation between MoCA scores and anti-saccade RTs(r=−0.559,P=0.030)and ER(r=−0.562,P=0.029)in PD *** together,these results support the hypothesis of PD patients’reliance on bottom-up processes as top-down proces

关键词： Saccade cognitive control Parkinson's disease

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