The distractor effect is an inhibition of saccades shortly after a sudden visual event. It has been explained both as an oculomotor reflex and as a manifestation of the orienting response. To clarify which explanation is more appropriate, we investigated a possible habituation of this effect. Visual and auditory distractors were presented at gaze-contingent intervals during the perception of meaningful pictures. Both reflexlike and modifiable components were present in the visual distractor effect, with latencies of about 110 and 180 ms, respectively. The influence of visual and auditory distractors on saccades preceded the earliest changes in cortical ERPs. Only for long-term habituation in the visual modality was a correlation with ERPs (N1) found.
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http://dx.doi.org/10.1111/j.1469-8986.2007.00504.x | DOI Listing |
Sci Rep
January 2025
Department of Clinical Medicine, Aarhus University, Aarhus N, DK-8200, Denmark.
Spectacles and contact lenses are important for conducting a normal life in a large part of the general population. The purpose of this study was to estimate the use of these refractive aids in a normal adult population, and to identify characteristics of persons who should be targeted in order to improve uncorrected refraction. In the FORSYN study, 10,350 citizens representative for the adult Danish population were invited for a non-cycloplegic eye examination.
View Article and Find Full Text PDFJ Neurosci
January 2025
South China Normal University, Center for Studies of Psychological Application; School of Psychology; Guangdong Provincial Key Laboratory of Mental Health and Cognitive Science; Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education
Sci Rep
December 2024
Department of Drug Prohibition and Public Security, Criminal Investigation Police University of China, Shenyang, 110035, China.
Methamphetamine use disorder has emerged as a significant public health concern globally. This study endeavors to elucidate the alterations in expression changes of miRNAs in the plasma of methamphetamine use disorder and elucidate the alterations in miRNA expression in the plasma of individuals with methamphetamine use disorder and investigate the relationship between these differentially expressed miRNAs and the disorder itself, cravings for methamphetamine, and associated mental disorders. Furthermore, the study seeks to clarify the expression of downstream target molecules of specific miRNAs in the plasma of methamphetamine use disorder, assess the diagnostic utility of these miRNAs and their target molecules, explore their potential as biomarkers, and identify potential targets for the diagnosis and treatment of methamphetamine use disorder.
View Article and Find Full Text PDFGeorgian Med News
October 2024
1Faculty of Medicine, Ivane Javakhishvili Tbilisi State University, Georgia.
Introduction: Intravenous drug use has a significant impact on oral and maxillofacial health, often resulting in complications like tooth loss and osteomyelitis. This study investigates the differences in oral health between drug users enrolled in replacement therapy and those not yet participating, with the goal of assessing the impact of structured treatment programs.
Aim: to evaluate and compare the prevalence of oral and maxillofacial complications among drug users involved in replacement therapy and those newly registering for treatment.
Can J Ophthalmol
December 2024
Department of Ophthalmology and Visual Sciences, Dalhousie University, Halifax, Nova Scotia, Canada.
Objective: To conduct a pilot study to evaluate and compare the 24-hour habitual intraocular pressure (IOP) and ocular perfusion pressure (OPP) fluctuation in glaucoma patients treated with medical therapy, selective laser trabeculoplasty (SLT) or trabeculectomy.
Design: Pilot study.
Participants: Criteria for inclusion were patients aged 18 years or older with well-controlled IOP with either maximum tolerated medical therapy, previous SLT, or previous trabeculectomy.
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