TY - JOUR JF - gums-cjns JO - Caspian J Neurol Sci VL - 3 IS - 2 PY - 2017 Y1 - 2017/6/01 TI - Predicting Normal People’s Reaction Time based on Hippocampal Local Efficiency During a Memory-Guided Attention Task TT - N2 - Background: There are some convincing shreds of evidence indicating that memory can direct attention. The local efficiency of an area in the brain, as a quantitative feature in a complex network, indicates how the surrounding nodes can transfer the information when a specific node is omitted. This feature is a scale for measuring efficient integration of information in the brain. Objectives: The purpose of the present study is to predict the reaction time using the local efficiency variable while doing memory-guided attention task. Materials and Methods: The fMRI database of a research done in New York University during a visual search task was used for this study. Thirty-five right-handed healthy participants (51% female, mean age= 21.7 years) were recruited at New York University. SPM was used for pre-processing fMRI images, and CONN was used for calculating the values of local efficiency. SPSS was also used for statistical analysis of the study. Results: Results of the study revealed that local efficiency of the right hippocampus can positively predict the reaction time during memory-guided attention tasks. Conclusion: The findings of the study demonstrated that the hippocampus area has a significant role in the performance of memory-guided attention, and this significant role of the hippocampus reveals that long-term memory uses the hippocampus and affects the movement and attention of eyes on the target. SP - 60 EP - 65 AU - Saliminia, Fereshteh AU - Amini-Masouleh, Milad AD - MSc in Cognitive Science, AzarbaijanShahidMadani University, Tabriz, Iran; Fereshte.saliminia@gmail.com KW - Reaction Time KW - Memory KW - Hippocampus KW - Attention KW - Functional Neuroimaging UR - http://cjns.gums.ac.ir/article-1-169-en.html DO - 10.18869/acadpub.cjns.3.9.60 ER -