کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
942068 925102 2013 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Landmark sequencing and route knowledge: An fMRI study
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Landmark sequencing and route knowledge: An fMRI study
چکیده انگلیسی

IntroductionThe ability to navigate in a familiar environment mainly relies on route knowledge, that is, a mental representation of relevant locations along a way, sequenced according to a navigational goal. Despite the clear ecological validity of this issue, route navigation and route knowledge have been scarcely investigated and little is known about the neural and cognitive bases of this navigational strategy. Using functional magnetic resonance imaging (fMRI) we tested the validity of the predictions based on the main cognitive models of spatial knowledge acquisition about route-based navigation.MethodsAn order judgment task was used with two conditions (route and activity). Subjects were required to detect potential mismatches between a current sensory input and expectations deriving from route and activity knowledge.ResultsA medial occipto-temporal (e.g., lingual gyrus, calcarine cortex, fusiform gyrus, parahippocampal cortex) network was found activated during the route task, whereas a temporo-parietal (temporo-parietal junction) and frontal (e.g., Broca's area) network was related to the activity task.ConclusionsFunctional data are congruent with cognitive models of route-based navigation. The route task activated areas related to both landmark identity and landmark order. Data are discussed in view of route-based navigation models.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cortex - Volume 49, Issue 2, February 2013, Pages 507–519
نویسندگان
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