according to the terminal drop hypothesis

Permanent links to the unthresholded statistical maps to be uploaded at Neurovault will be provided as part of the dataset deposited on the OSF, under the same DOI (DOI: 10.17605/OSF.IO/F2XW9). In addition, once they become available, we will upload our unthresholded statistical maps to neurovault ( ), an online platform sharing activation data. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All related data (stimuli, instructions, ethics’ approval) are in the osf.io platform (doi: 10.17605/OSF.IO/F2XW9). Received: AugAccepted: MaPublished: June 15, 2021Ĭopyright: © 2021 Haitas et al. PLoS ONE 16(6):Įditor: Anna Manelis, University of Pittsburgh, UNITED STATES

high-demand conditions manifested in semantic control Regions of Interest.Ĭitation: Haitas N, Amiri M, Wilson M, Joanette Y, Steffener J (2021) Age-preserved semantic memory and the CRUNCH effect manifested as differential semantic control networks: An fMRI study. In line with the CRUNCH predictions, differences in neurofunctional activation and behavioral performance (accuracy and response times) are expected in young vs. This study will compare 40 young (20–35 years old) with 40 older participants (60–75 years old) in a triad-based semantic judgment task performed in an fMRI scanner while manipulating levels of task demands (low vs. The CRUNCH effect would manifest itself in semantic tasks through a compensatory increase in neural activation in semantic control network regions but only up to a certain threshold of task demands. To explain this phenomenon, this study aims to test the predictions of the Compensation Related Utilization of Neural Circuits Hypothesis (CRUNCH) focusing on task demands in aging as a possible framework. Semantic memory representations are overall well-maintained in aging whereas semantic control is thought to be more affected.

According to the terminal drop hypothesis