Data for: Preprocessed Task-Based fMRI for a Cognitive–Motor Dual-Task Study

This dataset contains preprocessed task-based functional MRI (fMRI) collected during a cognitive–motor dual-task paradigm. Participants included younger and older adults who performed single-task and dual-task conditions involving a Go/No-Go cognitive task and a pedaling motor task. MRI data were preprocessed using fMRIPrep and normalized to standard space. The dataset is organized following the BIDS standard and is intended to support analyses of age-related differences in cognitive–motor interference and functional brain connectivity.