Prediction Of The Vividness Of Imaging The Future And Remembering The Past Using Resting State FMRI Data

Imaging the future and remembering the past plays an important role of human daily life. The vast majority of research focuses on task dependent brain activity. However, a wave of recent studies have found that there is an important relationship between the spontaneous brain activity and task performance. The exact neural correlates for individual difference in imaging the future and remembering the past are largely unknown. In the current study, we explored the intrinsic neural basis related to vividness of imaging the future and remembering the past, and whether the correlation would be affected by personal goals by using multivariable regression and Pearson Correlation. We chose ALFF, ReHo and DC as the intrinsic neural signal’s feature, and the classic’word-cue’paradigm as the task paradigm. Personal relevance and temporal direction are tested as two factors in the experimental design. We found that the spontaneous brain activity in ventromedial prefrontal cortex, medial temporal lobe could predict the performance of imaging the future and remembering the non-personal past, and there exist a predictive trend in vividness of remembering the personal past. Interestingly, this predictive capability is only limited in the local features of spontaneous brain activity. In addition, it was found that there is a main effect in personal relevance, but there was no interactive effect with temporal direction. Finally, we retested our results in different preprocessing treatments, finding there was a high consistency. In summary, we find that spontaneous brain activity was correlated with imaging the future and remembering the past, but it was limited to the local features. Personal goal affected the predictive power. Personal events are more task-relevance, and non-personal events are more task free.