Neural portraits of perception: reconstructing face images from evoked brain activity.

Abstract in brief

• Recent advances in neuroimaging have enabled the reconstruction of visual experiences from brain activity, primarily focusing on early visual cortex, but subjective perception is more closely linked to higher-level cortical regions that have not been used extensively in reconstructions.
• The study demonstrated that individual face images could be accurately reconstructed from patterns of neural activity, even when excluding activity from occipital (early visual) cortex, by using principal component analysis, machine learning algorithms, and transformation of component scores into images.
• This approach not only advances understanding of face perception but also opens possibilities for reconstructing offline visual experiences like dreams, memories, or imagination, which mainly involve higher-level brain regions.