This study examined the neural mechanisms involved in mixed vision, where both foveal and peripheral visual inputs are processed at the same time. Functional magnetic resonance imaging (fMRI) was used to compare brain activity under three conditions: foveal vision, peripheral vision, and mixed vision. Data analysis was performed using statistical parametric mapping with family-wise error correction. Mixed vision led to broader and stronger activation in brain regions related to visual processing, attentional control, and visuomotor integration. These areas included the superior parietal lobule, precentral gyrus, lingual gyrus, and occipital white matter. The findings indicate that mixed vision activates a unique and coordinated neural network. This contributes to our understanding of real-world visual perception and may inform research on attention-related disorders.