Do humans best absorb and retain information from verbal or visual or both stimuli and can you cite the sources to the answer?

Research shows that humans generally retain information best when exposed to both verbal and visual stimuli. This is known as the dual-coding theory, which suggests that presenting information through multiple sensory channels enhances learning and memory. Studies have demonstrated that combining verbal explanations with visual aids, such as images or diagrams, leads to improved comprehension and retention compared to using only one type of stimulus.