The need for visuals that work with your text
I've had the opportunity to complete a few EEG studies on decision-making, and a consistent observation is how much stimulation the brain needs to stay focused on a task. To influence decisions, we must influence memory. And to influence memory, we must help the brain encode and maintain information. Achieving this requires a balance between text and visuals—not just adding images for decoration, but choosing ones that actively support the text.
Text, due to its linear nature, places a heavy demand on working memory, which is important for transferring information into long-term memory. Visuals, when well-selected and well-integrated with text, can act as a primer for the brain, anchoring attention and making the message more memorable. The right image doesn't merely decorate; it amplifies understanding, primes curiosity, and directs focus back to the text.
So, next time you create an artifact (e.g., a page in an eBook, a slide in a presentation, or a segment in a video), ask yourself: Are the images working with the text to guide focus, or are they simply filling space? What is the ratio between text and visuals, and do the visuals spark attention while reinforcing the text?