The image presents a collage of four distinct visualizations of the human brain, each highlighting different aspects of brain activity. The top image features a blue silhouette of a head with a glowing brain, set against a black background. The second image showcases a brain filled with pink and red spots, indicating areas of activity. The third image displays a brain with a bright white center, surrounded by a red glow. The final image depicts a brain with blue lines radiating outward, symbolizing the transmission of neural signals. These visualizations collectively offer a comprehensive view of brain function and activity.