Presentation of video highlights is disclosed. A data processing system receives from multiple users, multimedia files with user-generated video(s), the multimedia files being produced and enhanced by the users. The data processing system generates a speckle excitement vector of the multimedia files based on identifying feature(s) of the user-generated video(s). The processing and distribution system determines a cognitive state of each of the users based, in part, on the speckle excitement vector of each of the multimedia files. The processing and distribution system alters characteristic(s) of the user-generated video(s) of the multimedia files based on the cognitive state of each of the users that results in altered video(s). The processing and distribution system compiles the altered video(s) into a digital file that includes automatically-produced multimedia content. The processing and distribution system makes the digital file available for viewing.