The mental storage system for attention-getting sensory stimuli or input is referred to as:

The mental storage system for attention-getting sensory stimuli or input is best referred to as sensory memory. Sensory memory acts as a brief storage system for the raw data received from our senses, such as visual or auditory stimuli. This type of memory allows individuals to retain information long enough for it to be processed and recognized. It serves as a critical function in our cognitive processing, allowing us to attend to important stimuli in our environment before we make more conscious decisions about what to focus on or remember.

While the terms sight and sound refer to specific sensory modalities, they do not encapsulate the broader concept of memory storage. Sensory stimulus, on the other hand, describes the external input that might enter sensory memory, but it does not denote the mental storage system itself. Thus, sensory memory is the most accurate term for the system that briefly holds attention-getting sensory input.