ANSWER:
Echoic memory would be immediately affected by Richard's lack attention.
Step-by-step explanation:
- Echoic memory is a type of sensory memory which uses the auditory system for receiving the information from anybody talking or lecturing in general.
- This type of memory has the capacity to withhold a large amount of auditory information, but for only a maximum of 3–4 seconds.
- This sound echoes in the mind for a brief time immediately after any auditory stimulus gets generated by any lecture or presentation.