Q. Which of the following type of memory has the shortest duration?

Correct Answer: (B) Iconic memory

Explanation:

Iconic memory is a type of sensory memory that specifically deals with visual information. It has the shortest duration, lasting only about 0.2 to 0.5 seconds. This brief retention allows the brain to process visual stimuli before it either discards the information or transfers it to short-term memory.

Here’s a breakdown of the options:

– (A) Immediate memory: This is often used interchangeably with short-term memory or working memory, which lasts for a few seconds to minutes, depending on the context.

– (B) Iconic memory: This is the correct answer because it is a form of sensory memory with an extremely short duration (less than a second).

– (C) Working memory: This is a part of short-term memory that actively processes and manipulates information. It lasts longer than iconic memory, typically for several seconds to minutes.

– (D) Echoic memory: This is another type of sensory memory, but it deals with auditory information. It lasts slightly longer than iconic memory, typically around 3–4 seconds.