Information Processing Theory Explained

Core Concepts of Memory00:00:28

The theory compares the brain to a computer, identifying short-term memory as the processor and long-term memory as the hard drive. Short-term memory has limited capacity, while long-term memory acts as a vast storage for life experiences.

Encoding, Retrieval, and Sensory Memory00:01:20

Information moves from short-term to long-term memory via encoding and is brought back to awareness via retrieval. Sensory inputs are first captured as sensory memory: iconic for vision and echoic for auditory information.

Selective Attention and Working Memory00:02:31

Selective attention filters excessive sensory input to prevent memory overload. Researchers later updated the concept of short-term memory to 'working memory,' which features specific components: the phonological loop for auditory data and the visuospatial sketchpad for visual data.

Dual-Task Performance and Summary00:03:14

Studies on dual-task performance show humans struggle with two similar tasks simultaneously, but can manage mixed tasks like driving and talking. The video concludes by reviewing the full flow from sensory input and selective attention to long-term encoding.