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Meaningful information refers to sensory input that has been processed and organized by the brain in a way that gives it significance and allows for understanding or interpretation.
Perception is the process by which we interpret and make sense of sensory information from our environment.
Attention is the cognitive process that enables us to selectively focus on specific stimuli while filtering out irrelevant or distracting information.
Encoding is the process of converting sensory inputs into a format that can be stored and later retrieved from memory.