To receive information from the environment, we are equipped with sense organs, e.g., the eye, ear, and nose. Each sense organ is part of a sensory system| Simply Psychology
The bottom-up process involves information traveling "up" from the stimuli, via the senses, to the brain which then interprets it, relatively passively.| Simply Psychology
Information Processing Theory explains human thinking as a series of steps similar to how computers process information, including receiving input, interpreting sensory information, organizing data, forming mental representations, retrieving info from memory, making decisions, and giving output.| Simply Psychology