PSYC 406 Study Guide - Comprehensive Final Exam Guide - Retina, Sensory Neuron, Temporal Lobe
Document Summary
Environmental stimulus are all objects available to observer. Stimulus impinges on receptors which results in internal representation on the back of the eyeball. Transduction occurs, changing environmental energy to electrical signals. Changes occur as signals are transmitted through the maze of neurons. Knowledge: information perceiver brings to a situation. Starts with the image on the receptors. Using models, ideas, and expectations to interpret sensory info. Absolute threshold, smallest amount of energy needed to detect stimulus. Takes into account an individual"s response criteria into account; conservative and liberal responders are different, and can make for false positives and negatives. Compares standard stimulus to test stimuli by assigning numbers relative to standard. As intensity increases, perceived magnitude increases more slowly than the intensity. As intensity increases, perceived magnitude increases more quickly than the intensity. Light is reflected and focused to create an image on the retina (proximal stimulus) Visible human spectrum is 400 to 700 nanometers.
