PSYCH 101 Lecture Notes - Lecture 27: Detection Theory, Absolute Threshold, Neural Adaptation
Document Summary
Sensation: the raw sensory data the brain receives from the senses of sight, hearing, smell, taste, balance, touch, and pain. Perception: the process of organizing, interpreting, and giving new meaning to raw data. Stimulus sensation sensory coding (transduction) perception transmitted to the brain) Stimulus is transduced (translated into chemical and electrical signals that are. Transduction: transforming information from external environment into content that the brain can interpret; a process by which sensory receptors produce neural impulses when they receive physical or chemical stimulation. Psychophysics: subfield that examines psychological experiences of physical stimuli. Absolute threshold: the minimum intensity of stimulation that must occur before you experience a sensation. This threshold is not the same for everyone. Detecting a stimulus requires making a judgment about its presence or absence, based on a subjunctive interpretation of ambiguous information. There are four possible outcomes when a participant is asked whether something occurred during a trial.
