ANHYPNIA By N., Pam M.S. - April 7, 2013 n. describes deficits, or a complete lack, of mental imagery. See also anilingus. ANHYPNIA: "A person diagnosed with anhypnia is unable to generate or use mental images to remember things. " Related Psychology Terms MENTAL ASTHENIA SPORTS IMAGERY MENTAL MATURITY BIOINFORMATIONAL THEORY APATHY SPONTANEOUS IMAGERY SELF-INSTRUCTIONAL IMAGERY SEMANTIC CODE MOTOR PROCESS THEORY OF IMAGERY ASOMATOGNOSIA Cite this page: N., Pam M.S., "ANHYPNIA," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/anhypnia/ (accessed August 3, 2020).