Accession Number : ADA261445


Title :   Neuromagnetic Investigation of Cortical Regions Underlying Short-Term Memory


Descriptive Note : Rept. for 1 Jul 1991-30 Jun 1992,


Corporate Author : NEW YORK UNIV NY


Personal Author(s) : Lu, Z -L ; Williamson, S J ; Kaufman, L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a261445.pdf


Report Date : 20 Dec 1992


Pagination or Media Count : 8


Abstract : Magnetic source imaging (MSI) makes it possible to identify the cortical area in the human brain whose activity reflects the decay of sensory storage of information about sounds (echoic memory). The lifetime for decay of the neuronal activation trace in primary auditory cortex is found to range from 0.8 sec to 3.4 sec for the subjects studied. Extensive behavioral studies that determine the duration of memory for the loudness of a tone show that these physiological measures predict the lifetime of echoic memory to within the uncertainty of 0.2 sec for each of the subjects.


Descriptors :   *SOUND , *AUDIO TONES , *LOUDNESS , *CEREBRAL CORTEX , ACTIVATION , BRAIN , HUMANS , STORAGE , DECAY , MEDICAL RESEARCH , PSYCHOLOGICAL TESTS , MEMORY(PSYCHOLOGY) , MAGNETIC RESONANCE


Subject Categories : Psychology
      Anatomy and Physiology
      Medicine and Medical Research


Distribution Statement : APPROVED FOR PUBLIC RELEASE