TY - JOUR
T1 - Development of a computerized assessment for visual masking
AU - Green, Michael Foster
AU - Nuechterlein, Keith H.
AU - Breitmeyer, Bruno
PY - 2002
Y1 - 2002
N2 - Visual masking provides a highly informative means of assessing the earliest stages of visual processing. This procedure is frequently used in psychopathology research, most commonly in the study of schizophrenia. Deficits in visual masking tasks appear to reflect vulnerability factors in schizophrenia, as opposed to the symptoms of the illness. Visual masking procedures are typically conducted on a tachistoscope, which limits standardization across sites, as well as the number of variables that can be examined in a testing session. Although visual masking can be administered on a computer, most methods used so far have had poor temporal resolution and yielded a limited range of variables. We describe the development of a computerized visual masking battery. This battery includes a staircase procedure to establish an individual's threshold for target detection, and a relatively dense sampling of masking intervals. It includes both forward and backward masking trials for three different masking conditions that have been used previously in experimental psychopathology (target location, target identification with high-energy mask, and target identification with low-energy mask.
AB - Visual masking provides a highly informative means of assessing the earliest stages of visual processing. This procedure is frequently used in psychopathology research, most commonly in the study of schizophrenia. Deficits in visual masking tasks appear to reflect vulnerability factors in schizophrenia, as opposed to the symptoms of the illness. Visual masking procedures are typically conducted on a tachistoscope, which limits standardization across sites, as well as the number of variables that can be examined in a testing session. Although visual masking can be administered on a computer, most methods used so far have had poor temporal resolution and yielded a limited range of variables. We describe the development of a computerized visual masking battery. This battery includes a staircase procedure to establish an individual's threshold for target detection, and a relatively dense sampling of masking intervals. It includes both forward and backward masking trials for three different masking conditions that have been used previously in experimental psychopathology (target location, target identification with high-energy mask, and target identification with low-energy mask.
KW - Backward masking
KW - Bipolar disorder
KW - Neurocognition
KW - Schizophrenia
KW - Visual masking
KW - Visual processing
UR - http://www.scopus.com/inward/record.url?scp=0036349574&partnerID=8YFLogxK
U2 - 10.1002/mpr.126
DO - 10.1002/mpr.126
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C2 - 12459798
AN - SCOPUS:0036349574
SN - 1049-8931
VL - 11
SP - 83
EP - 89
JO - International Journal of Methods in Psychiatric Research
JF - International Journal of Methods in Psychiatric Research
IS - 2
ER -