Choice time, or disjunctive reaction time (RT), has been found to be a linear increasing function of the average amount of information transmitted (H t ) per stimulus-response event in a variety of tasks (e.g., Gregg, 1954;Hick, 1952;Hyman, 1953). Hick found that the same function fitted the data when errorless performance was required and also when S speeded up his responses to the point where a substantial number of errors occurred. Hyman, demanding errorless performance, found that RT 1 This report is a consolidation of data from two master's theses by Brainard and Irby; these were completed in 1956 and 19S7 as part of a general research program for which P. M. Fitts and E. A.
Ratterch acccj tiplwhed undfrcontrac i-AatUkJIuniri to to the Department of Army ial Institut« ri NOTICES DI8TRHUTION: Prinwry dinribution of thit report hai bwn madt by ARI. Pica« addrtn corraipondtnc* oowctrnlna diitribution of raporti to: U. S. Army Rmarch Irmitutr for th* Bttiavioral and Social Scianoat, ATTN: RDMR-f, 1300 Wlltoo Boultvard, Arlingtoo, Virginia 22308. piNAL DI8PO&ITIQW: Th« raport may ba dMroyad Mhan it it no longar naadad. ttw U. 8. Army Raaaarch Inttitutt for tha Bahavioral and Social Scianoat. do not return it to lyiTE: Tha findings In thii raport ara not to ba oonnruad at an officlat Oapartmant of tha Army position, unlats so dosignatod by othar authorliad documants. IV \-^ .-. i i i^imuimipKii i .iimwum,.., i llwwt i ■■"*-'*■-•-■'"-Uaalaaaitlai bü-KotW l»curity CU»>iftcition DOCUMENT CONTROL DATA-RID (t»tMlir tlmttlUcilit »I nil; tgjf »I tMmat mn4 IndtMlitj mnauilam mutt k» wiffW whii Oi» o.« .»;. K;at? JM ,rt»a«ife3.i I. OBIOINATINO ACTIVITY (CwywaMMAarJ Battelle Memorial Institute, Columbus, Ohio Army Research Institute for the Behavioral and Social Sciences, Arlington, VA ■••. ««POST lieUKITV CL*»ilFie»TION Unclassified M. amour t. nmponr TITLI TRAINING TECHNIQUES FOR RAPID TARGET DETECTION 4. OKteniPTivl NOT«! (Typ* »I rtpoti mnd Intlutln da.«*; t. «uTMOKiti (flnf mm», alSER lnlll»l, la
The purpose of this study was to empirically re2s•te the probabJlity of correctly identifying targets in television imagery to the number of scanning lines traversing the target. Five different targets (scaled models) were investigated: an aircraft, oil storage tanks, a bridge and two buildings. Each target was located in different positions and orientations on a scaled terrain model. A television system scanned
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