Joel Lachter

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According to D. E. Broadbent's (1958) selective filter theory, people do not process unattended stimuli beyond the analysis of basic physical properties. This theory was later rejected on the basis of numerous findings that people identify irrelevant (and supposedly unattended) stimuli. A careful review of this evidence, however, reveals strong reasons to(More)
One of the most robust findings in attention research is that the time to name a color is lengthened markedly in the presence of an irrelevant word that spells a different color name: the Stroop effect. The Stroop effect is found even when the word is physically separated from the color, apparently indicating that words can be read outside the focus of(More)
According to Broadbent’s (1958) selective filter theory, people do not process unattended stimuli beyond the analysis of basic physical properties. This theory was later rejected based on numerous findings that people identify irrelevant (and supposedly unattended) stimuli. A careful review of this evidence, however, reveals strong reasons to doubt that(More)
Results from a number of paradigms (including change blindness, inattentional blindness, integration over saccades, and backward masking) suggest that most of the visual information we take in is not retained, even for very short periods of time. This has led some to question whether such information is ever really perceived. We examine this issue using a(More)
This document describes the second human-in-the-loop study in a series that examines the role of a ground operator in enabling single pilot operations (SPO). The focus of this study was decision-making and communication between a distributed crew (airborne pilot and ground operator). A prototype ground station and tools designed to enhance collaboration(More)
NASA’s Flight Deck Display Research Laboratory recently investigated air traffic automation designed to alleviate groundside workload in high traffic environments. This paper examines the data from post-experiment debriefings. We found that pilots are comfortable reviewing automated conflict resolutions, as well as modifying those resolutions before(More)
Since the 1950s, the crew required to fly transport category aircraft has been reduced from five to two. NASA is currently exploring the feasibility of a further reduction to one pilot. In this study we examine the effects of separating the pilots on crew interaction. The results are consistent with earlier research on decision-making between remote groups.(More)
The Federal Aviation Administration hopes to convert air traffic management to Trajectory Based Operations (TBO), under which aircraft flight plans are known to computer systems which aid in scheduling and separation. However, few aircraft flying today have equipment designed to support TBO. We conducted a human-in-the-loop simulation of TBO using current(More)
This paper reports on the performance and workload of pilots participating in a human-in-the-loop simulation of interval management operations during a continuous descent approach (CDA) into Louisville International Airport (SDF). The experiment examined variations in pilot roles and responsibilities in an implementation of interval management automation.(More)