Judgments about the time to contact between two objects during simulated self-motion.

DeLucia, Patricia R.; Meyer, Les E.

doi:10.1037/0096-1523.25.6.1813

Cited by 16 publications

(18 citation statements)

References 53 publications

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“…Several studies indicate the significant role of background layout in the perception of objects and object‐relations (e.g. Blakemore & Snowden, 2000; DeLucia & Meyer, 1999; Johnson & Aslin, 1996; Lenoir, Savelsbergh, Musch, Thiery, Uyttenhove, & Janssens, 1999). It would be interesting to investigate whether, and when, infants pick up this information, particularly when certain episodes of an event are occluded.…”

Section: Discussionmentioning

confidence: 99%

Development of the perception of object containment in 9‐ to 16‐month‐olds

Dejonckheere

Smitsman²,

Denève

2006

British J of Dev Psycho

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In the present study, 9-, 12-and 16-month-old infants were familiarized to a block that was repeatedly lowered into a container and lifted from that container again. In the subsequent test phase, the block passed through the container opening either without making contact with the container rim or colliding with the rim in three places but 'magically' passing through. In Experiment 1 an opaque black screen was positioned just below the blocks' starting position. In Experiment 2 the screen was put at the height of the container rim and thus occluded the critical arrival phase of the trajectory. Results showed that looking times depended on what infants perceived as happening at the height of the rim and not on what they could have perceived before the block reached the opening, such as the absolute size of the objects. In contrast, older infants looked longer at an obstructed passage of the block into the container, irrespective of the position of the screen.An important task for the visual system of the developing infant is to disentangle the existence and continuity of solid objects from the myriad of changes in luminance and colour that fill the optic array. A related task concerns the discovery and differentiation of the many spatial and temporal relations that objects are embedded in. Objects do not fill surroundings in isolation but are always inside, in front of, behind or on top of other objects and surfaces. Moreover, as entities of surfaces move as a whole without losing integrity, they may change relations with and affect the state of other objects. In such cases, spatiotemporal relations become functional. Discovery of these functional relations is an important achievement for the infant. It enables the child to anticipate the outcome of events and goal directed actions (Hauf, Elsner, & Aschersleben, 2004). In combination with developing manipulative skills, it also enables infants to learn to control daily events and actions. Control arises when the child begins to take advantage of the many functional relations in which objects can be embedded.

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Section: Discussionmentioning

confidence: 99%

Development of the perception of object containment in 9‐ to 16‐month‐olds

Dejonckheere

Smitsman²,

Denève

2006

British J of Dev Psycho

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“…From an anthropological perspective, Hall (1983: 3) notes that Americans and Japanese are nearly mirror-images of each other in the way individuals from these two cultures perceive and think about time. Levine (1997) (De Long, 1981;Hornik, 1984;Vitulli & Rowe, 1999) or how much time elapsed before a particular event occurred (DeLucia & Meyer, 1999). In a detailed account of hospital life, Zerubavel (1979) describes the simultaneous linearity and cyclical nature of time rhythms attended to by various personnel.…”

Section: Literature Reviewmentioning

confidence: 99%

The Effect Of Individual Perceptions of Deadlines on Team Performance

Waller

Conte

Gibson

et al. 2001

AMR

163

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The focus of this paper concerns perceptions of deadlines among team members, and how these perceptions influence team performance under deadline conditions. Based on a review of existing literature, we propose that two time-oriented individual differences -time urgency and time perspective -influence team members' perceptions of deadlines. We present propositions that describe how time urgency and time perspective affect individuals' deadline perceptions and subsequent deadline-oriented behaviors, and how different deadline perceptions and behaviors among team members affect the ability of teams to meet deadlines. The paper closes with implications for existing theory and future research.

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“…Some of them showed no effects of the particular backgrounds used (DeLucia & Meyer, 1999;McLeod & Ross, 1983;Schiff & Detwiler, 1979), whereas others found strong effects (e.g., Gray & Regan, 2000). For instance, in the classic study by Schiff and Detwiler (1979), a filmed animated approach of a black form on a screen was used to examine effects of different backgrounds on TTC judgments.…”

Section: Background Effectsmentioning

confidence: 99%

“…This is supported by effects of the size of visual obstacles, observer speed, and edge rate on judged TTC. Likewise, DeLucia and Meyer (1999) state that factors other than optical TTC information are required to model perceived collision. Such models are likely to be based on parameters that are less complex than tau, such as image velocity (Kerzel, Hecht, & Kim, 1999), velocity combined with distance (Smeets, Brenner, Trébuchet, & Mestre, 1996), or expansion rate (Flach, Smith, & Stanard, in press).…”

Section: Tau Theory and Samplingmentioning

confidence: 99%

The impact of spatiotemporal sampling on time-to-contact judgments

Hecht¹,

Kaiser

Savelsbergh

et al. 2002

Perception & Psychophysics

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When motion in the frontoparallel plane is temporally sampled, it is often perceivedto be slower than its continuous counterpart. This finding stands in contrast to humans' ability to extrapolate and anticipate constant-velocitymotion. We investigated whether this sampling bias generalizesto motion in the sagittal plane (i.e., objects approaching the observer).We employed a paradigm in which observers judged the arrival time of an oncoming object. We found detrimental effects of time sampling on both perceived time to contact and time to passage. Observers systematically overestimated the time it would take a frontally approaching object to intersect their eye plane. To rule out artifactsinherent in computer simulation, we replicated the experiment, using real objects. The bias persisted and proved to be robust across a large range of temporal and spatial variations. Energy and pooling mechanisms are discussed in an attempt to understand the effect.

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Judgments about the time to contact between two objects during simulated self-motion.

Cited by 16 publications

References 53 publications

Development of the perception of object containment in 9‐ to 16‐month‐olds

Development of the perception of object containment in 9‐ to 16‐month‐olds

The Effect Of Individual Perceptions of Deadlines on Team Performance

The impact of spatiotemporal sampling on time-to-contact judgments

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