Visual perception processing in a hierarchical control system :

Chaconas, Karen

doi:10.6028/nist.tn.1260

Cited by 10 publications

(8 citation statements)

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“…Due to the complexity of these activities, a level is required to "servo" thresholds and filter parameters for this image processing. (See [5] for details. )…”

Section: Note On Nasremmentioning

confidence: 99%

“…There is only one job assignment module for a level, but there may be several planners and executors within a level [1, p. 28]. Each of the task decomposition modules has a well-defined role in the control system as described in [1][2][3]5]. The job assignment, planning, and execution modules are "atomic" elements of an architecture design by definition.…”

Section: The Detailed Architecturementioning

confidence: 99%

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Note on NASREM implementation

Fiala¹

1990

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“…Due to the complexity of these activities, a level is required to "servo" thresholds and filter parameters for this image processing. (See [5] for details. )…”

Section: Note On Nasremmentioning

confidence: 99%

Section: The Detailed Architecturementioning

confidence: 99%

Note on NASREM implementation

Fiala¹

1990

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“…The third reason for us to explore the existence of a mnemonic digit-induced NTA is based on many previous studies (Chacones and Nashman, 1989; Owen and Evans, 1996; Herwig et al, 2007) indicating qualitatively different mechanisms between the perceputal/concurrent, sensory-based processing and the mnemonic, postsensory-based processing. For example, Sheth and Shimojo (2003) demonstrated that visual context, such as surround motion, may have similar or opposite effects on spatial perception and spatial WM, depending on the strength of the stimulus.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Perceptual/Concurrent and Mnemonic Digits on Temporal Processing: A Congruency Effect of Numerical Magnitudes

et al. 2017

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Task-irrelevant stimulus numbers can automatically modulate concurrent temporal tasks——leading to the phenomenon of number-time association (NTA). Recent research provides converging evidence that the NTA occurs at the stage of temporal memory. Specifically, a reference memory containing encoded duration information can be modified by perceptual/concurrent digits, i.e., a perceptual/concurrent digit-induced NTA. Here, with five experiments, we investigated whether another working memory (WM)-related mechanism was involved in the generation of NTAs and how this memory-induced NTA was related with the perception-induced NTA. We first explored whether similar NTA effects existed for mnemonic digits which disappeared before time encoding but were actively maintained in WM, i.e., a mnemonic digit-induced NTA. Experiments 1–3 demonstrated both types of NTAs. Further, we revealed a close relationship between the two types of NTAs in two contexts. First, the mnemonic digit-induced NTA also relied on a perceptual number-time co-occurrence at time encoding. We found that the mnemonic digits influenced subsequent temporal processing when a task-irrelevant constant number ‘5’ was presented during target encoding, but not when a non-numerical symbol was presented, suggesting that temporal representations in the reference memory could be accessed and modified by both sensory and postsensory numerical magnitudes through this number-time co-occurrence. Second, the effects of perceptual and mnemonic digits on temporal reproduction could cancel each other out. A congruency effect for perceptual and mnemonic digits (relying on memorization requirement) was demonstrated in Experiments 4 and 5. Specifically, a typical NTA was observed when the magnitudes of memorized and the perceptual/concurrent digits were congruent (both were large or small numbers), but not when they were incongruent (one small and one large numbers). Taken together, our study sheds new light on the mechanism of NTA.

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“…The following section suggests alternative strategies for using these sensors to better advantage. 6. Future Strategies…”

Section: Physical Configurationmentioning

confidence: 99%