The effect of dynamic visual noise on brain hemodynamic response during a concrete word production task

2014 ◽  
Vol 94 (2) ◽  
pp. 221-222
Author(s):  
Masahiro Takamura ◽  
Mika Nishimoto ◽  
Shunsuke Hayashi ◽  
Fumie Yamamoto ◽  
Makoto Miyatani
Keyword(s):  
Hemodynamic Response ◽  
Concrete Word ◽  
Word Production ◽  
Visual Noise ◽  
Dynamic Visual Noise ◽  
Production Task

Dynamic Visual Noise Affects Visual Short-Term Memory for Surface Color, but not Spatial Location

2010 ◽  
Vol 57 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Kevin Dent
Keyword(s):  
Short Term Memory ◽  
Spatial Location ◽  
Visual Noise ◽  
Dynamic Visual Noise ◽  
Short Term ◽  
Surface Color ◽  
Term Memory ◽  
Visual Short Term Memory ◽  
Experimental Tool ◽  
Spatial Locations

In two experiments participants retained a single color or a set of four spatial locations in memory. During a 5 s retention interval participants viewed either flickering dynamic visual noise or a static matrix pattern. In Experiment 1 memory was assessed using a recognition procedure, in which participants indicated if a particular test stimulus matched the memorized stimulus or not. In Experiment 2 participants attempted to either reproduce the locations or they picked the color from a whole range of possibilities. Both experiments revealed effects of dynamic visual noise (DVN) on memory for colors but not for locations. The implications of the results for theories of working memory and the methodological prospects for DVN as an experimental tool are discussed.

Coherent motion and stereopsis in dynamic visual noise

1977 ◽  
Vol 17 (8) ◽  
pp. 903-910 ◽  
Author(s):  
Joseph J. Mezrich ◽  
Albert Rose
Keyword(s):  
Visual Noise ◽  
Coherent Motion ◽  
Dynamic Visual Noise

scholarly journals Semiotic spaces in antidiscriminatory political discourse: Naming practices as indexes

2019 ◽  
Vol 48 (5) ◽  
pp. 721-743
Author(s):  
Mats Landqvist
Keyword(s):  
Language Policy ◽  
Public Discourse ◽  
Concrete Word ◽  
Word Production ◽  
Language Policy And Planning ◽  
Word Meanings ◽  
Production Policy ◽  
New Concepts ◽  
Meaning Production ◽  
Policy And Planning

ABSTRACTThis article explores the semiotic spaces occupied by organizations working against discrimination in Sweden. Expressions of identity, norm critique, and political goals are studied in relation to word production and language policy and planning. The study departs from interviews with representatives from three organizations within the hbtqi, antiracist, and disability movements. Other resources connected to them have also been analyzed, such as glossaries. Theoretically, this study draws on Yuri Lotman's concept of semiospheres, allowing the analysis to weigh in the whole semiotic process, including meaning production, policy work, and concrete word production. This approach completes an analysis of indexical orders. The results show that (a) organizations are aware of the importance of linguistic choices, (b) when new concepts and words are spread to the public, tension can arise and sometimes objections, and (c) word meanings change when used in public discourse. (Language policy and planning, semiosphere, indexical order, hbtqi, antiracism, disability, discrimination)

Interactive skills and individual differences in a word production task

AI & Society ◽  
2010 ◽  
Vol 25 (4) ◽  
pp. 433-439 ◽  
Author(s):  
Frédéric Vallée-Tourangeau ◽  
Miles Wrightman
Keyword(s):  
Individual Differences ◽  
Word Production ◽  
Production Task

scholarly journals Catch that word: interactivity, serendipity and verbal fluency in a word production task

2020 ◽  
Author(s):  
Wendy Ross ◽  
Frédéric Vallée-Tourangeau
Keyword(s):  
Problem Solving ◽  
Beneficial Effect ◽  
Performance Measures ◽  
Verbal Fluency ◽  
Word Production ◽  
Cognitive Resources ◽  
Production Task ◽  
Full Sample ◽  
Mental Resources ◽  
At Will

AbstractProblem solving outside of the cognitive psychologist’s lab unfolds in an environment rich with bodily gesture and material artefacts. We examine this meshwork of internal mental resources, embodied actions and environmental affordances through the lens of a word production task with letter tiles. Forty participants took part in the study which contrasted performance in a high interactivity condition (where participants were able to move letter tiles at will), a low interactivity condition (where movements were restrained) and a shuffle condition (where participants could not move the tiles but were allowed to randomly rearrange the array). Participants were also video recorded to facilitate coding of behaviour. While aggregate performance measures revealed a marginal impact of interactivity on performance, when the participants’ behaviour was taken into account, interactivity had a consistent and statistically significant beneficial effect. Detailed, exploratory examination of a subsample of participants informed the formulation of additional hypotheses tested across the full sample: the luckiness of the shuffle in that condition significantly predicted the number of words produced and a more efficient strategy was significantly easier to enact in the high interactivity condition. Additionally, two detailed case studies revealed several moments when accidental changes to the letter tile array offered unplanned words reflecting a serendipitous coagency as well as many moments when environmental chance was ignored. These data and observations indicate that interactivity, serendipity, and internal cognitive resources determine problem-solving performance in this task.

Interocular Delay Produces Depth in Subjectively Moving Noise Patterns

1980 ◽  
Vol 32 (3) ◽  
pp. 387-395 ◽  
Author(s):  
M. J. Morgan ◽  
Roger Ward
Keyword(s):  
Apparent Motion ◽  
Visual Noise ◽  
Moving Target ◽  
Dynamic Visual Noise ◽  
Spatial Disparity ◽  
Depth Effect ◽  
Retinal Disparity ◽  
As If

Brief apparent motion sequences were introduced into a dynamic visual dot display by spatially shifting selected dots between successive frames. This causes the display to look as if it is drifting continuously in one direction. When such a display is observed with an interocular delay the drifting dots appear to be displaced in depth, even though there is no conventional retinal disparity in the display. We found that the magnitude of this depth shift increased with the duration of the apparent motion sequences. With sequences of five or more frames duration the depth effect was very similar to that which would have been predicted with a continuously moving target. With briefer sequences the size of the depth effect decreased rapidly. We suggest that apparent motion cascades form the basis of Tyler's dynamic visual noise stereophenomenon, and we question his “random spatial disparity” hypothesis.

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