Integration and Interruption in the Masking of Form by Form

Bachmann, Talis; Allïk, Jüri

doi:10.1068/p050079

Cited by 62 publications

(70 citation statements)

References 46 publications

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“…The second delay durations fell in the range of iconic memory. Thus, there is a possibility that even though the retro-cue and probe item did not spatially overlap, a combination of eye movements and the arrival of the probe item may have truncated processing of the retrocue via interruption masking (Bachmann & Allik, 1976;Spencer & Shuntich, 1970;reviewed in Enns & Di Lollo, 2000). The strongest evidence that interruption masking and/or eye movements cannot explain the present data is the eye movement control study (Experiment 1a).…”

Section: Discussionmentioning

confidence: 99%

The mental wormhole: Internal attention shifts without regard for distance

Tanoue

Berryhill

2012

Atten Percept Psychophys

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Attention operates perceptually on items in the environment, and internally on objects in visuospatial working memory. In the present study, we investigated whether spatial and temporal constraints affecting endogenous perceptual attention extend to internal attention. A retro-cue paradigm in which a cue is presented beyond the range of iconic memory and after stimulus encoding was used to manipulate shifts of internal attention. Participants' memories were tested for colored circles (Experiments 1, 2, 3a, 4) or for novel shapes (Experiment 3b) and their locations within an array. In these experiments, the time to shift internal attention (Experiments 1 and 3) and the eccentricity of encoded objects (Experiments 2-4) were manipulated. Our data showed that, unlike endogenous perceptual attention, internal shifts of attention are not modulated by stimulus eccentricity. Across several timing parameters and stimuli, we found that shifts of internal attention require a minimum quantal amount of time regardless of the object eccentricity at encoding. Our findings are consistent with the view that internal attention operates on objects whose spatial information is represented in relative terms. Although endogenous perceptual attention abides by the laws of space and time, internal attention can shift across spatial representations without regard for physical distance.

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Section: Discussionmentioning

confidence: 99%

The mental wormhole: Internal attention shifts without regard for distance

Tanoue

Berryhill

2012

Atten Percept Psychophys

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“…Our aim was to degrade the perceptual representation of the stimuli in the RSVP stream (T1, T2, and distractors) so as to render the task more difficult in the presence of the camouflage mask relative to trials in which the stimuli were presented without the mask. Prior research has shown that such a mask can impair accuracy by degrading the information required to perform the task (Bachmann & Allik, 1976;Brehaut, Enns, & Di Lollo, 1999;Enns, 2004; for a review, see Breitmeyer, 1984). The presence of a camouflage mask should impair performance in the AB and, thus, make the task more difficult (Ouimet & Jolicoeur, in press).…”

Section: Methodsmentioning

confidence: 99%

Short-term consolidation of individual identities leads to Lag-1 sparing.

Dell’Acqua

Jolicœur

Pascali

et al. 2007

Journal of Experimental Psychology: Human Perception and Perfor

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A rapid serial visual presentation (RSVP) technique was used to investigate the role of the nature of processing carried out on targets in the Lag-1 sparing phenomenon. Lag-1 sparing refers to a higher accuracy in the task associated with the 2nd target when the 2 targets are immediately successive in the RSVP stream relative to when there are 1 or 2 intervening items between the targets. In 5 experiments, 0, 1, or 2 digits were embedded with equal probability in RSVP streams of letter distractors. In 4 of the experiments, subjects identified the digits in some blocks of trials, and they counted the number of presented digits in other blocks. In a 5th experiment, the counting task was replaced with a digit-sum task. The most interesting results were those from trials with 2 digits. Lag-1 sparing was always evident when the task involved the explicit identification of the digits. In addition, Lag-1 sparing was evident when subjects were required to sum 2 digits or to count digits of a prespecified parity subclass (e.g., count only even digits). In striking contrast, Lag-1 sparing was absent when subjects were required to count the digits independent of their parity subclass. These results suggest that the occurrence of Lag-1 sparing depends on the type of mental representation that must be generated on the basis of target information.

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“…To investigate perceptual stimulus processing, we employed a backward masking procedure (Breitmeyer, 1984;Turvey, 1973) and presented a random visual noise pattern shortly after the target stimulus. This kind of masking is known to selectively influence early perceptual stimulus processing (see, e.g., Bachmann & Allik, 1976;Smith & Wolfgang, 2004;Turvey, 1973). The square was presented for three different time intervals (32, 48, or 64 msec) before being masked.…”

Section: University Of Tübingen Tübingen Germanymentioning

confidence: 99%