scholarly journals How flexible and fast is the focus of attention? Evidence from the Attentional Blink and Lag-1 sparing

2010 ◽  
Vol 10 (7) ◽  
pp. 287-287
Author(s):  
L. N. Jefferies ◽  
S. Ghorashi ◽  
V. Di Lollo
Keyword(s):  
Attentional Blink ◽  
Focus Of Attention ◽  
Lag 1 Sparing

Modality-specific auditory and visual temporal processing deficits

2002 ◽  
Vol 55 (1) ◽  
pp. 23-40 ◽  
Author(s):  
Salvador Soto-Faraco ◽  
Charles Spence
Keyword(s):  
Attentional Blink ◽  
Temporal Processing ◽  
Spatial Location ◽  
Visual Presentation ◽  
Attentional Selection ◽  
The Other ◽  
Repetition Blindness ◽  
Presentation Procedure ◽  
Selection Stage ◽  
Lag 1 Sparing

We studied the attentional blink (AB) and the repetition blindness (RB) effects using an audio-visual presentation procedure designed to overcome several potential methodological confounds in previous cross-modal research. In Experiment 1, two target digits were embedded amongst letter distractors in two concurrent streams (one visual and the other auditory) presented from the same spatial location. Targets appeared in either modality unpredictably at different temporal lags, and the participants’ task was to recall the digits at the end of the trial. We evaluated both AB and RB for pairs of targets presented in either the same or different modalities. Under these conditions both AB and RB were observed in vision, AB but not RB was observed in audition, and there was no evidence of AB or RB cross-modally from audition to vision or vice versa. In Experiment 2, we further investigated the AB by including Lag 1 items and observed Lag 1 sparing, thus ruling out the possibility that the observed effects were due to perceptual and/or conceptual masking. Our results support a distinction between a modality-specific interference at the attentional selection stage and a modality-independent interference at later processing stages. They also provide a new dissociation between the AB and RB.

Fearful expressions of rapidly presented hybrid-faces modulate the lag 1 sparing in the attentional blink

2020 ◽  
Vol 209 ◽  
pp. 103124
Author(s):  
Anna Pecchinenda ◽  
Bianca Monachesi ◽  
Bruno Laeng
Keyword(s):  
Attentional Blink ◽  
Lag 1 Sparing

The attentional blink: why does Lag-1 sparing occur when the dependent measure is accuracy, but Lag-1 deficit when it is RT?

2018 ◽  
Vol 83 (8) ◽  
pp. 1778-1797
Author(s):  
Hayley E. P. Lagroix ◽  
Vincent Di Lollo ◽  
Thomas M. Spalek
Keyword(s):  
Attentional Blink ◽  
Dependent Measure ◽  
Lag 1 Sparing

scholarly journals The Attentional Blink Reveals Serial Working Memory Encoding: Evidence from Virtual and Human Event-related Potentials

2009 ◽  
Vol 21 (3) ◽  
pp. 550-566 ◽  
Author(s):  
Patrick Craston ◽  
Brad Wyble ◽  
Srivas Chennu ◽  
Howard Bowman
Keyword(s):  
Working Memory ◽  
Attentional Blink ◽  
Resource Sharing ◽  
Target Item ◽  
Event Related Potentials ◽  
Visual Presentation ◽  
Memory Encoding ◽  
Distribution Of Resources ◽  
Related Potentials ◽  
Lag 1 Sparing

Observers often miss a second target (T2) if it follows an identified first target item (T1) within half a second in rapid serial visual presentation (RSVP), a finding termed the attentional blink. If two targets are presented in immediate succession, however, accuracy is excellent (Lag 1 sparing). The resource sharing hypothesis proposes a dynamic distribution of resources over a time span of up to 600 msec during the attentional blink. In contrast, the ST2 model argues that working memory encoding is serial during the attentional blink and that, due to joint consolidation, Lag 1 is the only case where resources are shared. Experiment 1 investigates the P3 ERP component evoked by targets in RSVP. The results suggest that, in this context, P3 amplitude is an indication of bottom–up strength rather than a measure of cognitive resource allocation. Experiment 2, employing a two-target paradigm, suggests that T1 consolidation is not affected by the presentation of T2 during the attentional blink. However, if targets are presented in immediate succession (Lag 1 sparing), they are jointly encoded into working memory. We use the ST2 model's neural network implementation, which replicates a range of behavioral results related to the attentional blink, to generate “virtual ERPs” by summing across activation traces. We compare virtual to human ERPs and show how the results suggest a serial nature of working memory encoding as implied by the ST2 model.

scholarly journals The attentional blink and lag 1 sparing are nonspatial

2010 ◽  
Vol 72 (2) ◽  
pp. 317-325 ◽  
Author(s):  
Rasmus Lunau ◽  
Christian N. L. Olivers
Keyword(s):  
Attentional Blink ◽  
Lag 1 Sparing

scholarly journals A Design of Global Workspace Model with Attention: Simulations of Attentional Blink and Lag-1 Sparing

2021 ◽  
pp. 1-29
Author(s):  
Wenjie Huang ◽  
Antonio Chella ◽  
Angelo Cangelosi
Keyword(s):  
Attentional Blink ◽  
Attention Mechanism ◽  
Synchronization Mechanism ◽  
Global Workspace ◽  
Attentional Blink Effect ◽  
Sparing Effect ◽  
Human Brains ◽  
Future Work ◽  
Neuroscience Of Attention ◽  
Lag 1 Sparing

There are many developed theories and implemented artificial systems in the area of machine consciousness, while none has achieved that. For a possible approach, we are interested in implementing a system by integrating different theories. Along this way, this paper proposes a model based on the global workspace theory and attention mechanism, and providing a fundamental framework for our future work. To examine this model, two experiments are conducted. The first one demonstrates the agent’s ability to shift attention over multiple stimuli, which accounts for the dynamics of conscious content. Another experiment of simulations of attentional blink and lag-1 sparing, which are two well-studied effects in psychology and neuroscience of attention and consciousness, aims to justify the agent’s compatibility with human brains. In summary, the main contributions of this paper are (1) Adaptation of the global workspace framework by separated workspace nodes, reducing unnecessary computation but retaining the potential of global availability; (2) Embedding attention mechanism into the global workspace framework as the competition mechanism for the consciousness access; (3) Proposing a synchronization mechanism in the global workspace for supporting lag-1 sparing effect, retaining the attentional blink effect.

scholarly journals Does failure to mask T1 cause lag-1 sparing in the attentional blink?

2008 ◽  
Vol 70 (3) ◽  
pp. 562-570 ◽  
Author(s):  
E. W. MARTIN ◽  
K. L. SHAPIRO
Keyword(s):  
Attentional Blink ◽  
Lag 1 Sparing
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