Definition: Redundant target paradigm

Cortex ◽  
2021 ◽  
Author(s):  
Doris Schmid ◽  
Thomas Schenk
Keyword(s):  
Redundant Target

Central Visual Persistence as Measured by the Redundant Target Effect

Perception ◽  
1997 ◽  
Vol 26 (1_suppl) ◽  
pp. 259-259 ◽  
Author(s):  
C A Marzi ◽  
G Nitro ◽  
M Prior
Keyword(s):  
Evoked Potential ◽  
Normal Subjects ◽  
Stimulus Onset ◽  
Visual Persistence ◽  
Single Stimulus ◽  
Redundant Target ◽  
Redundant Target Effect ◽  
Speed Of Response ◽  
Target Effect ◽  
Onset Asynchrony

We measured the duration of central visual persistence by testing normal subjects for the redundant target effect (RTE), ie the speeding up of reaction time to redundant visual stimuli in comparison to similar single stimuli. Brief LED-generated flashes were presented to normal subjects either singly or in a pair at peripheral visual field locations (5 or 30 deg along the horizontal meridian). Stimulus pairs could appear either in the same hemifield at different locations or in opposite hemifields with a stimulus onset asynchrony (SOA) ranging between 0 and 100 ms. The subject's task was to press a key as soon as possible following the appearance of either a single stimulus or of the first stimulus in a pair. We found a robust and consistent overall RTE with double stimuli yielding faster RTs than single stimuli for both intrafield and interfield presentations. The effect decreased significantly from 0 ms to 40 ms SOA and at longer SOAs the speed of response to stimulus pairs was indistinguishable from that to a single stimulus. We believe that the longest SOA compatible with a reliable RTE (40 ms) reflects the duration of central persistence. Evoked-potential evidence gathered in our laboratory suggests that the locus of such persistence may be the extrastriate visual cortex.

scholarly journals Audio-Visual Integration in a Redundant Target Paradigm: A Comparison between Rhesus Macaque and Man

2017 ◽  
Vol 11 ◽  
Author(s):  
Peter Bremen ◽  
Rooholla Massoudi ◽  
Marc M. Van Wanrooij ◽  
A. J. Van Opstal
Keyword(s):  
Rhesus Macaque ◽  
Redundant Target ◽  
Visual Integration

Sensory and motor involvement in the enhanced redundant target effect: A study comparing anterior- and totally split-brain individuals

2009 ◽  
Vol 47 (3) ◽  
pp. 684-692 ◽  
Author(s):  
Catherine Ouimet ◽  
Pierre Jolicœur ◽  
Jeff Miller ◽  
Alexia Ptito ◽  
Aldo Paggi ◽  
...  
Keyword(s):  
Redundant Target ◽  
Split Brain ◽  
Redundant Target Effect ◽  
Target Effect

Dual-Task Redundant-Target Processing: The Case of the Limited Capacity Parallel Model

2018 ◽  
Vol 62 (1) ◽  
pp. 661-665
Author(s):  
Stephanie A. Morey ◽  
Nicole A. Thomas ◽  
Jason S. McCarley
Keyword(s):  
Dual Task ◽  
Visual Target ◽  
Race Model ◽  
Tracking Task ◽  
Limited Capacity ◽  
Processing Efficiency ◽  
Redundant Target ◽  
Task Load ◽  
Workload Capacity ◽  
Task Conditions

We examined the effect of a central tracking task on visual target processing efficiency in a combined target detection / manual tracking paradigm. Participants performed a redundant-target task by itself, and concurrently with the tracking task. A measure of workload capacity gauged target processing efficiency. Processing was less efficient than predicted by a standard parallel race model under both levels of task load. However, data suggested no difference in processing efficiency between the single-and dual-task conditions. Our findings provide further evidence that processing capacity for peripheral visual targets is consistently limited but robust against changes to concurrent task load.

Redundant target effect and intersensory facilitation from visual-tactile interactions in simple reaction time

2002 ◽  
Vol 143 (4) ◽  
pp. 480-487 ◽  
Author(s):  
Bettina Forster ◽  
Cristiana Cavina-Pratesi ◽  
Salvatore M. Aglioti ◽  
Giovanni Berlucchi
Keyword(s):  
Reaction Time ◽  
Simple Reaction Time ◽  
Redundant Target ◽  
Simple Reaction ◽  
Intersensory Facilitation ◽  
Redundant Target Effect ◽  
Target Effect

The role of the magnocellular and parvocellular systems in the redundant target effect

2004 ◽  
Vol 158 (2) ◽  
Author(s):  
Massimo Turatto ◽  
Veronica Mazza ◽  
Silvia Savazzi ◽  
CarloA. Marzi
Keyword(s):  
Redundant Target ◽  
Redundant Target Effect ◽  
Target Effect
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