scholarly journals Multisensory processing in the redundant-target effect: A behavioral and event-related potential study

2005 ◽  
Vol 67 (4) ◽  
pp. 713-726 ◽  
Author(s):  
Matthias Gondan ◽  
Birgit Niederhaus ◽  
Frank Rösler ◽  
Brigitte Röder
Keyword(s):  
Multisensory Processing ◽  
Event Related Potential ◽  
Redundant Target ◽  
Redundant Target Effect ◽  
Potential Study ◽  
Target Effect

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.

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

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

Task dependent anatomical connections underlie multisensory processing

2012 ◽  
Vol 25 (0) ◽  
pp. 8
Author(s):  
David Brang ◽  
Zack Taich ◽  
Steven A. Hillyard ◽  
Vilayanur S. Ramachandran
Keyword(s):  
Dynamic Range ◽  
Parietal Lobe ◽  
Diffusion Tensor ◽  
Multisensory Processing ◽  
Redundant Target Effect ◽  
Target Effect ◽  
White Matter Connectivity ◽  
Multisensory Information ◽  
The Relationship ◽  
Multisensory Processes

Our senses interact in daily life through multisensory integration, facilitating perceptual processes and behavioral responses. Numerous multisensory regions have been identified in humans and animals, raising the question of whether a single mechanism can support the dynamic range of experiences and behaviors multisensory processing engenders. The most common neural mechanisms proposed to underlie multisensory processing include anatomical connections directly linking early sensory areas, indirect connections to higher-order multisensory regions, and functional connectivity between cortical areas. Here we examine the relationship between white matter connectivity, as assessed with diffusion tensor imaging and individual differences in two divergent forms of multisensory processing: the redundant-target effect (RTE), in which subjects’ behavior is facilitated by congruent multisensory information, and the sound-induced illusory flash (SIIF) paradigm, in which incongruent multisensory information elicits a novel percept. Behavioral results demonstrated strong intra-subject reliability of the RTE and SIIF paradigms, but no correlation in performance between the two tasks. Consistent with this behavioral finding, we identified distinct anatomical networks underlying these two forms of multisensory processing. Using a whole-brain analysis and contrasting anatomical models of multisensory processing, increased behavioral performance on the RTE was associated with increased connectivity between the superior parietal lobe and early sensory regions. Conversely, increased incidence of illusion on the SIIF paradigm was associated with increased connectivity directly between early auditory and visual areas. These results implicate a broad network of anatomical connections involved in task-dependent multisensory processes.

Coactive Processing of Dimensionally Redundant Targets Within the Auditory Modality?

2011 ◽  
Vol 58 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Anja Fiedler ◽  
Hannes Schröter ◽  
Rolf Ulrich
Keyword(s):  
Two Dimensions ◽  
Auditory Stimuli ◽  
Visual Modality ◽  
Auditory Modality ◽  
Tone Frequency ◽  
Redundant Target ◽  
Redundant Target Effect ◽  
Target Effect ◽  
Previous Reaction ◽  
Redundant Targets

Previous reaction time studies have demonstrated coactivation processes within the visual modality for redundant stimuli that differ in two dimensions (e.g., shape and color). The present study provides novel results of analogous processes within the auditory modality. A redundant-target effect (RTE) was obtained in a Go/NoGo experiment using tones that differed in location and/or frequency. Participants were asked to respond to a specific tone location (e.g., left) and/or tone frequency (e.g., 200 Hz) of auditory stimuli. For redundant targets (e.g., a 200 Hz tone presented to the left), an RTE was observed which was too large to be explained by mere statistical facilitation. Therefore, responses to redundant targets were triggered by a combined activation of the target dimensions. The results are consistent with the modular hybrid account of Mordkoff and Yantis (1993) .

Redundant target effect and the processing of colour and luminance

2008 ◽  
Vol 187 (1) ◽  
pp. 153-160 ◽  
Author(s):  
N. Ridgway ◽  
M. Milders ◽  
A. Sahraie
Keyword(s):  
Redundant Target ◽  
Redundant Target Effect ◽  
Target Effect

scholarly journals The redundant target effect is affected by modality switch costs

2004 ◽  
Vol 11 (2) ◽  
pp. 307-313 ◽  
Author(s):  
Matthias Gondan ◽  
Kathrin Lange ◽  
Frank Rösler ◽  
Brigitte Röder
Keyword(s):  
Redundant Target ◽  
Redundant Target Effect ◽  
Switch Costs ◽  
Target Effect
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