Potentials recorded during the performance of both verbal and non-verbal auditory target detection tasks

1995 ◽  
Vol 95 (4) ◽  
pp. P98-P99
Author(s):  
S.H. Curry ◽  
C. Pleydell-Pearce
Keyword(s):  
Target Detection ◽  
Auditory Target

18 – Attention dysfunction during visual and auditory target detection task in patients of schizophrenia

2008 ◽  
Vol 98 ◽  
pp. 40
Author(s):  
T. Matsuda ◽  
M. Matsuura ◽  
M. Motoshita ◽  
E. Matsushima ◽  
T. Kojima
Keyword(s):  
Target Detection ◽  
Detection Task ◽  
Auditory Target ◽  
Attention Dysfunction ◽  
Target Detection Task

Neural sources involved in auditory target detection and novelty processing: An event-related fMRI study

2001 ◽  
Vol 38 (1) ◽  
pp. 133-142 ◽  
Author(s):  
Kent A. Kiehl ◽  
Kristin R. Laurens ◽  
Timothy L. Duty ◽  
Bruce B. Forster ◽  
Peter F. Liddle
Keyword(s):  
Target Detection ◽  
Auditory Target ◽  
Fmri Study ◽  
Novelty Processing

scholarly journals Rapid Context-based Identification of Target Sounds in an Auditory Scene

2015 ◽  
Vol 27 (9) ◽  
pp. 1675-1684 ◽  
Author(s):  
Marissa L. Gamble ◽  
Marty G. Woldorff
Keyword(s):  
New York ◽  
Target Detection ◽  
Rapid Identification ◽  
Auditory Target ◽  
Auditory Information ◽  
Attentional Processing ◽  
Target Sound ◽  
Auditory Scene ◽  
Spatially Distributed ◽  
Auditory Search

To make sense of our dynamic and complex auditory environment, we must be able to parse the sensory input into usable parts and pick out relevant sounds from all the potentially distracting auditory information. Although it is unclear exactly how we accomplish this difficult task, Gamble and Woldorff [Gamble, M. L., & Woldorff, M. G. The temporal cascade of neural processes underlying target detection and attentional processing during auditory search. Cerebral Cortex (New York, N.Y.: 1991), 2014] recently reported an ERP study of an auditory target-search task in a temporally and spatially distributed, rapidly presented, auditory scene. They reported an early, differential, bilateral activation (beginning at 60 msec) between feature-deviating target stimuli and physically equivalent feature-deviating nontargets, reflecting a rapid target detection process. This was followed shortly later (at 130 msec) by the lateralized N2ac ERP activation, that reflects the focusing of auditory spatial attention toward the target sound and parallels the attentional-shifting processes widely studied in vision. Here we directly examined the early, bilateral, target-selective effect to better understand its nature and functional role. Participants listened to midline-presented sounds that included target and nontarget stimuli that were randomly either embedded in a brief rapid stream or presented alone. The results indicate that this early bilateral effect results from a template for the target that utilizes its feature deviancy within a stream to enable rapid identification. Moreover, individual-differences analysis showed that the size of this effect was larger for participants with faster RTs. The findings support the hypothesis that our auditory attentional systems can implement and utilize a context-based relational template for a target sound, making use of additional auditory information in the environment when needing to rapidly detect a relevant sound.

Scalp Topography and Intracerebral Sources for ERPs Recorded During Auditory Target Detection

2006 ◽  
Vol 19 (1-2) ◽  
pp. 89-105 ◽  
Author(s):  
Antoine J. Shahin ◽  
Claude Alain ◽  
Terence W. Picton
Keyword(s):  
Target Detection ◽  
Auditory Target ◽  
Scalp Topography

scholarly journals Auditory Target Detection Enhances Visual Processing and Hippocampal Functional Connectivity

2020 ◽  
Author(s):  
Roy Moyal ◽  
Hamid B. Turker ◽  
Wen-Ming Luh ◽  
Khena M. Swallow
Keyword(s):  
Visual Cortex ◽  
Functional Connectivity ◽  
Locus Coeruleus ◽  
Target Detection ◽  
Visual Processing ◽  
Target Tone ◽  
Auditory Target ◽  
Parahippocampal Gyrus ◽  
Subcortical Regions ◽  
Selection Of

AbstractThough dividing one’s attention between two input streams typically impairs performance, detecting a behaviorally relevant stimulus can sometimes enhance the encoding of task-irrelevant information presented at the same time. Previous research has shown that temporal selection of this kind boosts visual cortical activity and incidental memory. An important and yet unanswered question is whether such effects are reflected in processing quality and functional connectivity in visual regions and the hippocampus. In this fMRI study, participants were asked to memorize a stream of images and press a button when they heard an auditory tone of a prespecified pitch. Images could be presented with a target tone, with a distractor tone, or without a tone. Auditory target detection increased activity throughout the ventral visual cortex but lowered it in the hippocampus. These effects were accompanied by a widespread enhancement in functional connectivity between the ventral visual cortex and the hippocampus. Image category classification accuracy was higher on target tone trials than on distractor and no tone trials in the fusiform gyrus and the parahippocampal gyrus. This effect was stronger in clusters whose activity was more correlated with the hippocampus on target tone than on distractor tone trials. In agreement with accounts suggesting that subcortical noradrenergic influences play a role in temporal selection, auditory target detection also caused an increase in locus coeruleus activity and phasic pupil responses. These findings outline a network of cortical and subcortical regions that are involved in the selection and processing of information presented at behaviorally relevant moments.Significance StatementAttention influences the degree to which we remember everyday experiences. This study examines the neural mechanisms involved in committing important events to memory. It links the selection of important information in time (temporal selection) to enhanced functional connectivity between brain regions involved in perception and encoding. It also suggests the involvement of a small brainstem structure, the locus coeruleus (LC), whose degeneration is increasingly associated with cognitive decline in aging. The process of encoding behaviorally relevant events into episodic memory thus involves large-scale, coordinated activation spanning cortical and subcortical regions.

scholarly journals Early, but no late ERP signature of auditory awareness in cross-modal distractor-induced deafness

2021 ◽  
Author(s):  
Lea Kern ◽  
Michael Niedeggen
Keyword(s):  
Target Detection ◽  
Dual Task ◽  
Auditory Target ◽  
Auditory Modality ◽  
Brain Potentials ◽  
Target Event ◽  
Attentional Process ◽  
Frontal Negativity ◽  
Set Up ◽  
Task Irrelevant

Previous research showed that dual-task processes such as the attentional blink are not always transferable from unimodal to cross-modal settings. Here we ask whether such a transfer can be stated for a distractor-induced impairment of target detection, which has been established in vision (distractor-induced blindness, DIB) and was recently observed in the auditory modality (distractor-induced deafness, DID). The current study aimed to replicate the phenomenon in a cross-modal set up. An auditory target indicated by a visual cue should be detected, while task-irrelevant auditory distractors appearing before the cue had to be ignored. Behavioral data confirmed a cross-modal distractor-induced deafness: target detection was significantly reduced if multiple distractors preceded the target. Event-related brain potentials (ERPs) were used to identify the process crucial for target detection. ERPs revealed that successful target report was indicated by a larger frontal negativity around 200 ms. The same signature of target awareness has been previously observed in the auditory modality. In contrast to unimodal findings, P3 amplitude was not enhanced in case of an upcoming hit. Our results add to recent evidence that an early frontal attentional process is linked to auditory awareness, whereas the P3 is apparently not a consistent indicator of target access.

Sign in / Sign up

Export Citation Format

Share Document