Temporal Characterization of the Neural Correlates of Perceptual Decision Making in the Human Brain
Reads0
Chats0
TLDR
The first non-invasive neural measurements of perceptual decision making, via single-trial EEG analysis, that lead to neurometric functions predictive of psychophysical performance for a face versus car categorization task are reported.Abstract:
Single and multi-unit recordings in primates have identified spatially localized neuronal activity correlating with an animal's behavioral performance. Due to the invasive nature of these experiments, it has been difficult to identify such correlates in humans. We report the first non-invasive neural measurements of perceptual decision making, via single-trial EEG analysis, that lead to neurometric functions predictive of psychophysical performance for a face versus car categorization task. We identified two major discriminating components. The earliest correlating with psychophysical performance was consistent with the well-known face-selective N170. The second component, which was a better match to the psychometric function, did not occur until at least 130 ms later. As evidence for faces versus cars decreased, onset of the later, but not the earlier, component systematically shifted forward in time. In addition, a choice probability analysis indicated strong correlation between the neural responses of the later component and our subjects' behavioral judgements. These findings demonstrate a temporal evolution of component activity indicative of an evidence accumulation process which begins after early visual perception and has a processing time that depends on the strength of the evidence.read more
Citations
More filters
Journal ArticleDOI
The Neural Basis of Decision Making
TL;DR: This work focuses on simple decisions that can be studied in the laboratory but emphasize general principles likely to extend to other settings, including deliberation and commitment.
Journal ArticleDOI
Beyond mind-reading: multi-voxel pattern analysis of fMRI data
TL;DR: How researchers are using multi-voxel pattern analysis methods to characterize neural coding and information processing in domains ranging from visual perception to memory search is reviewed.
Journal ArticleDOI
The neural systems that mediate human perceptual decision making.
TL;DR: Findings from human neuroimaging studies in conjunction with data analysis methods that can directly link decisions and signals in the human brain on a trial-by-trial basis are reviewed to lead to a new view about the neural basis of human perceptual decision-making processes.
Journal ArticleDOI
Characterizing the dynamics of mental representations: the temporal generalization method
TL;DR: By testing at which moment a specific mental content becomes decodable in brain activity, this work can characterize the time course of cognitive codes and provide a novel way to understand how mental representations are manipulated and transformed.
Journal ArticleDOI
Does physical interstimulus variance account for early electrophysiological face sensitive responses in the human brain? Ten lessons on the N170
Bruno Rossion,Corentin Jacques +1 more
TL;DR: By taking Thierry et al.'s study as an exemplar case of what should not be done in ERP research of visual categorization processes, clarifications are provided on a number of methodological and theoretical issues about the N170 and its largest amplitude to faces.
References
More filters
Book
Signal detection theory and psychophysics
David M. Green,John A. Swets +1 more
TL;DR: This book discusses statistical decision theory and sensory processes in signal detection theory and psychophysics and describes how these processes affect decision-making.
Journal ArticleDOI
The Fusiform Face Area: A Module in Human Extrastriate Cortex Specialized for Face Perception
TL;DR: The data allow us to reject alternative accounts of the function of the fusiform face area (area “FF”) that appeal to visual attention, subordinate-level classification, or general processing of any animate or human forms, demonstrating that this region is selectively involved in the perception of faces.
Journal ArticleDOI
Speed of processing in the human visual system.
TL;DR: The visual processing needed to perform this highly demanding task can be achieved in under 150 ms, and ERP analysis revealed a frontal negativity specific to no-go trials that develops roughly 150 ms after stimulus onset.
Journal ArticleDOI
Electrophysiological studies of face perception in humans
TL;DR: The differential sensitivity of N170 to eyes in isolation suggests that N170 may reflect the activation of an eye-sensitive region of cortex, and the voltage distribution of N 170 over the scalp is consistent with a neural generator located in the occipitotemporal sulcus lateral to the fusiform/inferior temporal region that generates N200.
Related Papers (5)
EEGLAB: an open source toolbox for analysis of single-trial EEG dynamics including independent component analysis.
Arnaud Delorme,Scott Makeig +1 more