Expectation and attention increase the integration of top-down and bottom-up signals in perception through different pathways

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Perception likely results from the interplay between sensory information and top-down signals. In this electroencephalography (EEG) study, we utilised the hierarchical frequency tagging (HFT) method to examine how such integration is modulated by expectation and attention. Using intermodulation (IM) components as a measure of nonlinear signal integration, we show in three different experiments that both expectation and attention enhance integration between top-down and bottom-up signals. Based on a multispectral phase coherence (MSPC) measure, we present two direct physiological measures to demonstrate the distinct yet related mechanisms of expectation and attention, which would not have been possible using other amplitude-based measures. Our results link expectation to the modulation of descending signals and to the integration of top-down and bottom-up information at lower levels of the visual hierarchy. Meanwhile, the results link attention to the modulation of ascending signals and to the integration of information at higher levels of the visual hierarchy. These results are consistent with the predictive coding account of perception.

Original languageEnglish
Article numbere3000233
Number of pages28
JournalPLoS Biology
Volume17
Issue number4
DOIs
Publication statusPublished - 30 Apr 2019

Keywords

  • attention
  • electroencephalography
  • coding mechanisms
  • sensory perception
  • vision
  • signal processing
  • cognitive science
  • evoked potentials

Cite this

@article{eddef4377f3f474d9289ba6fee33764e,
title = "Expectation and attention increase the integration of top-down and bottom-up signals in perception through different pathways",
abstract = "Perception likely results from the interplay between sensory information and top-down signals. In this electroencephalography (EEG) study, we utilised the hierarchical frequency tagging (HFT) method to examine how such integration is modulated by expectation and attention. Using intermodulation (IM) components as a measure of nonlinear signal integration, we show in three different experiments that both expectation and attention enhance integration between top-down and bottom-up signals. Based on a multispectral phase coherence (MSPC) measure, we present two direct physiological measures to demonstrate the distinct yet related mechanisms of expectation and attention, which would not have been possible using other amplitude-based measures. Our results link expectation to the modulation of descending signals and to the integration of top-down and bottom-up information at lower levels of the visual hierarchy. Meanwhile, the results link attention to the modulation of ascending signals and to the integration of information at higher levels of the visual hierarchy. These results are consistent with the predictive coding account of perception.",
keywords = "attention, electroencephalography, coding mechanisms, sensory perception, vision, signal processing, cognitive science, evoked potentials",
author = "Noam Gordon and Naotsugu Tsuchiya and Roger Koenig-Robert and Jakob Hohwy",
year = "2019",
month = "4",
day = "30",
doi = "10.1371/journal.pbio.3000233",
language = "English",
volume = "17",
journal = "PLoS Biology",
issn = "1544-9173",
publisher = "Public Library of Science",
number = "4",

}

Expectation and attention increase the integration of top-down and bottom-up signals in perception through different pathways. / Gordon, Noam; Tsuchiya, Naotsugu; Koenig-Robert, Roger; Hohwy, Jakob.

In: PLoS Biology, Vol. 17, No. 4, e3000233, 30.04.2019.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Expectation and attention increase the integration of top-down and bottom-up signals in perception through different pathways

AU - Gordon, Noam

AU - Tsuchiya, Naotsugu

AU - Koenig-Robert, Roger

AU - Hohwy, Jakob

PY - 2019/4/30

Y1 - 2019/4/30

N2 - Perception likely results from the interplay between sensory information and top-down signals. In this electroencephalography (EEG) study, we utilised the hierarchical frequency tagging (HFT) method to examine how such integration is modulated by expectation and attention. Using intermodulation (IM) components as a measure of nonlinear signal integration, we show in three different experiments that both expectation and attention enhance integration between top-down and bottom-up signals. Based on a multispectral phase coherence (MSPC) measure, we present two direct physiological measures to demonstrate the distinct yet related mechanisms of expectation and attention, which would not have been possible using other amplitude-based measures. Our results link expectation to the modulation of descending signals and to the integration of top-down and bottom-up information at lower levels of the visual hierarchy. Meanwhile, the results link attention to the modulation of ascending signals and to the integration of information at higher levels of the visual hierarchy. These results are consistent with the predictive coding account of perception.

AB - Perception likely results from the interplay between sensory information and top-down signals. In this electroencephalography (EEG) study, we utilised the hierarchical frequency tagging (HFT) method to examine how such integration is modulated by expectation and attention. Using intermodulation (IM) components as a measure of nonlinear signal integration, we show in three different experiments that both expectation and attention enhance integration between top-down and bottom-up signals. Based on a multispectral phase coherence (MSPC) measure, we present two direct physiological measures to demonstrate the distinct yet related mechanisms of expectation and attention, which would not have been possible using other amplitude-based measures. Our results link expectation to the modulation of descending signals and to the integration of top-down and bottom-up information at lower levels of the visual hierarchy. Meanwhile, the results link attention to the modulation of ascending signals and to the integration of information at higher levels of the visual hierarchy. These results are consistent with the predictive coding account of perception.

KW - attention

KW - electroencephalography

KW - coding mechanisms

KW - sensory perception

KW - vision

KW - signal processing

KW - cognitive science

KW - evoked potentials

UR - http://www.scopus.com/inward/record.url?scp=85065462651&partnerID=8YFLogxK

U2 - 10.1371/journal.pbio.3000233

DO - 10.1371/journal.pbio.3000233

M3 - Article

VL - 17

JO - PLoS Biology

JF - PLoS Biology

SN - 1544-9173

IS - 4

M1 - e3000233

ER -