A neural correlate of visual feature binding in primate lateral prefrontal cortex

Dezfouli, Mohsen Parto; Schwedhelm, Philipp; Wibral, Michael; Treue, Stefan; Daliri, Mohammad Reza; Esghaei, Moein

doi:10.1016/j.neuroimage.2021.117757

Cited by 9 publications

(6 citation statements)

References 71 publications

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“…Our finding of the distinguished behavioral role of frontal lobe's connectivity with distantly located regions is also consistent with previous observations where an impairment of long frontal-temporal pathways severely affected object discrimination performance [35], [36]. Our result is further in-line with the prefrontal cortex' unique setting, transmitting information to/from many distinct brain circuits and a critical role in a wide set of other critical cognitive abilities; attention, memory, decision making and perceptual binding [37]- [40]. Our observation aligns well with the existing evidence that emphasizes the importance of distributed neural networks for visual processing elucidating the distinct roles of frontal and occipital lobes in object recognition.…”

Section: Discussionsupporting

confidence: 91%

Behavioral relevance of category selectivity revealed by human ECoG data

Hashemi,

Ebadi,

Jahromy

et al. 2023

Preprint

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Object recognition is a crucial brain function that involves a complex interplay between various brain regions. However, the behavioral relevance of functional interactions between these regions remains largely unexplored. In this study, we examined the functional interactions between different brain regions during object recognition using intracranial electrocorticography (ECoG) recordings in subjects diagnosed with pharmacologically intractable epilepsy. We computed the phase locking value (PLV) between different brain areas and its category selectivity, and assessed its behavioral relevance by comparing correctly and incorrectly performed trials. Our results revealed that phase locking between brain regions varies across different object categories and that this variability significantly influences the perceptual behavior of subjects. Importantly, we found that the behavioral relevance of these interactions is spatially organized, with long-range (global) connections being more behaviorally relevant for the frontal lobe and local connections being more crucial for the occipital lobe. These findings underscore the unique roles of different brain areas in object recognition and pave the way for more nuanced explorations of the interplay between brain regions in object recognition and other cognitive functions.

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Section: Discussionsupporting

confidence: 91%

Behavioral relevance of category selectivity revealed by human ECoG data

Hashemi,

Ebadi,

Jahromy

et al. 2023

Preprint

Self Cite

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“…Such flexibility is also thought to be associated with adaptive information processing in the LFPC. Indeed, specific frequency changes dependent on task event and task content have been reported in the LFPC of macaque monkeys (Buschman et al, 2012;Sakamoto et al, 2015Sakamoto et al, , 2020aLundqvist et al, 2016;Wimmer et al, 2016;Ma et al, 2018;Wutz et al, 2018;Dezfouli et al, 2021). All of these suggest that different frequency components make different contributions to different aspects of LFPC function.…”

Section: Introductionmentioning

confidence: 95%

Shape and Rule Information Is Reflected in Different Local Field Potential Frequencies and Different Areas of the Primate Lateral Prefrontal Cortex

Sakamoto

Kawaguchi

Mushiake

2022

Front. Behav. Neurosci.

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The lateral prefrontal cortex (LFPC) plays a crucial role in executive function by adaptively storing behavior-relevant information as working memory. Neural mechanisms associated with local field potentials (LFPs) may underlie the adaptive properties of the LFPC. Here, we analyzed how LFPs recorded from the monkey LFPC are modulated by the crucial factors of a shape manipulation task. In this task, the test shape is transformed by manipulating a lever to match the size and orientation of the sample shape. The subject is required to temporarily memorize the rules such as the arm-movement-manipulation relationship and the sample shape to generate the sequential behavior of operations. In the present study, we focused on task variables about shape and rules, and examined among which aspects distinguish the ventral and dorsal sides of the LFPC. We found that the transformed shape in the sample period strongly affected the theta and delta waves in the delay period on the ventral side, while the arm-manipulation assignment influenced the gamma components on the dorsal side. These findings suggest that area- and frequency-selective LFP modulations are involved in dynamically recruiting different behavior-relevant information in the LFPC.

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“…In the present study, we test a new hypothesis concerning the phenomenon of magnitude integration, based on the existence of a magnitude “binding” process integrating the different dimensions of a stimulus in a unified percept. According to this hypothesis, the interaction between different dimensions would occur in the process of generating a unified representation of a given stimulus, binding together its spatial, temporal, and numerical properties in the same way color and shape are bound to a unified object representation ( Duncan, 1984 ; Gray, König, Engel, & Singer, 1989 ; Parto Dezfouli, Schwedhelm, Wibral, Treue, Daliri, & Esghaei, 2021 ; Treisman & Gelade, 1980 ). Magnitude integration might indeed be subject to the same “binding problem” that affects object perception more in general (i.e., the need to correctly identify to which stimulus a given dimension belongs to, in order to bind the dimensions belonging to the same object in a unified percept).…”

Section: Introductionmentioning

confidence: 99%

The nature of magnitude integration: Contextual interference versus active magnitude binding

2022

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Magnitude dimensions such as duration and numerosity have been shown to systematically interact, biasing each other in a congruent fashion: the more numerous a set of items is, the longer it is perceived to last in time. This integration between dimensions plays an important role in defining how we perceive magnitude. So far, however, the nature of magnitude integration remains unclear. Is magnitude integration a contextual interference, occurring whenever different types of information are concurrently available in the visual field, or does it involve an active “binding” of the different dimensions of the same object? To address these possibilities, we measured the integration bias induced by numerosity on perceived duration, in two cases: with duration and numerosity conveyed by distinct stimuli, or by the same stimulus. We show that a congruent integration effect can be observed only when the two magnitudes belong to the same stimulus. Instead, when the two magnitudes are conveyed by distinct stimuli, we observed an opposite effect. These findings demonstrate for the first time that a congruent integration occurs only between the dimensions of the same stimulus, suggesting the involvement of an active mechanism integrating the different dimensions of the same object in a unified percept.

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A neural correlate of visual feature binding in primate lateral prefrontal cortex

Cited by 9 publications

References 71 publications

Behavioral relevance of category selectivity revealed by human ECoG data

Behavioral relevance of category selectivity revealed by human ECoG data

Shape and Rule Information Is Reflected in Different Local Field Potential Frequencies and Different Areas of the Primate Lateral Prefrontal Cortex

The nature of magnitude integration: Contextual interference versus active magnitude binding

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