Precision-dependent modulation of social attention DOI Creative Commons

Gao Wen-hui,

Changbo Zhu, Bailu Si

и другие.

NeuroImage, Год журнала: 2025, Номер unknown, С. 121166 - 121166

Опубликована: Март 1, 2025

Social attention, guided by cues like gaze direction, is crucial for effective social interactions. However, how dynamic environmental context modulates this process remains unclear. Integrating a hierarchical Bayesian model with fMRI, study investigated individuals adjusted attention based on the predictions about cue validity (CV). Thirty-three participants performed modified Posner location-cueing task varying CV. Behaviorally, individuals' allocation of was finely tuned to precision (inverse variance) CV predictions, updated precision-weighted prediction errors (PEs) occurrence target locations. Neuroimaging results revealed that interaction between and influenced activity in regions involved spatial and/or perception. Precision-weighted PEs locations specifically modulated temporoparietal junction (TPJ), superior temporal sulcus (STS), primary visual cortex (V1), underscoring their roles refining attentional predictions. Dynamic causal modeling (DCM) further demonstrated enhanced absolute strengthened connectivity from V1 STS TPJ, emphasizing conveying residual error signals upwards high-level critical areas. These findings emphasized pivotal role modulation, enhancing our understanding context-dependent attention.

Язык: Английский

Reward signals in the cerebellum: Origins, targets, and functional implications DOI Creative Commons
Dimitar Kostadinov, Michael Häusser

Neuron, Год журнала: 2022, Номер 110(8), С. 1290 - 1303

Опубликована: Март 23, 2022

Язык: Английский

Процитировано

75
Schemas, reinforcement learning and the medial prefrontal cortex DOI
Oded Bein, Yael Niv

Nature reviews. Neuroscience, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Язык: Английский

Процитировано

4
Reward expectation extinction restructures and degrades CA1 spatial maps through loss of a dopaminergic reward proximity signal DOI Creative Commons
Seetha Krishnan, Chad M Heer,

Chery Cherian

и другие.

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Ноя. 4, 2022

Abstract Hippocampal place cells support reward-related spatial memories by forming a cognitive map that over-represents reward locations. The strength of these is modulated the extent expectation during encoding. However, circuit mechanisms underlying this modulation are unclear. Here we find when extinguished in mice, they remain engaged with their environment, yet cell over-representation rewards vanishes, field remapping throughout environment increases, and trial-to-trial reliability decreases. Interestingly, Ventral Tegmental Area (VTA) dopaminergic axons CA1 exhibit ramping reward-proximity signal depends on inhibiting VTA neurons largely replicates effects extinguishing expectation. We conclude changing restructures maps determines modulating VTA-CA1 signal. Thus, internal states high enhance encoding reinforcing hippocampal associated reward.

Язык: Английский

Процитировано

63
What are C-tactile afferents and how do they relate to “affective touch”? DOI Creative Commons
Annett Schirmer, Ilona Croy, Rochelle Ackerley

и другие.

Neuroscience & Biobehavioral Reviews, Год журнала: 2023, Номер 151, С. 105236 - 105236

Опубликована: Май 16, 2023

Since their initial discovery in cats, low-threshold C-fiber mechanoreceptors have become a central interest of scientists studying the affective aspects touch. Their pursuit humans, here termed C-tactile (CT) afferents, has led to establishment research field referred as "affective touch", which is differentiated from "discriminative touch". Presently, we review these developments based on an automated semantic analysis more than 1000 published abstracts well empirical evidence and solicited opinions leading experts field. Our provides historical perspective update CT research, it reflects meaning discusses how current insights challenge established views relation between CTs We conclude that support gentle, touch, but not every touch experience relies or must necessarily be pleasant. Moreover, speculate currently underappreciated signaling will prove relevant for manner unique fibers humans connect both physically emotionally.

Язык: Английский

Процитировано

32
Predictions transform memories: How expected versus unexpected events are integrated or separated in memory DOI Creative Commons
Oded Bein, Camille Gasser, Tarek Amer

и другие.

Neuroscience & Biobehavioral Reviews, Год журнала: 2023, Номер 153, С. 105368 - 105368

Опубликована: Авг. 22, 2023

Язык: Английский

Процитировано

27
Multiple routes to enhanced memory for emotionally relevant events DOI Open Access
Nina Rouhani, Yael Niv, Michael J. Frank

и другие.

Trends in Cognitive Sciences, Год журнала: 2023, Номер 27(9), С. 867 - 882

Опубликована: Июль 19, 2023

Язык: Английский

Процитировано

25
Episodic contributions to predictive learning DOI
Nina Rouhani, Vishnu P. Murty

Neuroscience & Biobehavioral Reviews, Год журнала: 2025, Номер unknown, С. 106122 - 106122

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

1
Abrupt hippocampal remapping signals resolution of memory interference DOI Creative Commons
Wanjia Guo, Serra E. Favila,

Ghootae Kim

и другие.

Nature Communications, Год журнала: 2021, Номер 12(1)

Опубликована: Авг. 10, 2021

Abstract Remapping refers to a decorrelation of hippocampal representations similar spatial environments. While it has been speculated that remapping may contribute the resolution episodic memory interference in humans, direct evidence is surprisingly limited. We tested this idea using high-resolution, pattern-based fMRI analyses. Here we show activity patterns human CA3/dentate gyrus exhibit an abrupt, temporally-specific highly precisely coupled with behavioral expressions successful learning. The magnitude learning-related was predicted by amount pattern overlap during initial stages learning, greater leading stronger decorrelation. Finally, remapped carry relatively more information about learned associations compared competing associations, further validating significance remapping. Collectively, these findings establish critical link between and provide insight into why occurs.

Язык: Английский

Процитировано

47
Single-trial modeling separates multiple overlapping prediction errors during reward processing in human EEG DOI Creative Commons
Colin W. Hoy,

Sheila C. Steiner,

Robert T. Knight

и другие.

Communications Biology, Год журнала: 2021, Номер 4(1)

Опубликована: Июль 23, 2021

Learning signals during reinforcement learning and cognitive control rely on valenced reward prediction errors (RPEs) non-valenced salience (PEs) driven by surprise magnitude. A core debate in focuses whether PEs can be isolated the human electroencephalogram (EEG). We combine behavioral modeling single-trial EEG regression to disentangle sequential an interval timing task dissociating outcome valence, magnitude, probability. Multiple across temporal, spatial, frequency dimensions characterized a spatio-tempo-spectral cascade from early RPE value followed probability indexed late frontal positivity. Separating negative positive outcomes revealed effect is artifact of overlap between two magnitude responses: theta feedback-related negativity losses posterior delta positivity wins. These results reconcile longstanding debates sequence components representing EEG.

Язык: Английский

Процитировано

43
A taxonomy of surprise definitions DOI Creative Commons
Alireza Modirshanechi, Johanni Brea, Wulfram Gerstner

и другие.

Journal of Mathematical Psychology, Год журнала: 2022, Номер 110, С. 102712 - 102712

Опубликована: Сен. 1, 2022

Surprising events trigger measurable brain activity and influence human behavior by affecting learning, memory, decision-making. Currently there is, however, no consensus on the definition of surprise. Here we identify 18 mathematical definitions surprise in a unifying framework. We first propose technical classification these into three groups based their dependence an agent's belief, show how they relate to each other, prove under what conditions are indistinguishable. Going beyond this analysis, taxonomy classify them four conceptual categories quantity measure: (i) 'prediction surprise' measures mismatch between prediction observation; (ii) 'change-point detection probability change environment; (iii) 'confidence-corrected explicitly accounts for effect confidence; (iv) 'information gain belief-update upon new observation. The poses foundation principled studies functional roles physiological signatures brain.

Язык: Английский

Процитировано

38