The postnatal development of retinal projections in strepsirrhine galagos (Otolemur garnettii) DOI
Chia‐Chi Liao,

Mariana Gabi,

Hui‐Xin Qi

et al.

The Journal of Comparative Neurology, Journal Year: 2023, Volume and Issue: 532(2)

Published: Dec. 4, 2023

Abstract Here, we describe the postnatal development of retinal projections in galagos. Galagos are special interest as they represent understudied strepsirrhine branch (galagos, pottos, lorises, and lemurs) primate radiations. The both eyes were revealed each galago by injecting red or green cholera toxin subunit B (CTB) tracers into different galagos ranging from day 5 to adult. In dorsal lateral geniculate nucleus, magnocellular, parvocellular, koniocellular layers clearly labeled identified having inputs ipsilateral contralateral eye at all ages. superficial superior colliculus, terminations just ventral those Other later pregeniculate accessory optic system, pretectum. As other primates, a small projection terminated posterior part pulvinar, which is known project temporal visual cortex. This was most apparent on absent mature A similar reduction over maturation has been reported marmosets, leading speculation that early pulvinar responsible for activation middle area, MT.

Language: Английский

Primacy of vision shapes behavioral strategies and neural substrates of spatial navigation in marmoset hippocampus DOI Creative Commons
Diego Buitrago-Piza, Benjamin Corrigan, Roberto A. Gulli

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: May 14, 2024

Abstract The role of the hippocampus in spatial navigation has been primarily studied nocturnal mammals, such as rats, that lack many adaptations for daylight vision. Here we demonstrate during 3D navigation, common marmoset, a new world primate adapted to daylight, predominantly uses rapid head-gaze shifts visual exploration while remaining stationary. During active locomotion marmosets stabilize head, contrast rats use low-velocity head movements scan environment they locomote. Pyramidal neurons marmoset CA3/CA1 regions show mixed selectivity view, direction, and place. Exclusive place is scarce. Inhibitory interneurons are selective angular velocity translation speed. Finally, found theta phase resetting local field potential oscillations triggered by shifts. Our findings indicate their ecological niche modifying exploration/navigation strategies corresponding hippocampal specializations.

Language: Английский

Citations

19
Neuroscience needs evolution DOI Creative Commons
Paul Cisek, Benjamin Y. Hayden

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2021, Volume and Issue: 377(1844)

Published: Dec. 27, 2021

The nervous system is a product of evolution. That is, it was constructed through long series modifications, within the strong constraints heredity, and continuously subjected to intense selection pressures. As result, organization functions brain are shaped by its history. We believe that this fact, underappreciated in contemporary systems neuroscience, offers an invaluable aid for helping us resolve brain's mysteries. Indeed, we think consideration evolutionary history ought take place alongside other intellectual tools used understand brain, such as behavioural experiments, studies anatomical structure functional characterization based on recordings neural activity. In introduction, argue importance evolution highlighting specific examples ways theory can enhance neuroscience. rest theme issue elaborates point, emphasizing conservative nature evolution, important consequences transitions occurred our history, which considerations shed light issues ranging from mechanisms fundamental principles organization. This article part ‘Systems neuroscience lens theory’.

Language: Английский

Citations

60
A genetically defined tecto-thalamic pathway drives a system of superior-colliculus-dependent visual cortices DOI Creative Commons
Joshua M. Brenner,

Riccardo Beltramo,

Charles R. Gerfen

et al.

Neuron, Journal Year: 2023, Volume and Issue: 111(14), P. 2247 - 2257.e7

Published: May 11, 2023

Cortical responses to visual stimuli are believed rely on the geniculo-striate pathway. However, recent work has challenged this notion by showing that in postrhinal cortex (POR), a cortical area, instead depend tecto-thalamic pathway, which conveys information via superior colliculus (SC). Does POR's SC-dependence point wider system of areas? What might extract from world? We discovered multiple mouse areas whose SC, with most lateral strongest SC-dependence. This is driven genetically defined cell type connects SC pulvinar thalamic nucleus. Finally, we show SC-dependent cortices distinguish self-generated externally generated motion. Hence, comprise relies pathway and contributes processing motion as animals move through environment.

Language: Английский

Citations

14
Visual categories and concepts in the avian brain DOI Creative Commons
Roland Pusch, William Clark, Jonas Rose

et al.

Animal Cognition, Journal Year: 2022, Volume and Issue: 26(1), P. 153 - 173

Published: Nov. 10, 2022

Birds are excellent model organisms to study perceptual categorization and concept formation. The renewed focus on avian neuroscience has sparked an explosion of new data in the field. At same time, our understanding sensory particularly visual structures brain shifted fundamentally. These recent discoveries have revealed how is mediated generated a theoretical framework that goes beyond realm birds. We review contribution research-at methodical, behavioral, neurobiological levels. To this end, we first introduce from behavioral perspective common elements categorization. Second, describe functional structural organization system, followed by overview anatomical 'visual cortex'. Third, neurocomputational basis bird's system. Fourth, prefrontal cortex provided. fifth section outlines asymmetries system contribute Finally, present mechanistic view neural principles its putative extension learning.

Language: Английский

Citations

21
Updating functional brain units: Insights far beyond Luria DOI
Jordi Peña‐Casanova, Gonzalo Sánchez‐Benavides, Jorge Sigg-Alonso

et al.

Cortex, Journal Year: 2024, Volume and Issue: 174, P. 19 - 69

Published: Feb. 29, 2024

Language: Английский

Citations

4
Image Contour Detection Based on Visual Pathway Information Transfer Mechanism DOI Creative Commons
Pingping Cai, Zhefei Cai,

Yingle Fan

et al.

Neural Processing Letters, Journal Year: 2024, Volume and Issue: 56(1)

Published: Feb. 6, 2024

Abstract Based on the coding mechanism and interactive features of visual information in pathway, a new method image contour detection is proposed. Firstly, simulating adaptation characteristics retinal ganglion cells, an & sensitization regulation model (ASR) based adaptation-sensitization proposed, which introduces sinusoidal function curve modulated by amplitude, frequency initial phase to dynamically adjusted color channel response enhance edges. Secondly, antagonism characteristic introduced process edge responses, obtained primary responses fed forward dorsal pathway across regions. Then, “angle” V2 region are simulated, double receptive fields (DRFM) constructed compensate for missing detailed contours generation responses. Finally, stream fusion (DSIF) simulates overall flow across-region weighted mechanism, multi-directional fretting simulate fine-tuning ventral detail simultaneously, extracting significant streams. In this paper, natural images BSDS500 NYUD datasets used as experimental data, average optimal F-score proposed 0.72 0.69, respectively. The results show that has better texture suppression extraction than comparison method.

Language: Английский

Citations

3
Why do primates have view cells instead of place cells? DOI
Julio Martinez‐Trujillo

Trends in Cognitive Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Disturbances in Auditory and Visual Perceptual Function in Schizophrenia: Patterns, Causes, and Consequences DOI

Daniel C. Javitt

Current topics in behavioral neurosciences, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Evolution of visual attention DOI
Richard J. Krauzlis

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Neurochemistry and circuit organization of the lateral spiriform nucleus of birds: A uniquely nonmammalian direct pathway component of the basal ganglia DOI
Anton Reiner, Loreta Medina, Antonio Abellán

et al.

The Journal of Comparative Neurology, Journal Year: 2024, Volume and Issue: 532(5)

Published: May 1, 2024

Abstract We used diverse methods to characterize the role of avian lateral spiriform nucleus (SpL) in basal ganglia motor function. Connectivity analysis showed that SpL receives input from globus pallidus (GP), and intrapeduncular (INP) located ventromedial GP, whose neurons express numerous striatal markers. SpL‐projecting GP were large aspiny, while INP medium sized spiny. further inputs subthalamic (STN) substantia nigra pars reticulata (SNr), SNr also INP, STN. Neurochemical ENK, GAD, a variety pallidal neuron markers, receive GABAergic terminals, some which contain DARPP32, consistent with inputs. neurochemical tectum prominently ends on GABAA receptor‐enriched tectobulbar neurons. Behavioral studies lesions impair visuomotor behaviors involving tracking pecking moving targets. Our results suggest modulates brainstem‐projecting manner comparable demonstrated influence internus thalamus mammals. Given published data amphibians reptiles, it seems likely circuit represents major direct pathway‐type by exerts its nonmammalian tetrapods. The present show striatum is divided into three spatially segregated territories differing connectivity, medial striato‐nigral territory, dorsolateral striato‐GP ventrolateral territory.

Language: Английский

Citations

2