The neural origin for asymmetric coding of surface color in the primate visual cortex

© 2024. The Author(s)..

The coding privilege of end-spectral hues (red and blue) in the early visual cortex has been reported in primates. However, the origin of such bias remains unclear. Here, we provide a complete picture of the end-spectral bias in visual system by measuring fMRI signals and spiking activities in macaques. The correlated end-spectral biases between the LGN and V1 suggest a subcortical source for asymmetric coding. Along the ventral pathway from V1 to V4, red bias against green peaked in V1 and then declined, whereas blue bias against yellow showed an increasing trend. The feedforward and recurrent modifications of end-spectral bias were further revealed by dynamic causal modeling analysis. Moreover, we found that the strongest end-spectral bias in V1 was in layer 4C[Formula: see text]. Our results suggest that end-spectral bias already exists in the LGN and is transmitted to V1 mainly through the parvocellular pathway, then embellished by cortical processing.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:15

Enthalten in:

Nature communications - 15(2024), 1 vom: 15. Jan., Seite 516

Sprache:

Englisch

Beteiligte Personen:

Wu, Yujie [VerfasserIn]
Zhao, Minghui [VerfasserIn]
Deng, Haoyun [VerfasserIn]
Wang, Tian [VerfasserIn]
Xin, Yumeng [VerfasserIn]
Dai, Weifeng [VerfasserIn]
Huang, Jiancao [VerfasserIn]
Zhou, Tingting [VerfasserIn]
Sun, Xiaowen [VerfasserIn]
Liu, Ning [VerfasserIn]
Xing, Dajun [VerfasserIn]

Links:

Volltext

Themen:

Journal Article

Anmerkungen:

Date Completed 17.01.2024

Date Revised 18.01.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41467-024-44809-y

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367158116