User profiles for Gouki Okazawa

Gouki Okazawa

Institute of Neuroscience, Shanghai
Verified email at ion.ac.cn
Cited by 612

[PDF][PDF] Representational geometry of perceptual decisions in the monkey parietal cortex

G Okazawa, CE Hatch, A Mancoo, CK Machens… - Cell, 2021 - cell.com
Lateral intraparietal (LIP) neurons represent formation of perceptual decisions involving eye
movements. In circuit models for these decisions, neural ensembles that encode actions …

Neural mechanisms that make perceptual decisions flexible

G Okazawa, R Kiani - Annual review of physiology, 2023 - annualreviews.org
Neural mechanisms of perceptual decision making have been extensively studied in experimental
settings that mimic stable environments with repeating stimuli, fixed rules, and payoffs…

Image statistics underlying natural texture selectivity of neurons in macaque V4

G Okazawa, S Tajima… - Proceedings of the …, 2015 - National Acad Sciences
Our daily visual experiences are inevitably linked to recognizing the rich variety of textures.
However, how the brain encodes and differentiates a plethora of natural textures remains …

[PDF][PDF] Designing and interpreting psychophysical investigations of cognition

ML Waskom, G Okazawa, R Kiani - Neuron, 2019 - cell.com
Scientific experimentation depends on the artificial control of natural phenomena. The
inaccessibility of cognitive processes to direct manipulation can make such control difficult to …

Gradual development of visual texture-selective properties between macaque areas V2 and V4

G Okazawa, S Tajima, H Komatsu - Cerebral Cortex, 2017 - academic.oup.com
Complex shape and texture representations are known to be constructed from V1 along the
ventral visual pathway through areas V2 and V4, but the underlying mechanism remains …

Representation of the material properties of objects in the visual cortex of nonhuman primates

N Goda, A Tachibana, G Okazawa… - Journal of …, 2014 - Soc Neuroscience
Information about the material from which objects are made provide rich and useful clues
that enable us to categorize and identify those objects, know their state (eg, ripeness of fruits), …

[HTML][HTML] Psychophysical reverse correlation reflects both sensory and decision-making processes

G Okazawa, L Sha, BA Purcell, R Kiani - Nature communications, 2018 - nature.com
Goal-directed behavior depends on both sensory mechanisms that gather information from
the outside world and decision-making mechanisms that select appropriate behavior based …

Selective responses to specular surfaces in the macaque visual cortex revealed by fMRI

G Okazawa, N Goda, H Komatsu - Neuroimage, 2012 - Elsevier
The surface properties of objects, such as gloss, transparency and texture, provide important
information about the material characteristics of objects in our visual environment. However…

Effects of luminance contrast on the color selectivity of neurons in the macaque area v4 and inferior temporal cortex

…, M Yasuda, T Banno, G Okazawa… - Journal of …, 2014 - Soc Neuroscience
Appearance of a color stimulus is significantly affected by the contrast between its luminance
and the luminance of the background. In the present study, we used stimuli evenly …

[HTML][HTML] Categorical properties of the color term “GOLD”

G Okazawa, K Koida, H Komatsu - Journal of Vision, 2011 - iovs.arvojournals.org
Humans are able to categorize an infinite variety of surface colors into a small number of color
terms. Previous studies have shown that 11 basic color terms are commonly used in fully …