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Roozbeh Kiani

Assistant Professor Of Neural Science

20042019
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Research Output 2004 2019

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Article
2018

Decision Making through Integration of Sensory Evidence at Prolonged Timescales

Waskom, M. L. & Kiani, R., Dec 3 2018, In : Current Biology. 28, 23, p. 3850-3856.e9

Research output: Contribution to journalArticle

decision making
Decision Making
Decision making
Neural Networks (Computer)
Noise

Perceptual insensitivity to higher-order statistical moments of coherent random dot motion

Waskom, M. L., Asfour, J. & Kiani, R., Jan 1 2018, In : Journal of Vision. 18, 6, 9.

Research output: Contribution to journalArticle

Visual Perception
Systems Analysis
Brain
Direction compound

Psychophysical reverse correlation reflects both sensory and decision-making processes

Okazawa, G., Sha, L., Purcell, B. A. & Kiani, R., Dec 1 2018, In : Nature Communications. 9, 1, 3479.

Research output: Contribution to journalArticle

decision making
Decision Making
Decision making
weighting functions
stimuli

Quantitative Principles for Precise Engineering of Sensitivity in Graphene Electrochemical Sensors

Wu, T., Alharbi, A., Kiani, R. & Shahrjerdi, D., Jan 1 2018, (Accepted/In press) In : Advanced Materials. 1805752.

Research output: Contribution to journalArticle

Electrochemical sensors
Graphite
Graphene
Point defects
Electrodes

Sensory and decision-making processes underlying perceptual adaptation

Witthoft, N., Sha, L., Winawer, J. & Kiani, R., Aug 1 2018, In : Journal of Vision. 18, 8, p. 1-20 20 p., 10.

Research output: Contribution to journalArticle

Decision Making
Facial Expression
Psychometrics
Reaction Time
2017

Hybrid CMOS-Graphene Sensor Array for Subsecond Dopamine Detection

Nasri, B., Wu, T., Alharbi, A., You, K. D., Gupta, M., Sebastian, S. P., Kiani, R. & Shahrjerdi, D., Dec 11 2017, (Accepted/In press) In : IEEE Transactions on Biomedical Circuits and Systems.

Research output: Contribution to journalArticle

Sensor arrays
Graphene
Digital to analog conversion
Cyclic voltammetry
Multilayers
2016

A common mechanism underlies changes of mind about decisions and confidence

Van Den Berg, R., Anandalingam, K., Zylberberg, A., Kiani, R., Shadlen, M. N. & Wolpert, D. M., Feb 1 2016, In : eLife. 5, FEBRUARY2016, e12192.

Research output: Contribution to journalArticle

Sampling
Processing

Comment on "single-trial spike trains in parietal cortex reveal discrete steps during decision-making"

Shadlen, M. N., Kiani, R., Newsome, W. T., Gold, J. I., Wolpert, D. M., Zylberberg, A., Ditterich, J., De Lafuente, V., Yang, T. & Roitman, J., Mar 25 2016, In : Science. 351, 6280, 1406-b.

Research output: Contribution to journalArticle

Parietal Lobe
Decision Making
Neurons

Confidence Is the Bridge between Multi-stage Decisions

van den Berg, R., Zylberberg, A., Kiani, R., Shadlen, M. N. & Wolpert, D. M., Dec 5 2016, In : Current Biology. 26, 23, p. 3157-3168 12 p.

Research output: Contribution to journalArticle

Aptitude
Decision Making
Brain
Decision making
decision making

Editorial overview: Neurobiology of cognitive behavior: Complexity of neural computation and cognition

Karpova, A. & Kiani, R., 2016, (Accepted/In press) In : Current Opinion in Neurobiology.

Research output: Contribution to journalArticle

Neurobiology
Cognition
Decision Making
Direction compound

Neural Mechanisms of Post-error Adjustments of Decision Policy in Parietal Cortex

Purcell, B. A. & Kiani, R., Feb 3 2016, In : Neuron. 89, 3, p. 658-671 14 p.

Research output: Contribution to journalArticle

Social Adjustment
Parietal Lobe
Haplorhini
Decision Making
Reaction Time

Temporal dynamics of visual category representation in the macaque inferior temporal cortex

Dehaqani, M. R. A., Vahabie, A. H., Kiani, R., Ahmadabadi, M. N., Araabi, B. N. & Esteky, H., Aug 1 2016, In : Journal of Neurophysiology. 116, 2, p. 587-601 15 p.

Research output: Contribution to journalArticle

Macaca
Visual Cortex
Temporal Lobe
Haplorhini
Population
2015

Natural grouping of neural responses reveals spatially segregated clusters in prearcuate cortex

Kiani, R., Cueva, C. J., Reppas, J. B., Peixoto, D., Ryu, S. I. & Newsome, W. T., Mar 18 2015, In : Neuron. 85, 6, p. 1359-1373 15 p.

Research output: Contribution to journalArticle

Frontal Lobe
Cluster Analysis
Noise
Magnetic Resonance Imaging
Neurons
2014

A neural mechanism of speed-accuracy tradeoff in macaque area LIP

Hanks, T. D., Kiani, R. & Shadlen, M. N., 2014, In : eLife. 3

Research output: Contribution to journalArticle

Macaca
Haplorhini
Decision Making
Neurons
Decision making

Choice certainty is informed by both evidence and decision time

Kiani, R., Corthell, L. & Shadlen, M. N., Dec 17 2014, In : Neuron. 84, 6, p. 1329-1342 14 p.

Research output: Contribution to journalArticle

Proxy
Reaction Time
Learning
Psychological Signal Detection
Direction compound

Cortical reinstatement mediates the relationship between content-specific encoding activity and subsequent recollection decisions

Gordon, A. M., Rissman, J., Kiani, R. & Wagner, A. D., Dec 1 2014, In : Cerebral Cortex. 24, 12, p. 3350-3364 15 p.

Research output: Contribution to journalArticle

Reaction Time
Magnetic Resonance Imaging
Drive

Dimensionality of object representations in monkey inferotemporal cortex

Lehky, S. R., Kiani, R., Esteky, H. & Tanaka, K., Oct 1 2014, In : Neural Computation. 26, 10, p. 2135-2162 28 p.

Research output: Contribution to journalArticle

Haplorhini
Retina
Neurons
Population
Cortex

Dynamics of neural population responses in prefrontal cortex indicate changes of mind on single trials

Kiani, R., Cueva, C. J., Reppas, J. B. & Newsome, W. T., Jul 7 2014, In : Current Biology. 24, 13, p. 1542-1547 6 p.

Research output: Contribution to journalArticle

Population Dynamics
Prefrontal Cortex
decision making
Decision Making
Decision making

Effects of Cortical Microstimulation on Confidence in a Perceptual Decision

Fetsch, C. R., Kiani, R., Newsome, W. T. & Shadlen, M. N., Aug 20 2014, In : Neuron. 83, 4, p. 797-804 8 p.

Research output: Contribution to journalArticle

Motion Perception
Visual Cortex
Haplorhini
Noise
Direction compound

Errata to Effects of cortical microstimulation on confidence in a perceptual decision [Neuron 83, (2014) 797-804]

Fetsch, C. R., Kiani, R., Newsome, W. T. & Shadlen, M. N., Oct 1 2014, In : Neuron. 84, 1, p. 239 1 p.

Research output: Contribution to journalArticle

Neurons

Predicting the accuracy of a decision: A neural mechanism of confidence

Fetsch, C. R., Kiani, R. & Shadlen, M. N., 2014, In : Cold Spring Harbor Symposia on Quantitative Biology. 79, p. 185-197 13 p.

Research output: Contribution to journalArticle

Reaction Time
Decision Making
Decision making
Neurophysiology
Feedback
2013

Decision making as a window on cognition

Shadlen, M. N. & Kiani, R., Oct 30 2013, In : Neuron. 80, 3, p. 791-806 16 p.

Research output: Contribution to journalArticle

Cognition
Primates
Decision Making
Direction compound

Integration of direction cues is invariant to the temporal gap between them

Kiani, R., Churchland, A. K. & Shadlen, M. N., 2013, In : Journal of Neuroscience. 33, 42, p. 16483-16489 7 p.

Research output: Contribution to journalArticle

Cues
Freezing
Decision Making
Observation
Direction compound
2011

Anticipatory saccade target processing and the presaccadic transfer of visual features

Zirnsak, M., Gerhards, R. G. K., Kiani, R., Lappe, M. & Hamker, F. H., Dec 7 2011, In : Journal of Neuroscience. 31, 49, p. 17887-17891 5 p.

Research output: Contribution to journalArticle

Saccades
Motion Pictures
Eye Movements
Neurons

Elapsed decision time affects the weighting of prior probability in a perceptual decision task

Hanks, T. D., Mazurek, M. E., Kiani, R., Hopp, E. & Shadlen, M. N., Apr 27 2011, In : Journal of Neuroscience. 31, 17, p. 6339-6352 14 p.

Research output: Contribution to journalArticle

Brain
Macaca mulatta
Direction compound

Statistics of visual responses in primate inferotemporal cortex to object stimuli

Lehky, S. R., Kiani, R., Esteky, H. & Tanaka, K., Sep 2011, In : Journal of Neurophysiology. 106, 3, p. 1097-1117 21 p.

Research output: Contribution to journalArticle

Primates
Neurons
Tail
Population
Structural Models

Variance as a Signature of Neural Computations during Decision Making

Churchland, A. K., Kiani, R., Chaudhuri, R., Wang, X-J., Pouget, A. & Shadlen, M. N., Feb 24 2011, In : Neuron. 69, 4, p. 818-831 14 p.

Research output: Contribution to journalArticle

Stochastic Processes
Decision Making
Neurons
2009

Changes of mind in decision-making

Resulaj, A., Kiani, R., Wolpert, D. M. & Shadlen, M. N., Sep 10 2009, In : Nature. 461, 7261, p. 263-266 4 p.

Research output: Contribution to journalArticle

Cost-Benefit Analysis
Decision Making
Hand
Brain

Representation of confidence associated with a decision by neurons in the parietal cortex

Kiani, R. & Shadlen, M. N., May 8 2009, In : Science. 324, 5928, p. 759-764 6 p.

Research output: Contribution to journalArticle

Parietal Lobe
Neurons
Haplorhini
Macaca mulatta
Reward
2008

Bounded integration in parietal cortex underlies decisions even when viewing duration is dictated by the environment

Kiani, R., Hanks, T. D. & Shadlen, M. N., Mar 19 2008, In : Journal of Neuroscience. 28, 12, p. 3017-3029 13 p.

Research output: Contribution to journalArticle

Parietal Lobe
Visual Cortex
Haplorhini
Neurons
Discrimination (Psychology)

Corrigendum: Decision-making with multiple alternatives (Nature Neuroscience (2008) 11, (693-702))

Churchland, A. K., Kiani, R. & Shadlen, M. N., Jul 2008, In : Nature Neuroscience. 11, 7, p. 851 1 p.

Research output: Contribution to journalArticle

Neurosciences
Decision Making
corrigendum

Decision-making with multiple alternatives

Churchland, A. K., Kiani, R. & Shadlen, M. N., Jun 2008, In : Nature Neuroscience. 11, 6, p. 693-702 10 p.

Research output: Contribution to journalArticle

Decision Making
Neurobiology
Haplorhini
Discrimination (Psychology)
Handling (Psychology)

Matching Categorical Object Representations in Inferior Temporal Cortex of Man and Monkey

Kriegeskorte, N., Mur, M., Ruff, D. A., Kiani, R., Bodurka, J., Esteky, H., Tanaka, K. & Bandettini, P. A., Dec 26 2008, In : Neuron. 60, 6, p. 1126-1141 16 p.

Research output: Contribution to journalArticle

Temporal Lobe
Haplorhini
Primates

Probabilistic Population Codes for Bayesian Decision Making

Beck, J. M., Ma, W. J., Kiani, R., Hanks, T., Churchland, A. K., Roitman, J., Shadlen, M. N., Latham, P. E. & Pouget, A., Dec 26 2008, In : Neuron. 60, 6, p. 1142-1152 11 p.

Research output: Contribution to journalArticle

Decision Making
Poisson Distribution
Population
Neurons
2007

Neurology: An awakening

Shadlen, M. N. & Kiani, R., Aug 2 2007, In : Nature. 448, 7153, p. 539-540 2 p.

Research output: Contribution to journalArticle

Neurology
Consciousness
Paralysis
Stroke

Object category structure in response patterns of neuronal population in monkey inferior temporal cortex

Kiani, R., Esteky, H., Mirpour, K. & Tanaka, K., Jun 2007, In : Journal of Neurophysiology. 97, 6, p. 4296-4309 14 p.

Research output: Contribution to journalArticle

Temporal Lobe
Haplorhini
Population
Primates
Aptitude
2006

Erratum: Microstimulation of inferotemporal cortex influences face categorization (Nature (2006) 442 (692-695))

Afraz, S. R., Kiani, R. & Esteky, H., Oct 5 2006, In : Nature. 443, 7111, p. 598 1 p.

Research output: Contribution to journalArticle

Microstimulation of inferotemporal cortex influences face categorization

Afraz, S. R., Kiani, R. & Esteky, H., Aug 10 2006, In : Nature. 442, 7103, p. 692-695 4 p.

Research output: Contribution to journalArticle

Neurons
Temporal Lobe
Haplorhini
Macaca
Primates

When is enough enough?

Kiani, R., Hanks, T. D. & Shadlen, M. N., Jul 2006, In : Nature Neuroscience. 9, 7, p. 861-863 3 p.

Research output: Contribution to journalArticle

Parietal Lobe
Basal Ganglia
Decision Making
2005

Differences in onset latency of macaque inferotemporal neural responses to primate and non-primate faces

Kiani, R., Esteky, H. & Tanaka, K., Aug 2005, In : Journal of Neurophysiology. 94, 2, p. 1587-1596 10 p.

Research output: Contribution to journalArticle

Macaca
Primates
Reaction Time
Temporal Lobe
Haplorhini

Effects of GABAA receptor inhibition on response properties of barrel cortical neurons in C-Fiber-depleted rats

Farazifard, R., Kiani, R. & Esteky, H., Jul 19 2005, In : Brain Research. 1050, 1-2, p. 27-32 6 p.

Research output: Contribution to journalArticle

Vibrissae
Unmyelinated Nerve Fibers
GABA-A Receptors
Picrotoxin
Neurons

Effects of neonatal C-fiber depletion on the integration of paired-whisker inputs in rat barrel cortex

Farazifard, R., Kiani, R., Noorbakhsh, M. & Esteky, H., Mar 2005, In : Experimental Brain Research. 162, 1, p. 115-121 7 p.

Research output: Contribution to journalArticle

Vibrissae
Unmyelinated Nerve Fibers
Capsaicin
Reaction Time
Rodentia
2004

Effects of neonatal C-fiber depletion on discrimination of principal and adjacent whisker stimulation within rat individual cortical barrels

Kiani, R., Farazifard, R., Noorbakhsh, S. M. & Esteky, H., Jul 23 2004, In : Brain Research. 1015, 1-2, p. 129-135 7 p.

Research output: Contribution to journalArticle

Vibrissae
Unmyelinated Nerve Fibers
Capsaicin
ROC Curve
Reaction Time

Motion-induced overestimation of the number of items in a display

Afraz, S. R., Kiani, R., Vaziri-Pashkam, M. & Esteky, H., 2004, In : Perception. 33, 8, p. 915-925 11 p.

Research output: Contribution to journalArticle

Display devices
Color
Experiments