User profiles for Y. Niv

Yael Niv

- Verified email at princeton.edu - Cited by 21176

Yaron Niv

- Verified email at ariel.ac.il - Cited by 15616

[PDF][PDF] ESPEN guidelines on artificial enteral nutrition--percutaneous endoscopic gastrostomy (PEG)

…, EM Mathus-Vliegen, M Muscaritoli, Y Niv… - Clin Nutr, 2005 - sifoweb.it
Since the first published report of a percutaneous endoscopic gastrostomy (PEG) in 1980 by
Gauderer and Ponsky, 1 the procedure has been modified and improved several times. It …

Learning task-state representations

Y Niv - Nature neuroscience, 2019 - nature.com
Arguably, the most difficult part of learning is deciding what to learn about. Should I associate
the positive outcome of safely completing a street-crossing with the situation ‘the car …

Reinforcement learning: the good, the bad and the ugly

P Dayan, Y Niv - Current opinion in neurobiology, 2008 - Elsevier
Niv Y, Montague PR: Theoretical and empirical studies of learning. In Neuroeconomics:
Decision Making and The Brain. Edited by Glimcher PW, Camerer C, Fehr E, Poldrack R. …

Reinforcement learning in the brain

Y Niv - Journal of Mathematical Psychology, 2009 - Elsevier
A wealth of research focuses on the decision-making processes that animals and humans
employ when selecting actions in the face of reward and punishment. Initially such work …

Uncertainty-based competition between prefrontal and dorsolateral striatal systems for behavioral control

ND Daw, Y Niv, P Dayan - Nature neuroscience, 2005 - nature.com
A broad range of neural and behavioral data suggests that the brain contains multiple systems
for behavioral choice, including one associated with prefrontal cortex and another with …

[HTML][HTML] Orbitofrontal cortex as a cognitive map of task space

RC Wilson, YK Takahashi, G Schoenbaum, Y Niv - Neuron, 2014 - cell.com
Orbitofrontal cortex (OFC) has long been known to play an important role in decision making.
However, the exact nature of that role has remained elusive. Here, we propose a unifying …

Tonic dopamine: opportunity costs and the control of response vigor

Y Niv, ND Daw, D Joel, P Dayan - Psychopharmacology, 2007 - Springer
… pellet is itself time-consuming; thus, whenever a nose-poking action is chosen and a pellet
is available in the magazine, a variable “eating time” with a mean of several seconds (Niv et al…

Hierarchically organized behavior and its neural foundations: A reinforcement learning perspective

MM Botvinick, Y Niv, AG Barto - cognition, 2009 - Elsevier
Research on human and animal behavior has long emphasized its hierarchical structure—the
divisibility of ongoing behavior into discrete tasks, which are comprised of subtask …

Prospective multicenter performance evaluation of the second-generation colon capsule compared with colonoscopy

R Eliakim, K Yassin, Y Niv, Y Metzger, J Lachter… - …, 2009 - thieme-connect.com
Results: 104 patients (mean age 49.8 years) were enrolled; data from 98 were analyzed.
Patient rate for polyps of any size was 44%, 53% of these patients having adenomas. No …

From fear to safety and back: reversal of fear in the human brain

D Schiller, I Levy, Y Niv, JE LeDoux… - Journal of …, 2008 - Soc Neuroscience
Fear learning is a rapid and persistent process that promotes defense against threats and
reduces the need to relearn about danger. However, it is also important to flexibly readjust fear …