Cognition without cortex

O Güntürkün, T Bugnyar - Trends in cognitive sciences, 2016 - cell.com
Assumptions on the neural basis of cognition usually focus on cortical mechanisms. Birds
have no cortex, but recent studies in parrots and corvids show that their cognitive skills are …

[HTML][HTML] Avian pallial circuits and cognition: a comparison to mammals

O Güntürkün, K von Eugen, J Packheiser… - Current Opinion in …, 2021 - Elsevier
Cognitive functions are similar in birds and mammals. So, are therefore pallial cellular
circuits and neuronal computations also alike? In search of answers, we move in from bird's …

High associative neuron numbers could drive cognitive performance in corvid species

F Ströckens, K Neves, S Kirchem… - Journal of …, 2022 - Wiley Online Library
Corvids possess cognitive skills, matching those of nonhuman primates. However, how
these species with their small brains achieve such feats remains elusive. Recent studies …

Apes, feathered apes, and pigeons: differences and similarities

O Güntürkün, F Ströckens, D Scarf… - Current Opinion in …, 2017 - Elsevier
Highlights•Birds have small brains but much more neurons per pallial mass than
primates.•Corvids have 6 times less pallial neurons than chimps but 6-17 times more than …

Neural code of motor planning and execution during goal-directed movements in crows

P Rinnert, A Nieder - Journal of Neuroscience, 2021 - Soc Neuroscience
The planning and execution of head-beak movements are vital components of bird behavior.
They require integration of sensory input and internal processes with goal-directed motor …

[HTML][HTML] Trial-by-trial dynamics of reward prediction error-associated signals during extinction learning and renewal

J Packheiser, JR Donoso, S Cheng, O Güntürkün… - Progress in …, 2021 - Elsevier
Reward prediction errors (RPEs) have been suggested to drive associative learning
processes, but their precise temporal dynamics at the single-neuron level remain elusive …

[HTML][HTML] The neuroscience of perceptual categorization in pigeons: A mechanistic hypothesis

O Güntürkün, C Koenen, F Iovine, A Garland… - Learning & …, 2018 - Springer
We are surrounded by an endless variation of objects. The ability to categorize these objects
represents a core cognitive competence of humans and possibly all vertebrates. Research …

[HTML][HTML] A histological and diceCT-derived 3D reconstruction of the avian visual thalamofugal pathway

PJ Straight, PM Gignac, WJ Kuenzel - Scientific Reports, 2024 - nature.com
Amniotes feature two principal visual processing systems: the tectofugal and thalamofugal
pathways. In most mammals, the thalamofugal pathway predominates, routing retinal …

Testing analogical rule transfer in pigeons (Columba livia)

MAJ Qadri, FG Ashby, JD Smith, RG Cook - Cognition, 2019 - Elsevier
Categorization is an essential cognitive process useful for transferring knowledge from
previous experience to novel situations. The mechanisms by which trained categorization …

[HTML][HTML] Blocking NMDA-receptors in the pigeon's “prefrontal” caudal nidopallium impairs appetitive extinction learning in a sign-tracking paradigm

D Lengersdorf, D Marks, M Uengoer… - Frontiers in Behavioral …, 2015 - frontiersin.org
Extinction learning provides the ability to flexibly adapt to new contingencies by learning to
inhibit previously acquired associations in a context-dependent manner. The neural …