Rule-based generalization and peak shift in the presence of simple relational rules. by Jessica C Lee, Evan J Livesey

“…After discrimination learning between two stimuli that lie on a continuum, animals typically exhibit generalization on the basis of similarity to the physical features of the stimuli, often producing a peak-shifted gradient. …”
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Excitotoxic lesions of the amygdala fail to produce impairment in visual learning for auditory secondary reinforcement but interfere with reinforcer devaluation effects in rhesus m... by Málková, L, Gaffan, D, Murray, E

“…Aspiration lesions of the amygdala were found previously to produce a severe impairment in visual discrimination learning for auditory secondary reinforcement in rhesus monkeys (Gaffan and Harrison, 1987). …”

The left hemisphere and the selection of learned actions. by Rushworth, M, Nixon, P, Wade, D, Renowden, S, Passingham, R

“…This was confirmed by showing that LH subjects were unimpaired on a more demanding task-object discrimination learning-which imposed a greater memory load but had no response selection element. …”

Impaired fear inhibition learning predicts the persistence of symptoms of posttraumatic stress disorder (PTSD). by Sijbrandij, M, Engelhard, I, Lommen, M, Leer, A, Baas, J

“…Responses to AX+ or BX- trials, or discrimination learning (AX+ minus BX-) did not predict PTSD symptoms. …”

Perirhinal cortex ablation impairs visual object identification. by Buckley, M, Gaffan, D

“…Impairments in both recognition memory and concurrent discrimination learning have been shown to follow perirhinal cortex ablation in the monkey. …”

Bottom-up and top-down influences at untrained conditions determine perceptual learning specificity and transfer by Ying-Zi Xiong, Jun-Yun Zhang, Cong Yu

“…We found that either bottom-up or top-down influences enabled significant transfer of orientation and Vernier discrimination learning. These results suggest that learning specificity may result from under-activations of untrained visual neurons due to insufficient bottom-up stimulation and/or top-down attention during training. …”
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Differential GO and NO GO Learning Within an Auditory Discrimination Task by Kusuma Anand, Paul M. Nealen

“…In its typical form, GO-NOGO discrimination learning is assessed by the magnitude of, and rate of acquisition of, discrimination capability, which is nominally low at the start of training, and through experience, is improved as a function of the reward schedule employed. …”
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Pigeon nidopallium caudolaterale, entopallium, and mesopallium ventrolaterale neural responses during categorisation of Monet and Picasso paintings by Catrona Anderson, Renelyn S. Parra, Hayley Chapman, Alina Steinemer, Blake Porter, Michael Colombo

“…The current study adds some preliminary evidence to previous literature which emphasises visual lateralisation during discrimination learning in pigeons.…”
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Personality and social environment predict cognitive performance in common marmosets (Callithrix jacchus) by Vedrana Šlipogor, Christina Graf, Jorg J. M. Massen, Thomas Bugnyar

“…We tested 22 individuals in series of personality and learning-focused cognitive tests, including simple motor tasks and discrimination learning tasks. We found that these marmosets showed significant inter-individual consistency in learning across the different tasks, and that females learned faster than males. …”
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Visual discrimination and amodal completion in zebrafish. by Valeria Anna Sovrano, Sofia Vicidomini, Davide Potrich, Maria Elena Miletto Petrazzini, Greta Baratti, Orsola Rosa-Salva

“…In this work, we validated for zebrafish two versions of a visual discrimination learning task, which is based on the motivation to reach food and companions. …”
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Original article Temperamental variation in learned irrelevance in humans by Aleksandra Gruszka, Adrian M. Owen

“…Participants and procedures Sixty-eight healthy volunteers performed a visual discrimination learning task modelled after Wisconsin Card Sorting Test. …”
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Dopamine release at the time of a predicted aversive outcome causally controls the trajectory and expression of conditioned behavior by Munir Gunes Kutlu, Jennifer Tat, Brooke A. Christensen, Jennifer E. Zachry, Erin S. Calipari

“…This dopamine response is largest when the omission is unexpected and decreases over learning, and artificially increasing this signal disrupts discrimination learning. Conversely, optogenetic inhibition of dopamine responses to the footshock itself impairs learning. …”
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GoFish: a low-cost, open-source platform for closed-loop behavioural experiments on fish by Ajuwon, V, Cruz, BF, Carriço, P, Kacelnik, A, Monteiro, T

“…As an illustration and test of its use, we present the results of two experiments on discrimination learning, reversal, and choice in goldfish (<i>Carassius auratus</i>). …”

Visual discrimination impairments following lesions of the superior temporal sulcus are not specific for facial stimuli. by Eacott, M, Heywood, C, Gross, C, Cowey, A

“…We conclude that this impairment may be a general impairment in two-choice visual discrimination learning, rather than a selective impairment in discrimination of eye gaze. …”

The effects of fornix transection and combined fornix transection, mammillary body lesions and hippocampal ablations on object-pair association memory in the rhesus monkey. by Saunders, R, Weiskrantz, L

“…Eight animals (4 unoperated monkeys and 4 monkeys with lesions to components of the 'hippocampal-mammillary' circuit) were trained initially on a conditional object-pair association task that was similar to simple discrimination learning, but which involved presentation of object-pairs instead of single objects. …”

A novel whole-cell mechanism for long-term memory enhancement. by Iris Reuveni, Drorit Saar, Edi Barkai

“…Olfactory-discrimination learning was shown to induce a profound long-lasting enhancement in the strength of excitatory and inhibitory synapses of pyramidal neurons in the piriform cortex. …”
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Chemotherapy-induced cognitive impairment is associated with decreases in cell proliferation and histone modifications by Briones Teresita L, Woods Julie

“…Two weeks after the last injection, rats were tested in the water maze for spatial learning and memory ability as well as discrimination learning. Bromodeoxyuridine (BrdU) injection was given at 100 mg/Kg intraperitoneally 4 hours prior to euthanasia to determine hippocampal cell proliferation while histone acetylation and histone deacetylase activity was measured to determine CMF effects on chromatin remodeling.…”
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Eye structure, activity rhythms and visually-driven behavior are tuned to visual niche in ants by Ayse eYilmaz, Ayse eYilmaz, Volkan eAksoy, Yilmaz eCamlitepe, Martin eGiurfa, Martin eGiurfa

“…The discrimination and learning of visual stimuli differs significantly between these species in controlled dual-choice experiments: discrimination learning of small-field visual stimuli is achieved by F. cunicularia but not by C. aethiops, while both species master the discrimination of large-field visual stimuli. …”
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Learning and visual discrimination in newly hatched zebrafish by Maria Santacà, Marco Dadda, Luisa Dalla Valle, Camilla Fontana, Gabriela Gjinaj, Angelo Bisazza

“…We exploited this ability to study hatchlings’ discrimination learning capacities. Larvae rapidly and accurately learned color and shape discriminations. …”
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Generalization gradients for fear and disgust in human associative learning by Jinxia Wang, Xiaoying Sun, Jiachen Lu, HaoRan Dou, Yi Lei

“…During conditioning, differing US expectancy ratings (fear vs. disgust) were found only on CS-, which may demonstrated that fear is associated with inferior discrimination learning. During the generalization test, participants exhibited greater US expectancy ratings to fear-related GS1 (generalized stimulus) and GS2 relative to disgust GS1 and GS2. …”
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