Translational assessment of reward and motivational deficits in psychiatric disorders

A Der-Avakian, SA Barnes, A Markou… - Translational …, 2016 - Springer
Deficits in reward and motivation are common symptoms characterizing several psychiatric
and neurological disorders. Such deficits may include anhedonia, defined as loss of …

Understanding and manipulating diet choice in grazing animals

JJ Villalba, FD Provenza, F Catanese… - Animal Production …, 2015 - CSIRO Publishing
Conventional models of foraging, such as optimal foraging theory, generally take the
univariate approach to explain the decisions of consumers on the basis of the intrinsic …

Effects of early life and current housing on sensitivity to reward loss in a successive negative contrast test in pigs

L Luo, I Reimert, EAM Graat, S Smeets, B Kemp… - Animal Cognition, 2020 - Springer
Animals in a negative affective state seem to be more sensitive to reward loss, ie an
unexpected decrease in reward size. The aim of this study was to investigate whether early …

Assessing the impact of supplements, food aversions, and silica on medusahead (Taeniatherum caput-medusae (L.) Nevski) use by sheep

T Hamilton, EA Burritt, JJ Villalba - Small Ruminant Research, 2015 - Elsevier
We explored in sheep (1) the impact of supplements on medusahead intake and
preference,(2) whether medusahead is aversive, and (3) if silica inhibits food intake. Groups …

Use of unpalatable forages by ruminants: The influence of experience with the biophysical and social environment

RA Distel, JJ Villalba - Animals, 2018 - mdpi.com
Simple Summary Unpalatable forages, due to either low nutrient content or the presence of
toxic compounds, are widespread and represent a challenge for ruminant nutrition, health …

Behavioural responses to unexpected changes in reward quality

S Riemer, H Thompson, OHP Burman - Scientific reports, 2018 - nature.com
Successive negative contrast (SNC) effects are changes in anticipatory or consummatory
behaviour when animals unexpectedly receive a lower value reward than they have …

A reappraisal of successive negative contrast in two populations of domestic dogs

S Riemer, SLH Ellis, S Ryan, H Thompson… - Animal cognition, 2016 - Springer
When an anticipated food reward is unexpectedly reduced in quality or quantity, many
mammals show a successive negative contrast (SNC) effect, ie a reduction in instrumental or …

Do dogs experience frustration? New contributions on successive negative contrast in domestic dogs (Canis familiaris)

V Dzik, C Cavalli, M Iglesias, M Bentosela - Behavioural processes, 2019 - Elsevier
An unexpected change in reward quantity or quality frequently elicits a sharp decrease of
responses as well as a negative emotional state. This phenomenon is called successive …

Effects of supplementing endophyte-infected tall fescue with sainfoin and polyethylene glycol on the physiology and ingestive behavior of sheep,

F Catanese, RA Distel, JJ Villalba - Journal of Animal Science, 2014 - academic.oup.com
Tannins in sainfoin (Onobrychis viciifolia) may bind to alkaloids in endophyte-infected tall
fescue [E+; Lolium arundinaceum (Schreb.) Darbysh.] and attenuate toxicosis. If so …

Ontogeny of consummatory successive negative contrast in rats

AB Suárez, AE Mustaca, RM Pautassi… - Developmental …, 2014 - Wiley Online Library
Consummatory successive negative contrast (cSNC) occurs when organisms repeatedly
exposed to a high‐magnitude reward are suddenly given a low‐magnitude reward. This …