Evaluation of an operant successive negative contrast task as a method to study affective state in rodents

2012 ◽  
Vol 234 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Emma N. Mitchell ◽  
Hugh M. Marston ◽  
David J. Nutt ◽  
Emma S.J. Robinson
2019 ◽  
Vol 23 (1) ◽  
pp. 121-130 ◽  
Author(s):  
L. Luo ◽  
I. Reimert ◽  
E. A. M. Graat ◽  
S. Smeets ◽  
B. Kemp ◽  
...  

Abstract Animals in a negative affective state seem to be more sensitive to reward loss, i.e. an unexpected decrease in reward size. The aim of this study was to investigate whether early-life and current enriched vs. barren housing conditions affect the sensitivity to reward loss in pigs using a successive negative contrast test. Pigs (n = 64 from 32 pens) were housed in barren or enriched conditions from birth onwards, and at 7 weeks of age experienced either a switch in housing conditions (from barren to enriched or vice versa) or not. Allotting pigs to the different treatments was balanced for coping style (proactive vs. reactive). One pig per pen was trained to run for a large reward and one for a small reward. Reward loss was introduced for pigs receiving the large reward after 11 days (reward downshift), i.e. from then onwards, they received the small reward. Pigs housed in barren conditions throughout life generally had a lower probability and higher latency to get the reward than other pigs. Proactive pigs ran overall slower than reactive pigs. After the reward downshift, all pigs ran slower. Nevertheless, reward downshift increased the latency and reduced the probability to get to the reward, but only in pigs exposed to barren conditions in early life, which thus were more sensitive to reward loss than pigs from enriched early life housing. In conclusion, barren housed pigs seemed overall less motivated for the reward, and early life housing conditions had long-term effects on the sensitivity to reward loss.


BIO-PROTOCOL ◽  
2019 ◽  
Vol 9 (7) ◽  
Author(s):  
Ana Jiménez-García ◽  
Leandro Ruiz-Leyva ◽  
Ana Vázquez-Ágredos ◽  
Carmen Torres ◽  
Mauricio Papini ◽  
...  

2019 ◽  
Vol 23 (1) ◽  
pp. 54-61 ◽  
Author(s):  
Sarah L. H. Ellis ◽  
Stefanie Riemer ◽  
Hannah Thompson ◽  
Oliver H. P. Burman

2020 ◽  
Vol 69 ◽  
pp. 101615
Author(s):  
Juan Carlos Ruiz-Salas ◽  
L. Gonzalo de la Casa ◽  
Mauricio R. Papini

2015 ◽  
Vol 52 ◽  
pp. 11-21 ◽  
Author(s):  
Lucas Cuenya ◽  
Iván Annicchiarico ◽  
Matías Serafini ◽  
Amanda C. Glueck ◽  
Alba E. Mustaca ◽  
...  

2012 ◽  
Vol 105 (5) ◽  
pp. 1112-1116 ◽  
Author(s):  
L. Cuenya ◽  
M. Sabariego ◽  
R. Donaire ◽  
A. Fernández-Teruel ◽  
A. Tobeña ◽  
...  

2015 ◽  
Vol 232 (15) ◽  
pp. 2697-2709 ◽  
Author(s):  
C. E. Phelps ◽  
E. N. Mitchell ◽  
D. J. Nutt ◽  
H. M. Marston ◽  
E. S. J. Robinson

2013 ◽  
Vol 42 (1) ◽  
pp. 58-68 ◽  
Author(s):  
Nadia Justel ◽  
Ricardo Pautassi ◽  
Alba Mustaca

2004 ◽  
Vol 35 (4) ◽  
pp. 303-321 ◽  
Author(s):  
Santiago Pellegrini ◽  
Rubén N. Muzio ◽  
Alba E. Mustaca ◽  
Mauricio R. Papini

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