scholarly journals An Operant Intra-/Extra-dimensional Set-shift Task for Mice

10.3791/53503 ◽  
2016 ◽  
Author(s):  
Diego Scheggia ◽  
Francesco Papaleo
Keyword(s):  
Shift Task

Internal Shift Task

2012 ◽  
Author(s):  
Evi De Lissnyder ◽  
Ernst H. W. Koster ◽  
Jonas Everaert ◽  
Rik Schacht ◽  
Dirk Van den Abeele ◽  
...  
Keyword(s):  
Shift Task

scholarly journals Effect of clozapine on ketamine-induced deficits in attentional set shift task in mice

2017 ◽  
Vol 234 (14) ◽  
pp. 2103-2112 ◽  
Author(s):  
M. Szlachta ◽  
P. Pabian ◽  
M. Kuśmider ◽  
J. Solich ◽  
M. Kolasa ◽  
...  
Keyword(s):  
Attentional Set ◽  
Shift Task

Criterion of Learning and Task Difficulty as Determinants of Mediated-Shift Learning Speed

1976 ◽  
Vol 39 (3) ◽  
pp. 875-879
Author(s):  
J. Sweller
Keyword(s):  
University Students ◽  
Task Difficulty ◽  
Verbal Discrimination ◽  
Initial Training ◽  
Easy Task ◽  
Shift Task ◽  
Learning Speed ◽  
Initial Task ◽  
Four Levels ◽  
And Task

University students were given rule-related or non-rule-related shifts after one of four levels of initial training on a nondimensional verbal discrimination using CVC stimuli. Both a difficult and an easy task were used. The results indicated: (1) the effects of the initial tasks on the shift tasks were detected with greater sensitivity using lower criteria on the shift task; (2) where mediated-shift learning occurred, there was a relation between criterion level for the initial task and task difficulty such that lower criteria on the easy task were equivalent to higher criteria on the difficult task.

How to decide whether a neural representation is a cognitive concept?

1995 ◽  
Vol 18 (4) ◽  
pp. 641-642
Author(s):  
Maartje E. J. Raijmakers ◽  
Peter C. M. Molenaar
Keyword(s):  
Neural Network ◽  
Hopfield Network ◽  
Neural Representation ◽  
Input Output ◽  
Feed Forward ◽  
Shift Task ◽  
Form Stimulus

AbstractA distinction should be made between the formation of stimulus-driven associations and cognitive concepts. To test the learning mode of a neural network, we propose a simple and classic input-output test: the discrimination shift task. Feed-forward PDP models appear to form stimulus-driven associations. A Hopfield network should be extended to apply the test.

scholarly journals Dorsal Hippocampus Not Always Necessary in a Radial Arm Maze Delayed Win-shift Task

2018 ◽  
Author(s):  
Dylan Layfield ◽  
Nathan Sidell ◽  
Afnan Abdullahi ◽  
Ehren L. Newman
Keyword(s):  
Working Memory ◽  
Test Performance ◽  
Spatial Working Memory ◽  
Dorsal Hippocampus ◽  
Radial Arm Maze ◽  
Spatial Coding ◽  
Shift Task ◽  
Neural Underpinnings ◽  
Retention Intervals ◽  
Phosphate Buffered Saline

AbstractSpatial working memory is important for foraging and navigating the environment. However, its neural underpinnings remain poorly understood. The hippocampus, known for its spatial coding and involvement in spatial memory, is widely understood to be necessary for spatial working memory when retention intervals increase beyond seconds into minutes. Here, we describe new evidence that the dorsal hippocampus is not always necessary for spatial working memory for retention intervals of 8 minutes. Rats were trained to perform a delayed spatial win shift radial arm maze task (DSWS) with an 8-minute delay between study and test phases. We then tested whether bilateral inactivation of the dorsal hippocampus between the study and test phases impaired behavioral performance at test. Inactivation was achieved through a bilateral infusion of lidocaine. Performance following lidocaine was compared to control trials, in which, sterile phosphate buffered saline (PBS) was infused. Test performance did not differ between the lidocaine and PBS conditions, remaining high in each. To explore the possibility that this insensitivity to inactivation was a result of overtraining, a second cohort of animals received substantially less training prior to the infusions. In this second cohort, lidocaine infusions did significantly impair task performance. These data indicate that successful performance of a spatial win-shift task on the 8-arm maze need not always be hippocampally dependent.

Distinct displacement of the superficial and deep fascial layers of the iliotibial band during a weight shift task in runners: An exploratory study

2021 ◽  
Author(s):  
Manuela Besomi ◽  
Sauro E. Salomoni ◽  
Carlos Cruz‐Montecinos ◽  
Carla Stecco ◽  
Bill Vicenzino ◽  
...  
Keyword(s):  
Exploratory Study ◽  
Iliotibial Band ◽  
Shift Task ◽  
Weight Shift
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