Distinctions in the neuronal activity of the rabbit limbic cortex under different training strategies

Gorkin, Alexander; Shevchenko, D. G.

doi:10.1007/bf02359413

Cited by 15 publications

(7 citation statements)

References 8 publications

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“…Such reorganization could develop in a similar way across the animals of "mismatch" group due to the identity of their training history. Patterns of task-related neuronal activations in the cortex were shown to depend on the previous training history [12] [57]. All the mentioned data and our results are in a line with suggestion that during the first stage of learning-"mismatch" stage-previously learned behaviors and previously acquired neuronal ensembles are temporary reorganized; this process was called "accommodative reconsolidation" [58].…”

Section: Discussionsupporting

confidence: 90%

Clustered c-Fos Activation in Rat Hippocampus at the Acquisition Stage of Appetitive Instrumental Learning

Svarnik¹,

Alexandrov²,

Anokhin³

2015

JBBS

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To address the issue of how hippocampal neurons are involved into learning progress, we studied c-Fos expression in rat hippocampal subfields at different stages of appetitive instrumental learning. To model the first stage of learning, we pre-trained animals to approach the lever to obtain the food, and then made this behavior ineffective by not reinforcing it during the last session ("mismatch" group). Another group just acquired lever-pressing behavior at that day ("acquisition" group). Animals of the third group performed this well-trained behavior ("performance" group). The number of Fos-positive neurons in all hippocampal regions of the "mismatch" group animals was higher than in the ones of the home cage control group animals. The number of Fos-positive neurons was increased in CA1 and CA3 areas, but not in the dentate gyrus of both the "acquisition" and "performance" group animals as compared with the control group. We also found segmented c-Fos expression, which was more evident in "acquisition" group animals. Thus, our results suggest that during the first (mismatch) stage of learning hippocampal neurons are activated in an equally distributed manner. The following clustered pattern of activated CA1 neurons during the acquisition stage may reflect specialization of these neurons in respect to the specific lever-pressing behavior.

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Section: Discussionsupporting

confidence: 90%

Clustered c-Fos Activation in Rat Hippocampus at the Acquisition Stage of Appetitive Instrumental Learning

Svarnik¹,

Alexandrov²,

Anokhin³

2015

JBBS

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“…It was shown in our laboratory that there were significant differences of neuronal activations in what seemed to be the same instrumental foodacquisition behavior of animals taught to perform the successive acts of this behavior in various orders (Alexandrov et al, 2000;Gorkin & Shevchenko, 1996). It has also been found in our laboratory that the number of neurons active in what was apparently the same behavior depends on the number of steps required to learn this behavior (Gavrilov et al, 2007).…”

Section: Brain Subserving Of Behavior Reflects the History Of Its Formation; Hence The Activation Characteristics And Sets Of Active Neurmentioning

confidence: 65%

How we fragment the world: the view from inside versus the view from outside

Alexandrov

2008

Social Science Information

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To construct an environment consisting of artificial objects it is helpful to use descriptions of how individuals behave. Implicitly, we do this on the basis that outward behavior reflects the dynamics of the subjective world and is a deployment of brain processes. But this is only partly correct: outwardly `similar' behavioral acts or environmental patterns may correspond to very different neural activities (the view `from inside' the subject). This is because behavior is the result of the history of behavioral development, such that the brain organizations that correspond to an `object' are the ones that were constructed during the subject's past experience in the course of performing related activity. As the construction of brain organizations takes place in the context of a goal-oriented activity, the very nature of the neural organizations involved stays connected to this goal. Empirically, the goal aspect of the object seems more structuring than the pattern of the object itself. This article compares the view from outside and the view from inside for different kinds of specific experimental situations. We show that `externally' similar objects may correspond to very different brain activations. Alternatively, behaviors and environmental events that seem different to an external observer may actually appear similar when viewed from inside the agent's brain. Experimental findings suggest that what is stable in an `object' for a living organism is its subjective status: at the neural level, meaning for the agent is more important than `objective' form. We also show that the nature of objects as seen from the inside depends on the way they were constructed through the organism's experience: behaviors or objects that may look similar from the outside are in this respect also different from the inside perspective. This has implications for the way we should construct objects in the digital world: building by mimicking the appearance of the physical world as seen from the outside may result in poor design.

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“…It was shown that later-formed behaviour is subserved by the activity of a higher quantity of neural networks [ 20 , 21 , 47 ]. Therefore, we assume that when an individual is performing a later formed behaviour, his heart is involved in a more complex non-linear activity in order to achieve an adaptive coordination with the activity of neuronal elements of functional systems.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, the system organization of behaviour represents the history of behavioural development. Multiple systems are involved in behaviour, and each of them was formed at a certain stage of development of the current behaviour [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Sample Entropy of the Heart Rate Reflects Properties of the System Organization of Behaviour

Bakhchina

Arutyunova

Созинов

et al. 2018

Entropy

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Cardiac activity is involved in the processes of organization of goal-directed behaviour. Each behavioural act is aimed at achieving an adaptive outcome and it is subserved by the actualization of functional systems consisting of elements distributed across the brain and the rest of the body. This paper proposes a system-evolutionary view on the activity of the heart and its variability. We have compared the irregularity of the heart rate, as measured by sample entropy (SampEn), in behaviours that are subserved by functional systems formed at different stages of individual development, which implement organism-environment interactions with different degrees of differentiation. The results have shown that SampEn of the heart rate was higher during performing tasks that included later acquired knowledge (foreign language vs. native language; mathematical vocabulary vs. general vocabulary) and decreased in the stress and alcohol conditions, as well as at the beginning of learning. These results are in line with the hypothesis that irregularity of the heart rate reflects the properties of a set of functional systems subserving current behaviour, with higher irregularity corresponding to later acquired and more complex behaviour.

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Distinctions in the neuronal activity of the rabbit limbic cortex under different training strategies

Cited by 15 publications

References 8 publications

Clustered c-Fos Activation in Rat Hippocampus at the Acquisition Stage of Appetitive Instrumental Learning

Clustered c-Fos Activation in Rat Hippocampus at the Acquisition Stage of Appetitive Instrumental Learning

How we fragment the world: the view from inside versus the view from outside

Sample Entropy of the Heart Rate Reflects Properties of the System Organization of Behaviour

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