Sökning: "Conditioned Response"

Visar resultat 6 - 10 av 72 avhandlingar innehållade orden Conditioned Response.

1. 6. An Associative Memory Trace in the Cerebellar Cortex

   Författare :Dan-Anders Jirenhed; Associativ inlärning; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; neuropsykologi; neurofysiologi; neurophysiology; Neurologi; neuropsychology; Classical Conditioning; Cerebellum; Purkinje cell; Physiology; Fysiologi; Neurology;

   Sammanfattning : Classical conditioning of motor responses, e.g., the eyeblink response, depends on the cerebellum. In the theoretical works of David Marr (1969) and James Albus (1971), it was proposed that Purkinje cells in the cerebellar cortex learn to associate the neutral conditioned stimulus with the response. LÄS MER

3. 7. On the mechanisms of action of atypical antipsychotic drugs : an experimental study

   Författare :Peter Hertel; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :antipsychotic drugs; dopamine; serotonin; medial prefrontal cortex; dorsal raphe nucleus; risperidone; clozapine; idazoxan; [alpha]2 adrenoceptors; conditioned avoidance; catalepsy;

   Sammanfattning : A majority of schizophrenic patients respond to classical neuroleptic drugs which are believed to act largely via blockade of dopamine (DA) D2 receptors in limbic structures. However, a significant proportion do not respond to conventional D2 receptor blocking drugs or show a rather incomplete therapeutic effect, particularly on negative and cognitive symptoms. LÄS MER

4. 8. Feedback control of cerebellar learning

   Författare :Anders Rasmussen; Associativ inlärning; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Motor learning; Rescorla-Wagner; Anticipation; In vivo Electrophysiology; Purkinje cells; Nucleo-Olivary inhibition; Inferior Olive; Classical Conditioning; Eyeblink Conditioning; Feedback;

   Sammanfattning : The ability to anticipate future events and to modify erroneous anticipatory actions is crucial for the survival of any organism. Both theoretical and empirical lines of evidence implicate the cerebellum in this ability. It is often suggested that the cerebellum acquires “expectations” or “internal models”. LÄS MER

5. 9. Learning and memory in moths - plasticity in behaviour and neurophysiology

   Författare :Ruey-Jane Fan; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; proboscis extension reflex PER ; LTM; MTM; STM; memory; inter-trial-interval ITI ; inter-stimulus interval ISI ; US; CS; olfaction; Associative learning; classical conditioning; discrimination; the US pathway; Ecology; Ekologi; Animal physiology; Djurfysiologi;

   Sammanfattning : The moth, Spodoptera littoralis, was demonstrated to be a new model system for studying mechanisms underlying odour conditioning. In the experiments a restrained moth was trained to learn an association between a conditioned stimulus (CS) and an unconditioned stimulus (US). LÄS MER

7. 10. On-Line Structure Selection for the Identification of Multivariable Systems

   Författare :A J M van Overbeek; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; On-line structure; Identification; Multivariable systems;

   Sammanfattning : An algorithm is described for the selection of mod el structure for identifying multivariable mode Is of"black box" character. The algorithm receives as "input" a mode I in a given parametrization (= mode I structure). It is then tested whether this parametrization is suitable (well conditioned) for identification purposes. LÄS MER