Sökning: "associative learning"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden associative learning.

  1. 1. Spike-Based Bayesian-Hebbian Learning in Cortical and Subcortical Microcircuits

    Författare :Philip Tully; Anders Lansner; Matthias Hennig; Gordon Pipa; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bayes rule; synaptic plasticity and memory modeling; intrinsic excitability; naïve Bayes classifier; spiking neural networks; Hebbian learning; neuromorphic engineering; reinforcement learning; temporal sequence learning; attractor network; Computer Science; Datalogi;

    Sammanfattning : Cortical and subcortical microcircuits are continuously modified throughout life. Despite ongoing changes these networks stubbornly maintain their functions, which persist although destabilizing synaptic and nonsynaptic mechanisms should ostensibly propel them towards runaway excitation or quiescence. LÄS MER

  3. 2. 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

  4. 3. Dopamine and the affective-cognitive gradient in the human striatum studied with multimodal brain imaging

    Författare :Filip Grill; Anna Rieckmann; Lars Nyberg; Alison Adcock; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dopamine; striatum; incentive; motor; associative; reinforcement learning; reward prediction error; positron emission tomography; functional magnetic resonance imaging; PET MR; cognitive modelling;

    Sammanfattning : Both dopamine and the dopamine rich brain area, striatum, have been linked to behaviors related to incentives, motor action, and associative processing. Most of the cortex sends projections to the striatum, these connections have been described as a gradient organization representing a repertoire of functional behaviors. LÄS MER

  5. 4. Coincidences and Paranormal Belief

    Författare :Gergö Hadlaczky; Joakim Westerlund; Henry Montgomery; Peter Brugger; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Coincidences; surprise; paranormal belief; parapsychology; telepathy; associative processing; probabilistic reasoning; Ganzfeld; associative learning; automatic processing; controlled processing; Psychology; psykologi;

    Sammanfattning : In this thesis it is argued that coincidences play an important role in the formation of belief, including belief in the paranormal. Three papers are presented. LÄS MER

  7. 5. Associative and non-associative processes in taste-aversion learning: exteroceptive context and neophobic responses

    Författare :Trevor Archer; Uppsala universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : .... LÄS MER