Conditioning, Classical (Latest Articles)

Latest indexed articles for 'Conditioning, Classical'

Articles 71 to 80 of 200:

Making context memories independent of the hippocampus.

22 Jun 2009 We present evidence that certain learning parameters can make a memory, even a very recent one, become independent of the hippocampus. We confirm earlier findings that damage to the hippocampus causes severe retrograde amnesia for context memories, ...
rec_pub_19553378-making-context-memories-independent-hippocampus.htm

Evidence of action sequence chunking in goal-directed instrumental conditioning and its dependence on the dorsomedial prefrontal cortex.

22 Jun 2009 The current study investigated the contribution of the dorsomedial prefrontal cortex (dmPFC) to instrumental action selection. We found that cell body lesions of the dmPFC, centered on the medial agranular area, spared rats' ability to choose ...
rec_pub_19553467-evidence-action-sequence-chunking-goal-directed-instrumental.htm

The formation of recent and remote memory is associated with time-dependent formation of dendritic spines in the hippocampus and anterior cingulate cortex.

22 Jun 2009 Although hippocampal-cortical interactions are crucial for the formation of enduring declarative memories, synaptic events that govern long-term memory storage remain mostly unclear. We present evidence that neuronal structural changes, i.e., ...
rec_pub_19553460-the-formation-recent-remote-memory-associated-time-dependent.htm

A cholinergic-dependent role for the entorhinal cortex in trace fear conditioning.

22 Jun 2009 Trace conditioning is considered a model of higher cognitive involvement in simple associative tasks. Studies of trace conditioning have shown that cortical areas and the hippocampal formation are required to associate events that occur at different ...
rec_pub_19553448-a-cholinergic-dependent-role-entorhinal-cortex-trace-fear-conditioning.htm

Phosphodiesterase 5 inhibition improves synaptic function, memory, and amyloid-beta load in an Alzheimer's disease mouse model.

22 Jun 2009 Memory loss, synaptic dysfunction, and accumulation of amyloid beta-peptides (A beta) are major hallmarks of Alzheimer's disease (AD). Downregulation of the nitric oxide/cGMP/cGMP-dependent protein kinase/c-AMP responsive element-binding protein ...
rec_pub_19553447-phosphodiesterase-5-inhibition-improves-synaptic-function-memory.htm

Learning enhances female control over reproductive investment in the Japanese quail.

15 Jun 2009 The adaptive significance of learning is supported by studies showing its positive effects on mating behaviour, but they rarely go beyond fertilization success. Here we studied how learning contributes to qualitative reproductive investment, by ...
rec_pub_19535375-learning-enhances-female-control-reproductive-investment-japanese.htm

A new touchscreen test of pattern separation: effect of hippocampal lesions.

15 Jun 2009 Researchers are becoming increasingly interested in the role of the hippocampus in pattern separation, a process which keeps items distinct in memory. In this study, we develop and test a new automated touchscreen-based method for studying pattern ...
rec_pub_19421077-a-new-touchscreen-test-pattern-separation-effect-hippocampal-lesions.htm

Lateral hypothalamus dopamine D1-like receptors and glucose-conditioned flavor preferences in rats.

14 Jun 2009 This study examined the role of dopamine D1-like receptor transmission in the lateral hypothalamus (LH) in flavor preference learning induced by intragastric (IG) infusions of glucose. Rats fitted with gastric catheters were injected daily in the LH ...
rec_pub_19539042-lateral-hypothalamus-dopamine-d1-like-receptors-glucose-conditioned.htm

Early calcium increase triggers the formation of olfactory long-term memory in honeybees.

14 Jun 2009 BACKGROUND: Synaptic plasticity associated with an important wave of gene transcription and protein synthesis underlies long-term memory processes. Calcium (Ca2+) plays an important role in a variety of neuronal functions and indirect evidence ...
rec_pub_19531205-early-calcium-increase-triggers-formation-olfactory-long-term-memory.htm

Role of the opioid system in incentive downshift situations.

12 Jun 2009 Previous research has shown that opioid blockage enhances consummatory successive negative contrast (cSNC)-a suppression of consummatory behavior following a downshift from 32% to 4% sucrose solution. In Experiment 1, administration of the ...
rec_pub_19531382-role-opioid-system-incentive-downshift-situations.htm

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