Behavioural Brain Research
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Inflammatory markers are associated with inhibitory avoidance memory deficit induced by sleep deprivation in rats.
Sleep deprivation (SD) causes detrimental effects to the body, such as memory impairment and weight loss. SD also changes the concentration of inflammatory mediators such as cytokines, which, in turn, can affect cognitive functioning. Thus, the objective of this study was to investigate the involveme...
Functional brain asymmetry in adult novelty response: on fluidity of neonatal novelty exposure effects.
We show that repeated brief exposures to the novelty of a non-home environment during infancy and early adulthood lead to long-lasting changes in adulthood in the global bi-lateralization organization of the brain as indexed by a transiently detectable right-sided orientating bias upon the initial e...
Picture recognition in animals and humans.
Our survey will lead to the conclusion that humans show evidence of picture recognition from an early age; this recognition is, however, facilitated by prior exposure to pictures. This same exposure or training effect appears also to be necessary in nonhuman primates as well as in other mammals and...
Transcutaneous electrical nerve stimulation (TENS) improves the rest-activity rhythm in midstage Alzheimer's disease.
Nightly restlessness in patients with Alzheimer's disease (AD) is probably due to a disorder of circadian rhythms. Transcutaneous electrical nerve stimulation (TENS) was previously reported to increase the strength of coupling of the circadian rest activity rhythm to Zeitgebers in early stage Alzhei...
Effects of medial and lateral caudate-putamen lesions on place- and cue-guided behaviors in the water maze: relation to thigmotaxis.
Rats with dorsomedial or dorsolateral caudate-putamen lesions and sham-operated controls were trained on the standard hidden platform (place) task in the water maze. Compared to controls, rats with dorsomedial, but not dorsolateral lesions were slower to escape to the hidden platform and spent signi...
How skilled are the skilled limb movements of the raccoon (Procyon lotor)?
These results suggest that raccoons are like primates in that they display visual guidance of reaching, but are similar to other carnivores in that they do not use convergent grasping and digit manipulation and frequently use bimanual grasping. The results, consistent with a growing body of informat...
The dorsocaudal neostriatum of the domestic chick: a structure serving higher associative functions.
The dorsocaudal neostriatal (dNC) complex consists of at least three functionally distinct subregions and is part of an 'imprinting' pathway, which interconnects several forebrain regions that are known to be involved in juvenile learning. Based on its anatomical features, at least one subregion of...
The medial frontal cortex and temporal memory: tests using spontaneous exploratory behaviour in the rat.
Evidence from several sources indicates that the frontal cortex is involved in memory involving time, or temporal memory, and in behavioral sequencing. Rats were presented with two familiar objects and the amount of exploration directed at each was recorded. Subjects directed more exploration at the...
Anterior forebrain pathway is needed for stable song expression in adult male white-crowned sparrows (Zonotrichia leucophrys).
These results are the first to indicate that the motor memories for song elements that had been practiced and discarded early in life are retained, and they suggest that 1MAN affects seasonal song expression by selectively reinforcing a particular song pattern....
Anxiety and cardiovascular reactivity: the basal forebrain cholinergic link.
The relations between anxiety states and autonomic functions are considered from the vantage of a model of the neural systems underlying anxiety and autonomic control. An important component of this model is the involvement of the basal forebrain cortical cholinergic system that is seen to play a cr...