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Neural mechanisms of stimulus generalization in auditory fear conditioning
Antunes, Raquel A. G.Dissertation presented to obtain the Ph.D degree in Neuroscience Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa ; Fear is a physiological trait with a strong weight on survival and adaptation. Great progress has been made to understand the mechanisms of fear learning, mainly using auditory fear conditioning (AFC). In this behavioral paradigm, an initial neutral tone (conditioned stimu...
Hormonal anticipation of territorial challenges in cichlid fish
Antunes, Raquel A.; Oliveira, Rui FilipeIn many territorial species androgens respond to social interactions. This response has been interpreted as a mechanism for adjusting aggressive motivation to a changing social environment. Therefore, it would be adaptive to anticipate social challenges and reacting to their clues with an anticipatory androgen response to adjust agonistic motivation to an imminent social challenge. Here we test the hypothesis o...
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