Auxiliadora Mena

Auxiliadora Mena
Universidad de Sevilla | US · Experimental Psychology

About

16
Publications
1,446
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188
Citations
Citations since 2017
10 Research Items
181 Citations
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201720182019202020212022202301020304050
Introduction
Skills and Expertise

Publications

Publications (16)
Article
Prepulse inhibition (PPI) refers to the modulation of the startle response by the presentation of a weaker stimulus prior to the onset of the startle stimulus. This response is consolidated along the maturation process of the mesocortical system, where the dopamine neurotransmitter plays an important role. In fact, it has been reported that agonist...
Book
Full-text available
Este libro se enmarca en la colección Investigación e intervención en Psicología e incluye ocho capítulos escritos por jóvenes investigadores que trabajan o han trabajado en el Laboratorio de Conducta Animal y Neurociencia de la Facultad de Psicología de la Universidad de Sevilla. En estos capítulos se conjuga la tradición de investigación que se h...
Article
Full-text available
Dopamine antagonist drugs have profound effects on locomotor activity. In particular, the administration of the D2 antagonist haloperidol produces a state that is similar to catalepsy. In order to confirm whether the modulation of the dopaminergic activity produced by haloperidol can act as an unconditioned stimulus, we carried out two experiments...
Data
Mean percent of freezing along sessions for Experiment 1 (SPSS file). (SAV)
Data
Mean percent of freezing along sessions for Experiment 2 (SPSS file). (SAV)
Conference Paper
Full-text available
When the effects of a drug are repeatedly associated with a neutral stimulus a Conditioned Response (CR) emerges that can be similar or opposed to the unconditional reaction induced by the drug. In previous experiments it has been demonstrated that administration of a dopamine agonist in the presence of a specific context results in a conditioned i...
Preprint
Full-text available
Dopamine antagonist drugs have profound effects on locomotor activity. In particular, the administration of the D2 antagonist haloperidol produces a state that is similar to catalepsy. In order to confirm whether the modulation of the dopaminergic activity produced by haloperidol can act as an unconditioned stimulus, we carried out two experiments...
Conference Paper
Full-text available
The aim of this study is to analyze the possible associations between contextual cues and those responses induced by agonists or antagonists of the dopamine system. Our hypothesis anticipates that repeated administration of dopaminergic drugs in the presence of a specific context will result in the establishment of an association between the contex...
Poster
Full-text available
Evaluative conditioning (EC) is defined as the change in the evaluation of a conditioned stimulus (CS) due to its pairing with a positive or negative unconditioned stimulus (US). According to sensitivity to extinction procedures, it has been distinguished two types of EC effects: evaluative identity conditioning (EIC) and evaluative cue conditionin...
Article
Three experiments explored the link between reward shifts and latent inhibition (LI). Using consummatory procedures, rewards were either downshifted from 32% to 4% sucrose (Experiments 1–2), or upshifted from 4% to 32% sucrose (Experiment 3). In both cases, appropriate unshifted controls were also included. LI was implemented in terms of fear condi...
Article
Full-text available
The startle response is composed by a set of reflex behaviors intended to prepare the organism to face a potentially relevant stimulus. This response can be modulated by several factors as, for example, repeated presentations of the stimulus (startle habituation), or by previous presentation of a weak stimulus (Prepulse Inhibition [PPI]). Both phen...
Article
The startle reflex magnitude can be modulated when a weak stimulus is presented before the onset of the startle stimulus, a phenomenon termed Prepulse Inhibition (PPI). Previous research has demonstrated that emotional processes can modulate PPI and startle intensity, but the available evidence is inconclusive. In order to obtain additional evidenc...
Article
The reduction of the startle response to an auditory stimulus caused by the presentation of another stimulus of lower intensity closely preceding it, a phenomenon known as prepulse inhibition (PPI), can be modulated by changes in dopaminergic activity. Schmajuk, Larrauri, De la Casa, and Levin (2009) demonstrated that this dopaminergic modulation o...

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Projects

Project (1)
Project
This project is focused in the analysis of the possible associations between contextual cues and those responses induced by agonists or antagonists of the dopamine system. Our hypothesis, based on previous data from the literature and in preliminary studies conducted in our laboratory, anticipates that the repeated administration of dopaminergic drugs in the presence of a specific context will result in the establishment of an association between the context and the effect of the drug. Such association will induce a conditioned response to the context similar to that produced by the drug administration. The implications of our results will be analyzed at a theoretical level, regarding the study of attentional and associative processes, and attending to the possibilities of using a context as an inductor of conditioned responses to modulate dopaminergic activity.