Gender Stereotypes in Spanish Television Commercials

The objective of the present study was an analysis of gender stereotypes in television advertisements in Spain. For this purpose the content analysis method was used to analyze 400 advertisements broadcast during prime time over the three national television channels with the largest audience. A series of variables common to similar investigations were coded in order to allow comparisons with other countries. The data show significant gender differences for all variables. Comparison of results with those of other researchers shows that television advertising in Spain reveals gender stereotypes very similar to those found in advertising from countries with a geographic or cultural proximity.     

A computational model of the Simon effect

Even though stimulus location is task irrelevant, reaction times are faster when the location of the stimulus corresponds with the location of the response than when it does not. This phenomenon is called the Simon effect. Most accounts of the Simon effect are based on the assumption that it arises from a conflict between the spatial code of the stimulus and that of the response. In this paper a computational model of this hypothesis is presented. It provides a computationally explicit mechanism of the Simon effect. Consistent with human performance, the model provides reaction times that indicate both an advantage for the ipsilateral, corresponding response (i.e., facilitation) and a disadvantage of the contralateral, noncorresponding response (i.e., inhibition). In addition, the model accounts for the fact that the size for the effect depends on task difficulty.     

Cognitive complexity and cerebral sensory interaction

To ascertain the amount of association between cognitive complexity and cerebral sensory interaction, visual, auditory and bimodal event-related potentials were recorded from 50 right-handed Caucasian males. Sensory interaction indices were derived for these Ss who had taken the Role Construct Repertory Test of cognitive complexity. Product-moment correlations were computed between sensory interaction indices for eight cerebral and cognitive complexity test scores. Sensory interaction for one left and all right hemisphere regions was significantly related to cognitive complexity. As sensory suppression lessened, cognitive complexity decreased. The results substantiated the theory that the visual-imaginal and the auditory-verbal representational systems are implicated in cognitive complexity. The extent to which the cortex can inhibit or attenuate the interaction between these dual symbol systems is associated with intricate cognitive processing.     

Space coding for sensorimotor transformations can emerge through unsupervised learning

The posterior parietal cortex (PPC) is fundamental for sensorimotor transformations because it combines multiple sensory inputs and posture signals into different spatial reference frames that drive motor programming. Here, we present a computational model mimicking the sensorimotor transformations occurring in the PPC. A recurrent neural network with one layer of hidden neurons (restricted Boltzmann machine) learned a stochastic generative model of the sensory data without supervision. After the unsupervised learning phase, the activity of the hidden neurons was used to compute a motor program (a population code on a bidimensional map) through a simple linear projection and delta rule learning. The average motor error, calculated as the difference between the expected and the computed output, was less than 3°. Importantly, analyses of the hidden neurons revealed gain-modulated visual receptive fields, thereby showing that space coding for sensorimotor transformations similar to that observed in the PPC can emerge through unsupervised learning. These results suggest that gain modulation is an efficient coding strategy to integrate visual and postural information toward the generation of motor commands.     

Validities,antivalidities and contingencies: A multi-standard approach

Journal of Philosophical Logic - It is widely accepted that classical logic is trivialized in the presence of a transparent truth-predicate. In this paper, we will explain why this point of view...     

The role of long-term-memory and short-term-memory links in the Simon effect

In Experiment 1, children performed a Simon task after a spatially compatible or incompatible task. Results showed a Simon effect after the spatially compatible task and a reversed Simon effect after the spatially incompatible task. In Experiments 2-5, an identical procedure was adopted with adult participants, who performed the Simon task immediately after, a day after, or a week after the spatial compatibility task. Experiment 6 established a baseline for the Simon effect. Results showed a Simon effect after the spatially compatible task and no Simon effect or a reversed Simon effect after the spatially incompatible task. A modified version of the computational model of M. Zorzi and C. Umiltà (1995) was used to compare possible accounts of the findings. The best account exploits 2 types of short-term-memory links between stimulus and response and their interaction with long-term-memory links.