Processing of visual illusions in the frequency and spatial domains

In the results we report here, complex periodic and aperiodic illusions are revealed by filtering with filters containing one or more straight edges. Positive definite filters are used both in the frequency domain and in the space domain to reveal each illusion. Rotating slit and half-plane filters are used in the frequency domain, while processing is done in the spatial domain by convolution with a rotating slit. These two schemes show similar results in revealing the illusory patterns. The implications for human visual processing are discussed.     

Visual discrimination of shape by humans

Reaction times to tachistoscopic exposure and a card-sorting task are the two methods by which visual discrimination of shape is studied. The results of experiments using both methods tally, i.e. the order of difficulty of the following shapes was: (1) (easiest) circle vs. triangle; (2) circle vs. square; (3) square vs. triangle; (4) (most difficult) triangle vs. diamond. These results are compared with those obtained by Sutherland, using octopus, and it is concluded that it should be possible to establish to what extent the system of visual analysis in humans differs from that postulated for both octopus and rat.     

Cognitive Alteration of Feeling States: Historical Background

Within the scientific community there is a growing awareness and acceptance of the notion that people do not exist only in a world of physical forces and events. A person's perception of the world in which they live in a world is also defined by their own perceptions, experiences, and biases. In other words, a person responds and reacts, not only to objective or experimenter-defined stimuli, but also to his or her apperceptions and subjectively defined stimuli.     

Cognitive alteration of feeling states: Historical background

Within the scientific community there is a growing awareness and acceptance of the notion that people do not exist only in a world of physical forces and events. A person's perception of the world in which they live in a world is also defined by their own perceptions, experiences, and biases. In other words, a person responds and reacts, not only to objective or experimenter-defined stimuli, but also to his or her apperception and subjectively defined stimuli. Reprinted from London, Harvey and Richard E. Nisbett.Thought and Feeling: Cognitive Alteration of Feeling States. Aldine.     

David C. Lamberth,William James and the Metaphysics of Experience [Cambridge Studies in Religion and Critical Though,No. 5]

International Journal for Philosophy of Religion -     

The influence of affective statements on performance on implicit and explicit memory tasks

Consumers are often exposed to brand names presented concurrently with information such as brand claims and warnings, prior to making product choices. As implicit memory has been implicated in the consumer choice process, two experiments were conducted to assess the influence of additional information, namely simple positive and negative statements, on implicit and explicit memory tasks. In Experiment 1, the mere presence of additional statements at study significantly reduced performance on a two‐alternatives forced recognition task. However, the same manipulation had no effect on implicit preference judgement task performance. The valence of the accompanying information had no effect on either task. In Experiment 2, using modified implicit and explicit choice tasks, performance on the former was unaffected by statement valence, whereas the latter task was. Hence, positive priming was obtained for brand names previously shown with negative information. The results of the experiments are discussed in relation to both implicit memory and consumer choice. Copyright © 2002 John Wiley & Sons, Ltd.     

Comparison of decision learning models using the generalization criterion method

It is a hallmark of a good model to make accurate a priori predictions to new conditions ( Busemeyer & Wang, 2000 ). This study compared 8 decision learning models with respect to their generalizability. Participants performed 2 tasks (the Iowa Gambling Task and the Soochow Gambling Task), and each model made a priori predictions by estimating the parameters for each participant from 1 task and using those same parameters to predict on the other task. Three methods were used to evaluate the models at the individual level of analysis. The first method used a post hoc fit criterion, the second method used a generalization criterion for short-term predictions, and the third method again used a generalization criterion for long-term predictions. The results suggest that the models with the prospect utility function can make generalizable predictions to new conditions, and different learning models are needed for making short-versus long-term predictions on simple gambling tasks.     

What is an academic emotion? Insights from Filipino bilingual students’ emotion words associated with learning

We explored Filipino learners’ concept of academic emotions by studying the words they use to describe their emotional experiences associated with learning. Two main theoretical frames were used as reference in the analysis: Clore, Ortony, & Foss’ (1978) taxonomy of emotion words, and Pekrun’s (2006) dimensions of academic emotions. We asked Filipino learners to describe the positive and negative emotions that they associate with their learning experiences using an open ended questionnaire. The 676 students used 1337 words which were classified into root word categories; 38 categories which were mentioned by at least 1% of the participants were included in the analysis. The interpretive analysis suggested that Filipino learners’ concept of academic emotions includes appraisals of cognitive and even physical conditions, beyond the typical affective conditions assumed in theories of emotions and academic emotions. Moreover, Filipino learners’ concepts of academic emotions include a wider range of emotion concepts, and may require additional characteristic dimensions, compared to what is being studied in current academic emotions research.