Journal Articles

Journal Article: Relating consumer and trained panels’ discriminative sensitivities using vanilla flavored ice cream as a medium (2007)

Abstract: This research investigated the possibility of uncovering a relationship between the sensitivities of trained and consumer panels in three experiments. In Experiment I, five studies were conducted using vanilla flavored ice cream. In each study, two ice cream samples differing in formulation and/or their manufacturing process were used. They were compared by both...

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Journal Article: Describing the universal cover of a compact limit (2006)

Abstract: If X is the Gromov–Hausdorff limit of a sequence of Riemannian manifolds Mni with a uniform lower bound on Ricci curvature, Sormani and Wei have shown that the universal cover ˜X of X exists ; [C....

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Journal Article: The role of the basal ganglia in category learning (2006)

Abstract: Categorization is the act of responding differently to objects or events in separate classes or categories. It is a vitally important skill that allows us to approach friend and escape foe, to find food and avoid toxin. Every organism must have some categorization ability. Even bacteria categorize. For example, the bacterium e. coli...

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Journal Article: Sources and influence of perceptual variance: Comment on Dzhafarov’s regular minimality principle (2006)

Abstract: Dzhafarov claims that Regular Minimality (RM) is a fundamental property of ‘‘same–different’’ discrimination probabilities and supports his claim with some empirical evidence. The key feature of RM is that the mapping, h, between two observation areas...

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Journal Article: Empirical dissociations between rule-based and similarity-based categorization (2005)

Abstract: The target article postulates that rule-based and similaritybased categorization are best described by a unitary process. A number of recent empirical dissociations between rule-based and similarity-based categorization severely challenge this view. Collectively, these new results provide strong evidence that these two types of category learning are mediated by separate systems. This article appears...

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Journal Article: FROST: A distributed neurocomputational model of working memory maintenance (2005)

Abstract: Many studies suggest that the sustained activation underlying working memory (WM) maintenance is mediated by a distributed network that includes the prefrontal cortex and other structures (e.g., posterior parietal cortex, thalamus, globus pallidus, and the caudate nucleus). A computational model of WM, called FROST (short for FROntal–Striatal–Thalamic), is proposed in which the representation...

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Journal Article: Are three-sample tasks less sensitive than two-sample tasks? Memory effects in the testing of taste discrimination (2004)

Abstract: In order to provide insights into why discrimination protocols with three stimuli sometimes tend to be less sensitive than protocols with two stimuli, two experiments were conducted. In these experiments,the relative effects of memory decay and memory interference were investigated. Both experiments involved purified water and/or solutions of low NaCl concentration. In Experiment...

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Journal Article: Corroborating the 2-AFC and 2-AC Thurstonian models using both a model system and sparkling water (2004)

Abstract: Two experiments were conducted to investigate the suitability of the Thurstonian models for the 2-AFC (2-alternative forced choice) and 2-AC protocols (2-AFC test with a "no difference" option). The Thurstonian approach predicts that if the same subjects and products are used, the degree of difference measured between the products  (d0) should be the...

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Journal Article: Motivations for product consumption: Application of a probabilistic model to adolescent smoking (2004)

Abstract: This paper describes a method that can be used to investigate consumers’ reported reasons for using a particular product. This method is applied to ratings of degree of agreement with statements about reasons for product use. The method is illustrated using data on self-reported reasons for smoking among adolescents. The approach used is...

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Journal Article: A model of dopamine modulated cortical activation (2003)

Abstract: Standard techniques from pharmacology and current theories on the biochemistry of dopamine (DA) are used to derive a new model of how DA modulates cortical activation. The model assumes that DA potentiates the glutamate response through the NMDA receptor and depresses the glutamate response through non-NMDA receptors. A static version of the model...

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