Evidence for altered Fragile-X mental retardation protein expression in response to behavioral stimulation

The Fragile-X mental retardation protein, the protein absent in Fragile-X syndrome, is synthesized near synapses upon neurotransmitter activation. Humans and mice lacking this protein exhibit abnormal dendritic spine lengths and numbers. Here we investigated Fragile-X protein levels in animals exposed to behavioral paradigms that induce neuronal morphological change. Fragile-X protein immunoreactivity was examined in visual cortices of rats reared in a complex environment for 10 or 20 days, motor cortices of rats trained on motor-skill tasks for 3 or 7 days, and either visual or motor cortices of inactive controls. Rats exposed to a complex environment for 20 days or trained for 7 days on motor-skill tasks exhibited increased Fragile-X protein immunoreactivity in visual or motor cortices, respectively. These results provide the first evidence for a behaviorally induced alteration of Fragile-X protein expression and are compatible with previous findings suggesting synaptic regulation of its expression. These results also strengthen the association of Fragile-X mental retardation protein expression with the alteration of synaptic structure.     

Malleable conjoint partworths: How the breadth of response scales alters price sensitivity

In one laboratory study and one field study conducted with a large, representative sample of respondents, we show that seemingly innocuous questions that precede a conjoint task, such as demographic and usage-related screening questions can alter the price sensitivities recovered from the main conjoint task. The findings demonstrate that whether these prior questions use broad response categories (i.e., few scale points) or narrow response categories (i.e., many scale points) systematically influences consumers' price sensitivity in a CBC (Choice Based Conjoint) study. We suggest that this may occur because the narrow (vs. broad) response categories in the prior questions lead to consideration of a greater (vs. fewer) number of attributes during the key conjoint task. Since both groups of consumers readily consider the naturally salient price attribute, responding to previous questions with narrow (vs. broad) response categories leads to a greater (vs. fewer) number of non-price attributes being considered, and consequently, decrease the weight afforded to price and reduce price sensitivity.     

Partitioned Presentation of Multicomponent Bundle Prices: Evaluation,Choice and Underlying Processing Effects

Firms may choose to present the price of a multicomponent product bundle in partitioned (separate price for each mandatory component) or consolidated (single, equivalent price) fashion. In this article, we report on 2 experiments that examined the effects of such presentations on evaluations and choices as well as the underlying processing effects. In Experiment 1, consistent with a mental accounting analysis, a multicomponent product bundle was evaluated more favorably and chosen more often when its components were presented with partitioned (vs. consolidated) prices. The effects were, however, moderated by the component partitioned. In particular, it appeared that partitioning prices altered attention paid to the components partitioned and related product features. In Experiment 2, we found that different splits of the bundle price influenced evaluations and choices depending on how the focal product price related to that of a comparison option. These price‐split effects were also moderated by the component partitioned, suggesting attention effects similar to Experiment 1. The findings show that although the effects of price partitioning were consistent with mental accounting principles, they were moderated by information processing effects related to the partitioned component.     

Voices Unheard: The Psychology of Consumption in Poverty and Development

Many facets of contemporary global problems posed by poverty pertain to the deprivation of consumption capability and are within the consumer psychologist's expertise domain. This article (based on my 2004 Presidential Address to the Society for Consumer Psychology [SCP]) outlines how consumer psychology research can contribute an understanding of the cognitive, motivational, and sociocultural dimensions of poverty, and how poverty depletes and alters the human need and capacity to consume. Consumer psychology research can also help suggest the nature and function of material and psychological interventions that can help ameliorate these conditions, focusing their design and monitoring their effects. These are important research priorities for consumer psychologists and deserve more and sustained attention from our community. Apart from garnering voice in policy conversations in government, industry, and academe, such research eventually will enhance our field's substantive contribution to improving the contemporary human condition.     

A Process Analysis of the Effects of Humorous Advertising Executions on Brand Claims Memory

We report 2 studies that examined how the strength of humorous advertising executions and their relevance to the brand claims in the advertisement influence consumer memory for the claims. We infer the underlying memory processes by testing claims memory using recall, recognition, and indirect tests following incidental exposure to advertisements manipulating humor strength and claims relevance. Memory for the humor component was checked as corroborating evidence. We also validated these inferences by contrasting these effects on claims and humor memory with those under instructed elaboration. Study 1 shows that for humor of low claims relevance, brand claims memory is an inverted U‐shaped function of humor strength. Compared to both nonhumor and high‐strength humor, moderate humor facilitates both encoding and retrieval of the claims. The patterns of humor memory and instructed elaboration effects suggest that low‐relevance humor is not spontaneously linked to the claims even when processing resources are available. Study 2 shows that when strong humor is made more relevant, brand claims memory improves even during incidental exposure. Corresponding humor memory and instructed elaboration effects imply that relevance encourages the formation of humor‐claims links that facilitate encoding and retrieval of the claims. The results show that although strong humor inhibits the processing received by the brand claims, enhancing its claims relevance can compensate for such inhibition.