The cortex in multidimensional space: where do cortical areas come from?

The concept of a cortical ‘area’ as a discrete phylogenetic, developmental and computational unit is evaluated. Evidence including the comparative organization of the forebrain in vertebrates, the organization of cortex in different mammals, the scaling of the areas of the isocortex in mammals, and the early molecular differentiation of the cortex all suggest a special status for the primary sensory cortical areas, particularly the visual cortex. Furthermore, the overlapping gradients of early molecular expression and the patterning of cortical structure and connectivity by thalamic input suggest a new view of cortical organization that is different from the traditional view of a developmentally mosaic cortex; this view proposes that distinct cortical areas arise combinatorily from the multiple overlapping processes imposed upon the developing cortex.     

Where do hypotheses come from?

Why are human inferences sometimes remarkably close to the Bayesian ideal and other times systematically biased? In particular, why do humans make near-rational inferences in some natural domains where the candidate hypotheses are explicitly available, whereas tasks in similar domains requiring the self-generation of hypotheses produce systematic deviations from rational inference. We propose that these deviations arise from algorithmic processes approximating Bayes’ rule. Specifically in our account, hypotheses are generated stochastically from a sampling process, such that the sampled hypotheses form a Monte Carlo approximation of the posterior. While this approximation will converge to the true posterior in the limit of infinite samples, we take a small number of samples as we expect that the number of samples humans take is limited. We show that this model recreates several well-documented experimental findings such as anchoring and adjustment, subadditivity, superadditivity, the crowd within as well as the self-generation effect, the weak evidence, and the dud alternative effects. We confirm the model’s prediction that superadditivity and subadditivity can be induced within the same paradigm by manipulating the unpacking and typicality of hypotheses. We also partially confirm our model’s prediction about the effect of time pressure and cognitive load on these effects.     

Where do Bayesian priors come from?

Bayesian prior probabilities have an important place in probabilistic and statistical methods. In spite of this fact, the analysis of where these priors come from and how they are formed has received little attention. It is reasonable to excuse the lack, in the foundational literature, of detailed psychological theory of what are the mechanisms by which prior probabilities are formed. But it is less excusable that there is an almost total absence of a detailed discussion of the highly differentiating nature of past experience in forming a prior. The focus here is on what kind of account, even if necessarily schematic, can be given about the psychological mechanisms back of the formation of Bayesian priors. The last section examines a detailed experiment relevant to how priors are learned.     

Multimedia: where are we now and where do we go from here?

This paper comments on the current state and future role of computer-based multimedia in psychology instruction. It includes practical tips on getting started with successful multimedia production. It also introduces a new World-Wide Web site archiving this information as well as other useful multimedia production and teaching resources.     

Developmental differences in working memory: Where do they come from?

Several models assume that working memory development depends on age-related increases in efficiency and speed of processing. However, age-related increases in the efficiency of the mechanisms that counteract forgetting and restore memory traces may also be important. This hypothesis was tested in three experiments by manipulating both the processing duration within a working memory task and the time available to restore memory traces. Third- and sixth-grade children performed a complex span task in which they maintained series of letters while adding numbers to series of digits. When we equated processing and restoration times between ages, the developmental difference in working memory span was reduced but remained significant. However, this residual difference was eliminated when the time available to reactivate memory traces was tailored to the processing speed of each age group. This indicates that children employ active mechanisms for maintenance and restoration of memory traces that develop with age.     

Personal selling and the purchasing function: where do we go from here?

The business-to-business selling function has changed over the years, with more informed and demanding buyers, prompting firms to move toward a more consultative, solution-selling approach. While these changes have been the focus of extensive research in the personal selling and sales management domain, the customer side of the interaction dyad requires more examination. Even within the context of the customer side, insufficient attention has been paid to the purchasing function in business-to-business (B2B) selling research. Given the increased importance in customer organizations of the purchasing function, this article presents a literature review that highlights the purchasing function's personal selling and sales management needs and argues that, as the purchasing function becomes more important and its needs evolve, personal selling and sales strategies also need to evolve. The article highlights areas for future research in this domain.     

Where do dialectal effects on speech processing come from? Evidence from a cross-dialect investigation

Accented speech has been seen as an additional impediment for speech processing; it usually adds linguistic and cognitive load to the listener's task. In the current study we analyse where the processing costs of regional dialects come from, a question that has not been answered yet. We quantify the proficiency of Basque–Spanish bilinguals who have different native dialects of Basque on many dimensions and test for costs at each of three levels of processing–phonemic discrimination, word recognition, and semantic processing. The ability to discriminate a dialect-specific contrast is affected by a bilingual's linguistic background less than lexical access is, and an individual's difficulty in lexical access is correlated with basic discrimination problems. Once lexical access is achieved, dialectal variation has little impact on semantic processing. The results are discussed in terms of the presence or absence of correlations between different processing levels. The implications of the results are considered for how models of spoken word recognition handle dialectal variation.     

Three approaches to the psychology of culture: Where do they come from? Where can they go?

Cultural psychology, cross-cultural psychology, and indigenous psychology are three approaches to the psychology of culture. The author begins by comparing the three approaches – conceptually, methodologically; and historically. She concludes that each approach has contributed knowledge of the "deep structure" of culture to the field of psychology. This "deep structure" consists of the framework of individualism and collectivism; particular cultures are therefore surface forms of one or the other of these basic cultural frameworks. Rather than being universal, classical social and developmental psychology are seen as reflecting a particular indigenous psychology. For the future, a truly universal psychology must offer a theoretical framework that encompasses alternative indigenous psychologies.     

Inhibitory phonetic priming: Where does the effect come from?

Both phonological and phonetic priming studies reveal inhibitory effects that have been interpreted as resulting from lexical competition between the prime and the target. We present a series of phonetic priming experiments that contrasted this lexical locus explanation with that of a prelexical locus by manipulating the lexical status of the prime and the target and the task used. In the related condition of all experiments, spoken targets were preceded by spoken primes that were phonetically similar but shared no phonemes with the target (/bak/–/dεt/). In Experiments 1 and 2, word and nonword primes produced an inhibitory effect of equal size in shadowing and same–different tasks respectively. Experiments 3 and 4 showed robust inhibitory phonetic priming on both word and nonword targets in the shadowing task, but no effect at all in a lexical decision task. Together, these findings show that the inhibitory phonetic priming effect occurs independently of the lexical status of both the prime and the target, and only in tasks that do not necessarily require the activation of lexical representations. Our study thus argues in favour of a prelexical locus for this effect.     

Intraindividual models of employee well-being: What have we learned and where do we go from here?

As societal concern shifts from financial survival towards quality of life issues, both in and outside of the workplace, scholarly interest in employee well-being too has risen greatly in recent years. This greater attention to the antecedents and outcomes of employee well-being, such as job satisfaction, work engagement, and job burnout amongst others, is reflected in the proliferation of theories, constructs, and studies seeking to describe and explain why employees flourish or become exhausted at work, and the effect of employee well-being on individual behaviours and the organization at large. In this article, we provide a selective review of the current state of research in employee well-being, as well as key theories that have been employed in its study, with the aim of providing a critical assessment of the current state of employee well-being research as well as suggest future directions for the field. In particular, we discuss how research adopting intraindividual perspectives in the study of employee well-being can not only add value to our understanding of well-being but also complement the findings from between-individual studies, and offer suggestions for the development of a comprehensive theoretical model that integrates the two perspectives.     

Eye movements during multiple object tracking: where do participants look?

Similar to the eye movements you might make when viewing a sports game, this experiment investigated where participants tend to look while keeping track of multiple objects. While eye movements were recorded, participants tracked either 1 or 3 of 8 red dots that moved randomly within a square box on a black background. Results indicated that participants fixated closer to targets more often than to distractors. However, on 3-target trials, fixation was closer to the center of the triangle formed by the targets more often than to any individual targets. This center-looking strategy seemed to reflect that people were grouping the targets into a single object rather than simultaneously minimizing all target eccentricities. Here we find that observers deliberately focus their eyes on a location that is different from the objects they are attending, perhaps as a consequence of representing those objects as a group.     

Where do desires come from? Positivity offset and negativity bias predict implicit attitude toward temptations

Temptations elicit both appetitive and aversive responses because they offer hedonic gratification on the one hand and impede long-term goal pursuit on the other hand (Fujita, Personality and Social Psychology Review 15(4):352–366, 2011). In this paper, we investigate how people’s affective responses toward temptations are regulated by the appetitive and aversive motivational systems. We employ the mini Motivated Action Measure (miniMAM; Lang et al., Communication Methods and Measures 5(2):146–162, 2011) to measure the signature patterns with which the two systems regulate affective activation: positivity offset and negativity bias. We found that positivity offset and negativity bias predict unique variance (5.5%) of dieters’ (N?=?312) implicit attitude toward tempting foods, over and above predictors related to behavioral regulation (BIS/BAS: Carver, White, Journal of Personality and Social Psychology 67:319–333, 1994; BSC: Tangney et al., Journal of Personality 72(2):271–324, 2004). By contrast, positivity offset and negativity bias did not predict dieters’ behavioral intentions for tempting foods. Investigating how the appetitive and aversive systems regulate affective activation apart from behavioral responses offers unique insights into people’s desires towards temptations.     

How do horses (Equus caballus) learn from observing human action?

Animal Cognition - A previous study demonstrated that horses can learn socially from observing humans, but could not draw any conclusions about the social learning mechanisms. Here we develop this...