Majority and minority influence in group negotiation: The moderating effects of social motivation and decision rules.

In organizational groups, often a majority has aligned preferences that oppose those of a minority. Although such situations may give rise to majority coalitions that exclude the minority or to minorities blocking unfavorable agreements, structural and motivational factors may stimulate groups to engage in integrative negotiation, leading to collectively beneficial agreements. An experiment with 97 3-person groups was designed to test hypotheses about the interactions among decision rule, the majority's social motivation, and the minority's social motivation. Results showed that under unanimity rule, minority members block decisions, thus harming the group, but only when the minority has proself motivation. Under majority rule, majority members coalesce at the minority's expense, but only when the majority has a proself motivation. Implications for negotiation research and group decision making are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

"Ten years of research on the false-consensus effect: An empirical and theoretical review": Correction to Marks and Miller.

Reports an error in "Ten years of research on the false-consensus effect: An empirical and theoretical review" by Gary Marks and Norman Miller (Psychological Bulletin, 1987[Jul], Vol 102[1], 72-90). The block quotation on page 73 should be attributed to Crocker (1981). The two sentences immediately preceding this quotation should read: "Friendship groups typically exhibit a high degree of internal similarity with respect to members' beliefs, attitudes, values, and interests. Crocker (1981) reported the following:". (The following abstract of the original article appeared in record 1987-31255-001.) Ten years of research on the false-consensus effect (Ross, Greene, & House, 1977) and related biases in social perception (e.g., assumed similarity and overestimation of consensus) are examined in the light of four general theoretical perspectives: (a) selective exposure and cognitive availability, (b) salience and focus of attention, (c) logical information processing, and (d) motivational processes. The findings indicate that these biases are influenced by a host of variables and that no single explanation can account for the range of data. Instead, each theoretical perspective appears to have its own domain of application, albeit with some degree of overlap into other domains. The data further suggest that two or more specific mechanisms may operate simultaneously or in concert to produce assumed similarity and false-consensus effects. Discussion focuses on identifying the process or sets of processes operating in specific situations. We identify several gaps in the knowledge of mediating relationships and suggest directions for future research. We also discuss issues related to definition and measurement. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

"Recovery of sensorimotor function after frontal cortex damage in rats: Evidence that the serial lesion effect is due to serial recovery": Correction.

Reports an error in "Recovery of sensorimotor function after frontal cortex damage in rats: Evidence that the serial lesion effect is due to serial recovery" by John M. de Castro and Mark C. Zrull (Behavioral Neuroscience, 1988[Dec], Vol 102[6], 843-851). The plate for this article appears on page 996. The information should read, "Plate B. Photographs of the dorsal side of the brains showing the minimum (top) and maximum (bottom) extent of the lesion produced unilaterally in the sham group (left) and bilaterally in the single- and two-stage groups (right)." (The following abstract of the original article appeared in record 1989-28759-001.) Multiple-staged brain lesions produce fewer and smaller behavioral effects than single surgery (the serial lesion effect, SLE). Two hypotheses were tested: the reduced deficit hypothesis and the serial recovery hypothesis. Effects of lesions of the medial frontal cortex on sensorimotor behavior were investigated in 7 rats that received bilateral damage in single surgery, 16 in 2 unilateral stages separated by 3 wks, or 5 with unilateral damage followed 3 wks later by sham surgery. Unilateral damage produced deficits on the contralateral side in response to visual, tactile, and olfactory stimuli and impairments in roll-over and paw withdrawal responses. All impairments except visual placement recovered over the next 3 wks. A 2nd unilateral lesion on the contralateral side produced the same symptoms on the opposite side. Bilateral damage incurred in a single stage produced the same deficits on both sides. Because the effects of the 2nd unilateral lesion in the 2-stage group produced comparable contralateral effects to those produced in the single-stage group, but no reinstatement of ipsilateral deficits, the reduced deficit hypothesis was rejected. It was concluded that SLE occurred as a result of serial recovery of the deficits. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effects of sad mood on memory in older adults: A test of the mood congruence effect.

Mood congruence effects have long been studied in younger adults. but not in older adults. Socioemotional selectivity theory (SST) suggests that mood congruence could operate differently in older adults. One hundred and nineteen younger and 78 older adults were randomly assigned to sad or neutral mood inductions, using combined Velten and music induction procedures. Results indicated that during sad mood induction both older and younger adults showed enhanced recall of sad words on delayed word list recall task and in autobiographical memory. However, only older adults displayed mood congruence effects on lexical ambiguity and lower recall of positive words in the word list task. Results provided partial support for developmental effects on mood congruence derived from SST. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Re(de)fining the orthographic neighborhood: The role of addition and deletion neighbors in lexical decision and reading.

The influence of addition and deletion neighbors on visual word identification was investigated in four experiments. Experiments 1 and 2 used Spanish stimuli. In Experiment 1, lexical decision latencies were slower and less accurate for words and nonwords with higher-frequency deletion neighbors (e.g., jugar in juzgar), relative to control stimuli. Experiment 2 showed a similar interference effect for words and nonwords with higher-frequency addition neighbors (e.g., conejo, which has the addition neighbor consejo), relative to control stimuli. Experiment 3 replicated this addition neighbor interference effect in a lexical decision experiment with English stimuli. Across all three experiments, interference effects were always evident for addition/deletion neighbors with word-outer overlap, usually present for those with word-initial overlap, but never present for those with word-final overlap. Experiment 4 replicated the addition/deletion neighbor inhibitory effects in a Spanish sentence reading task in which the participants’ eye movements were monitored. These findings suggest that conventional orthographic neighborhood metrics should be redefined. In addition to its methodological implications, this conclusion has significant theoretical implications for input coding schemes and the mechanisms underlying word recognition. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A rose by any other name is not the same: The role of orthographic knowledge in homophone confusion errors.

Homophone confusion errors were examined in a series of 6 experiments. Across a variety of tasks, readers consistently made more errors on homophone trials than on control trials. These effects were established in Experiment 1 using a semantic-decision task in which participants judged whether pairs of words were related or unrelated. For both related and unrelated trials, error rates were higher for homophones as compared with controls. Results such as these have previously been taken as evidence for the role of phonology in lexical access and reading. However, differences in orthographic knowledge (more specifically, knowledge of spelling-to-meaning correspondences) across participants and homophone items significantly predicted homophone errors across all tasks. In addition, spelling tasks and multiple-choice questionnaires revealed differences in orthographic knowledge across participants and homophone items. Although these results do not rule out a role for phonology in lexical access, they indicate that homophone confusion errors may also be due to factors other than phonology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The role of orthographic and phonological codes in the word and the pseudoword superiority effect: An analysis by means of multinomial processing tree models.

Central to the current accounts of the word and the pseudoword superiority effect (WSE and PWSE, respectively) is the concept of a unitized code that is less susceptible to masking than single-letter codes. Current explanations of the WSE and PWSE assume that this unitized code is orthographic, explaining these phenomena by the assumption of dual read-out from unitized and single-letter codes. In this article, orthographic dual read-out models are compared with a phonological dual read-out model (which is based on the assumption that the 1st unitized code is phonological). From this phonological code, an orthographic code is derived, through either lexical access or assembly. Comparison of the orthographic and phonological dual read-out models was performed by formulating both models as multinomial processing tree models. From an application of these models to the data of 2 letter identification experiments, it was clear that the orthographic dual read-out models are insufficient as an explanation of the PWSE, whereas the phonological dual read-out model is sufficient. (PsycINFO Database Record (c) 2010 APA, all rights reserved)