Cue location does not account for all selective associations in food aversion learning

Studies of food aversion learning have been widely interpreted as yielding evidence for selectivity in the associability of cues and consequences. On the one hand, taste cues were easily conditioned to interoceptive consequences (e.g. “illness”), but only with difficulty to exteroceptive consequences (e.g. shock). On the other hand, audiovisual stimuli were easily conditioned to shock, but only with difficulty to illness (Revusky and Garcia, 1970). Sullivan (1984) has emphasized that cue location and temporality have been important uncontrolled variables in many food-aversion studies and has argued that when these factors are taken into account, the supposed selectivity related to sensory modality is lost. Thus, Sullivan (1984) argues that shocks, like “illness”, are readily associated with tastes provided that the tastes are intrinsic attributes of the substances ingested.

Sullivan's important article may have demonstrated significant weaknesses in the evidence for specific associations of exteroceptive cues with shock rather than with “illness”, and this point will not be considered further. However, there are two aspects of Sullivan's case that cannot be substantiated. Firstly, the attempt to demonstrate that taste cues are as readily associated with shock as they are with “illness” is unconvincing. Secondly, unjustified assumptions are made about the nature of the unconditioned stimulus in conditioning with interoceptive consequences, which is presumed to be “illness” despite extensive evidence to the contrary.     

Typing letter strings varying in orthographic structure

Subjects typed six-letter strings varying in orthographic structure. Lexical status, word frequency, position-sensitive log bigram frequency, and regularity of letter sequencing were systematically varied. Cumulative reaction times (RTs) of the keystrokes were adequately described by a linear function of letter position in the test string. Overall, words were typed faster than nonwords, and regular strings faster than irregular strings. Although the effect of log bigram frequency was not significant, this variable interacted with regularity and word frequency. Post hoc analyses of performance on each of the 200 letter strings revealed significant effects of the number of irregularities, log bigram frequency, and log word frequency. Transition times between successive keystrokes were significantly longer for illegal than for legal letter transitions. These results are similar to previous findings on the role of orthographic structure in the perceptual recognition of letter strings and provide a more complete analysis of context effects in typing.     

Nevertheless,she persisted (in science research): Enhancing women students’ science research motivation and belonging through communal goals

Social Psychology of Education - There is no doubt that connections with other people motivate behavior; yet science is stereotyped as being lonely work devoid of communal connections. Drawing from...     

Real-time speech synthesis

This paper describes how a speech synthesizer can be controlled by a small computer in real time. The synthesizer allows precise control of the speech output that is necessary for experimental purposes. The control information is computed in real time during synthesis in order to reduce data storage. The properties of the synthesizer and the control program are prsented along with an example of the speech synthesis.     

A Tale of Two Cities: Predicting Homeless People's Uptake of Outreach Programs in London and New York

Two studies involved structured interviews with 203 homeless people to examine the impact of sociodemographic variables, prior behavior, and the theory of planned behavior (TPB) variables, attitudes, subjective norms, perceived behavioral control, and intention, on uptake of outreach services. Study 1 was conducted in London, and Study 2 involved a comparable sample in New York. In line with previous research, the psychological variables accounted for more variance than the sociodemographic variables, and there was no evidence that the effects of TPB variables were moderated by sociodemographics. In London intentions and behavior were most affected by perceived control and subjective norms. In New York they were most affected by perceived control and attitude. These differences may be attributable to different institutional structures and opportunities for service uptake in the two cities. Sensitivity of the TPB to social context and implications for intervention strategies are discussed in light of these differences.     

On‐line ostracism affects children differently from adolescents and adults

This research examines adults', and for the first time, children's and adolescents' reaction to being ostracized and included, using an on‐line game, ‘Cyberball’ with same and opposite sex players. Ostracism strongly threatened four primary needs (esteem, belonging, meaning, and control) and lowered mood among 8‐ to 9‐year‐olds, 13‐ to 14‐year‐olds, and adults. However, it did so in different ways. Ostracism threatened self‐esteem needs more among 8‐ to 9‐year‐olds than older participants. Among 13‐ to 14‐year‐olds, ostracism threatened belonging more than other needs. Belonging was threatened most when ostracism was participants' first experience in the game. Moreover, when participants had been included beforehand, ostracism threatened meaning needs most strongly. Gender of other players had no effect. Practical and developmental implications for social inclusion and on‐line experiences among children and young people are discussed.     

Reduced approach motivation following nonreward: Extension of the BIS/BAS scales

The current study describes the development and validation of a new subscale to be used with the BIS/BAS scales (Carver & White, 1994). This subscale measures lowered approach motivation following nonreward. Factor analysis of the new subscale was carried out within a sample of 308 University students, test–retest reliability was established within a sample of 62 individuals, and construct validity was explored in a sample of 86 individuals by comparing scores on the new subscale with those on an existing self-report measure of apathy and on a behavioural measure of persistence. Reliability and validity of the new frustrative nonreward responsiveness subscale was found to be adequate within the populations studied. The findings are discussed in relation to theoretical accounts of BAS and BIS sensitivity.