Boundaries of cognitive performance as a function of age and flight experience

Age and expertise effects on time-sharing performance were examined. Pilots were considered to have an expertise in time-sharing because of their cockpit experience. Ninety pilots and nonpilots performed a battery of cognitive tasks that represented different aspects of piloting. The results revealed that time-sharing performance was age sensitive. However, expertise appeared to have some moderating influence on the age effects. Further, analysis of the overlap of the response distributions from different age groups suggested that age alone was not a definitive discriminator of an individual's time-sharing skill.     

Resource scarcity and outcome conflict in time-sharing performance

The efficacy of the resource-scarcity and outcome-conflict views in explaining dual-task interference was examined. A discrete—continuous task pair was purposely chosen to allow fine-grained analysis of time-shared performance. The relative priority of the dual task was manipulated by a secondary task technique to test for performance tradeoff that would be indicative of resource allocation. The temporal predictability of the discrete stimuli was manipulated to examine possible strategic avoidance of interference. The moment-by-moment data did not reveal any evidence for a switching strategy. It was concluded that the intricate interference patterns could be more easily interpreted within the resource framework than within the outcome-conflict framework.     

BRIEF REPORT Gratitude and prosocial behaviour: An experimental test of gratitude

McCullough, Kilpatrick, Emmons, and Larson (2001) posited that gratitude prompts individuals to behave prosocially. However, research supporting the prosocial effect of gratitude has relied on scenario and self-report methodology. To address limitations of previous research, this experiment utilised a laboratory induction of gratitude, a method that is potentially more covert than scenarios and that elicits actual grateful emotion. Prosocial responses to gratitude—operationalised as the distribution of resources to another—were paired with a self-report measure of gratitude to test the prosocial effect of gratitude. To investigate positive mood as an alternative explanation, this experiment compared responses of individuals receiving a favour to responses of individuals receiving a positive outcome by chance. A total of 40 participants were randomly assigned to either a Favour or Chance condition. Participants receiving a favour helped more and reported more gratitude compared to participants in the Chance condition.     

Hong Kong’s Umbrella Movement and the promotion of deviance

ABSTRACT

As a social movement demanding universal suffrage, Hong Kong’s Umbrella Movement mobilized thousands of young protesters and fomented radical views stridently subversive of mainland China’s political interference. The social movement continues to promote further forms of deviance in the form of calling for independence. As the city and former British colony lacks the sovereignty of statehood and democracy, the movement’s non-conformity to law needs to be contextualized as a form of deviance. In contributing to the deviancy of social movements, we utilize data obtained from interviews with participants of the movement alongside those who opposed the protest to understand the East Asian cultural setting of the Umbrella Movement’s promotion of deviance.     

Appearances aren't everything: shape classifiers and referential processing in Cantonese

Cantonese shape classifiers encode perceptual information that is characteristic of their associated nouns, although certain nouns are exceptional. For example, the classifier tiu occurs primarily with nouns for long-narrow-flexible objects (e.g., scarves, snakes, and ropes) and also occurs with the noun for a (short, rigid) key. In 3 experiments, we explored how the semantic information encoded in shape classifiers influences language comprehension. When judging the fit between classifiers and depicted objects in an explicit ranking task, Cantonese speakers evaluated classifier-noun pairings solely in terms of grammatical well-formedness and showed no separate sensitivity to the shape features of objects. In an eye-tracking task (Experiment 2), we also found little sensitivity to shape classifier semantics during real-time comprehension. However, in a subsequent experiment in which referent objects lacked the prototypical features for their accompanying classifiers (Experiment 3), an influence of shape semantics was found in participants' incidental fixations to nontarget objects. We conclude that shape classifiers influence referential interpretation primarily through their grammatical constraints, consistent with the agreementlike nature of classifiers in general. The role of shape classifiers' semantics on processing is apparent only in specific circumstances.     

The cognitive profile and multiple-deficit hypothesis in Chinese developmental dyslexia

The present study was conducted to examine the cognitive profile and multiple-deficit hypothesis in Chinese developmental dyslexia. Thirty Chinese dyslexic children in Hong Kong were compared with 30 average readers of the same chronological age (CA controls) and 30 average readers of the same reading level (RL controls) in a number of rapid naming, visual, phonological, and orthographic tasks. Chinese dyslexic children performed significantly worse than the CA controls but similarly to the RL controls on most of the cognitive tasks. The rapid naming deficit was found to be the most dominant type of cognitive deficit in Chinese dyslexic children. Over half of the dyslexic children exhibited deficits in 3 or more cognitive areas, and there was a significant association between the number of cognitive deficits and the degree of reading and spelling impairment. The present findings support the multiple-deficit hypothesis in Chinese developmental dyslexia.     

Long-term memory for music: infants remember tempo and timbre

We show that infants' long-term memory representations for melodies are not just reduced to the structural features of relative pitches and durations, but contain surface or performance tempo- and timbre-specific information. Using a head turn preference procedure, we found that after a one week exposure to an old English folk song, infants preferred to listen to a novel folk song, indicating that they remembered the familiarized melody. However, if the tempo (25% faster or slower) or instrument timbre (harp vs. piano) of the familiarized melody was changed at test, infants showed no preference, indicating that they remembered the specific tempo and timbre of the melodies. The results are consistent with an exemplar-based model of memory in infancy rather than one in which structural features are extracted and performance features forgotten.     

Forgiveness,forbearance, and time: the temporal unfolding of transgression-related interpersonal motivations

The investigators proposed that transgression-related interpersonal motivations result from 3 psychological parameters: forbearance (abstinence from avoidance and revenge motivations, and maintenance of benevolence), trend forgiveness (reductions in avoidance and revenge, and increases in benevolence), and temporary forgiveness (transient reductions in avoidance and revenge, and transient increases in benevolence). In 2 studies, the investigators examined this 3-parameter model. Initial ratings of transgression severity and empathy were directly related to forbearance but not trend forgiveness. Initial responsibility attributions were inversely related to forbearance but directly related to trend forgiveness. When people experienced high empathy and low responsibility attributions, they also tended to experience temporary forgiveness. The distinctiveness of each of these 3 parameters underscores the importance of studying forgiveness temporally.     

The Age and Gender Effect on Four Forms of Peer Victimization among Chinese Children and Adolescents

Applied Research in Quality of Life - This study is the first to examine the effects of age and gender on different forms of peer victimization among local Chinese schoolchildren in Hong Kong. The...