Evaluation of the accuracy,reliability, efficiency,and acceptability of fast forwarding to score problem behavior

Technological advances have allowed professionals to obtain extended recordings of caregiver–client interactions in natural settings, but scoring recorded video at normal speed to identify instances of low‐rate problem behavior is impractical in terms of scoring time. Fast forwarding is a continuous measurement system in which all seconds of an observation are viewed at a speed faster than normal. In Study 1, we evaluated whether three groups of five observers could discriminate problem behavior at three fast‐forwarding speeds across 10‐min observations. We analyzed the efficiency of using fast forwarding compared to continuous scoring, and interobserver agreement across the fast‐forwarding speeds. In Study 2, we compared the accuracy, efficiency, and social acceptability of fast forwarding (3.5x) and momentary time sampling (3.5 s) across 90‐min observations. Results support the use of 3.5x fast forwarding as a viable measurement system of improving the practicality of scoring problem behavior from video.     

The Influence of Number Magnitude on Vocal Responses

The study investigated whether number magnitude can influence vocal responses. Participants produced either short or long version of the vowel [ɑ] (Experiment 1), or high or low-pitched version of that vowel (Experiment 2), according to the parity of a visually presented number. In addition to measuring reaction times (RT) of vocal responses, we measured the intensity, the fundamental frequency (f₀) and the first and second formants of the vocalization. The RTs showed that the long and high-pitched vocal responses were associated with large numbers, while short and low-pitched vocal responses were associated with small numbers. It was also found that high-pitched vocalizations were mapped with the odd numbers, while the low-pitched vocalizations were mapped with the even numbers. Finally, large numbers increased the f₀ values. The study shows systematic interactions between the processes that represent number magnitude and produce vocal responses.     

Correlates and stability of alternate stimuli in a computer-based measure of inspection time

Inspection time tasks assess the ability to make a simple visual discrimination, typically in milliseconds. Typically, IT stimuli consists of a pi-shaped figure, in which subjects select the side with the significantly longer leg. To prevent storage in iconic memory, a backward mask is then introduced. However, some participants have reported that the mask may cause the shorter leg to appear to lengthen, creating a possible strategy that facilitates performance. As a result, alternative stimuli/masks have been developed; however, these alternative stimuli may be processed differently. This study assessed the cognitive correlates and stability of an alternative stimuli/mask. Results indicated that processing of the stimuli was influenced by an interaction between the complexity of the stimuli and the number of times it was presented. Specifically, the alternative stimulus/mask produced slower processing, particularly at the time of a second administration; however, it contributed an important and unique relationship with speeded, general intelligence.     

Ethical objectivity: The test of time

According to many, evolutionary accounts of ethics undermine the prospects of its objective foundation. By contrast, this paper argues that such evolutionary accounts discredit only the absolutist construal of moral truths as timeless but supports other conceptions of objectivity as tested by time. Insofar as Kantian constructivism addresses the problem of ethical objectivity from the standpoint of temporal rational agents, it is not vulnerable to debunking arguments based on evolutionary explanations. In fact, recent work on evolutionary accounts of reasoning and inferences not only coheres with but it also reinforces the constructivist conception of practical reason as a problem‐solving cooperative device apt to temporal and interdependent rational agents.     

Attentional Resources Measured by Reaction Times Highlight Differences Within Pleasant and Unpleasant,High Arousing Stimuli

Simple reaction times (RTs) to acoustic tones were recorded during picture viewing in order to investigate attentional resource allocation to threat stimuli compared with pleasant (sport/adventure) and neutral (household objects) contents. Stimuli were selected as equally arousing according to standardized subjective ratings. In the late stage of picture processing threat pictures showed shorter RTs compared with neutral and pleasant ones. In a second study, a choice-RT task was employed, and a wider range of both pleasant and unpleasant contents was shown. Results indicated slower RTs when blood/injury and erotic couples were presented, compared with other threat, and with other positive (sport/adventure) scenes. Specifically, erotic couples require a greater amount of attentional resources compared with sport/adventure; the same is true for blood/injury stimuli as compared with threat. Remarkable differences were thus shown in attentional deployment to specific stimulus contents within the same valence category. These differences should be taken into account when using such stimuli to investigate emotional processing.     

时间管理倾向与生活质量关系的调查研究

用自编成人时间管理倾向量表和生活质量综合评定问卷对重庆市75名不同职业者进行问卷调查,以探讨时间管理倾向与生活质量的关系。研究结果表明：时间管理倾向各维度没有显著的性别差异,但在时间价值感、时间监控观和总体评价上存在文化程度的差异;生活质量中的四个维度也不存在性别差异,但在物质生活状况维度上存在显著的文化程度的差异;时间管理倾向和生活质量之间存在显著相关,时间管理效能对躯体功能、心理功能和社会功能具有显著的预测作用。     

Semantic category effect and emotional valence in female university students

The semantic category effect represents a category dissociation between biological and nonbiological objects in picture naming. The aim of this preliminary study was to further examine this phenomenon, and to explore the possible association between the effect and subjective emotional valence for the named objects. Using a speeded picture naming task, vocal reaction times for 45 items were divided into four categories based on emotional valence rating and semantic category, and examined in 36 female university students. Analyses of the data indicated an "animate/inanimate" category dissociation favouring animate objects, in tandem with a potential relationship between subjective emotional valence and semantic processing underlying picture naming.     

Effects of reinforcer magnitude on responding under differential-reinforcement-of-low-rate schedules of rats and pigeons

Experiment I investigated the effects of reinforcer magnitude on differential-reinforcement-of-low-rate (DRL) schedule performance in three phases. In Phase 1, two groups of rats (n = 6 and 5) responded under a DRI. 72-s schedule with reinforcer magnitudes of either 30 or 300 microl of water. After acquisition, the water amounts were reversed for each rat. In Phase 2, the effects of the same reinforcer magnitudes on DRL 18-s schedule performance were examined across conditions. In Phase 3, each rat responded unider a DR1. 18-s schedule in which the water amotnts alternated between 30 and 300 microl daily. Throughout each phase of Experiment 1, the larger reinforcer magnitude resulted in higher response rates and lower reinforcement rates. The peak of the interresponse-time distributions was at a lower value tinder the larger reinforcer magnitude. In Experiment 2, 3 pigeons responded under a DRL 20-s schedule in which reinforcer magnitude (1-s or 6-s access to grain) varied iron session to session. Higher response rates and lower reinforcement rates occurred tinder the longer hopper duration. These results demonstrate that larger reinforcer magnitudes engender less efficient DRL schedule performance in both rats and pigeons, and when reinforcer magnitude was held constant between sessions or was varied daily. The present results are consistent with previous research demonstrating a decrease in efficiency as a function of increased reinforcer magnituide tinder procedures that require a period of time without a specified response. These findings also support the claim that DRI. schedule performance is not governed solely by a timing process.     

Temporal and spatial concepts in child language: conventional and configurational

The purpose of this research was to study the temporal and spatial systems of child language. Configurational time/space refers to the location of events/objects relative to referent events/objects (e.g., before/after or across/along) and conventional time/space refers to the specification of cycles/directions and the measurement of duration/distance (e.g., winter/fall or North/South). The research was designed to determine how configurational and conventional notions of time and space emerge in the child's language. The average age of the children in the cross-sectional design was: 3;9, 6;7, and 8;7. The children received a comprehension test that required them to match a sentence with a picture. In general, configurational contrasts were easier to comprehend than conventional contrasts, and, within the configurational problems, location requiring a single referent was easier than location requiring multiple referents. There was no overall difference between temporal and spatial dimensions. The role of conceptual development was discussed within the context of a comparison between first and second language acquisition.