Human information processing

This study tests Newports Less is More hypothesis with a language teaching experiment. Computerized French language lessons were presented to forty-two adults over two one-hour sessions. Learning trials were presented either in full sentences to resemble the adult learning environment, or in small increments that gradually increased to full sentences, resembling the steadily expanding processing capabilities of children. Trials were also presented randomly or ordered such that multiple examples of the same objects and verbs were presented consecutively. Language proficiency tests were administered after the lessons. A 2 (Presentation: incremental or full sentence) x 2 (Order of presentation: blocked or random) mixed ANOVA was used to analyze the data. The incremental conditions outperformed the sentence conditions on all proficiency measures. There was no significant effect of the blocking manipulation. This outcome suggests that a teaching method based on Newport's Less is More hypothesis can be advantageous in learning a foreign language.

Despite extensive research into memory and violence, relatively little is known about the relationship between violent media and memory of advertised products. Research has yielded contradictory evidence ; some scholars have found a negative relationship, others a nonexistent one... This research investigated the role of emotion in the relationship between violent media and product placement memory. This study creates insight into inconclusive previous findings by providing evidence that violence influences product memory. Specifically, participants were significantly worse at remembering products placed within violent clips (e.g., free recall, cued recall, recognition. Participants' emotional responses to the violent clips also appeared to influence their memory for embedded products ; product recognition was significantly correlated with disgust, avoidance, and interest ratings.... Interestingly, stronger negative responses to the violent clips were correlated with decreased preference for the embedded products. Furthermore, the pattern of differences for product preference between target and non-target violent products varied according to negative emotional reaction. Therefore, this dissertation provides insight into the role emotion plays in the relationship between viewing violent media and product placement memory.

Contemporary understanding of human visual spatial attention rests on the hypothesis of a top-down control sending from cortical regions carrying higher-level functions to sensory regions. Evidence has been gathered through functional Magnetic Resonance Imaging (fMRI) experiments. The Frontal Eye Field (FEF) and IntraParietal Sulcus (IPS) are candidates proposed to form the frontoparietal attention network for top-down control. In this work we examined the influence patterns between frontoparietal network and Visual Occipital Cortex (VOC) using a statistical measure, Granger Causality (GC), with fMRI data acquired from subjects participated in a covert attention task. We found a directional asymmetry in GC between FEF/IPS and VOC, and further identified retinotopically specific control patterns in top-down GC. This work may lead to deeper understanding of goal-directed attention, as well as the application of GC to analyzing higher-level cognitive functions in healthy functioning human brain.

Parents' and children's behaviors are intricately woven together over the course of development. Consequently it is difficulty to determine the sources of influence predicting socially and academically oriented outcomes. Research from several developmental fields suggests that developing mechanisms of attention during the preschool years is crucial for both emotional and cognitive control. The current study shows that parental responsive behavior is important in understanding the development of voluntary attention. More specifically, the results suggest that parental awareness, assessed utilizing their perceptions of attentive temperament is an important factor in predicting their own behavior and the developmental outcomes of their children.

This experiment investigated an individual's memory of specific motion events, unique actor, intrinsic motion, and extrinsic motion combination. Intrinsic motions involve the movement of an individual's body parts in a specific manner to move around, while extrinsic motions specify a path in reference to an external object. Participants viewed video clips, each depicting an actor performing a unique extrinsic and intrinsic motion combination. One week later, they viewed a different series of retrieval video clips consisting of old (identical to encoding), extrinsic conjunction (extrinsic motion previously performed by different actor), intrinsic conjunction (intrinsic motion previously performed by different actor), and new (novel extrinsic or intrinsic motion) video clips. Participants responded "yes" to viewing the old video clips the most often, followed by conjunction video clips, and then new video clips. Furthermore, there were a greater number of "yes" event memory recognition responses for extrinsic conjunction items than intrinsic conjunction items.

This study provides evidence for an age bias in face recognition. Younger adults viewed short video clips of young actors or of actors over the age of 60 performing everyday actions. One week later, participants were tested on their memory for these events. Recognition event types included same, completely new, and conjunction items. In conjunction items, a familiar actor performed a familiar action that had actually been performed by someone else during encoding. Participants performed well at picking out the new and old events, but had more difficulty distinguishing between the conjunction events. Younger adults were significantly worse at recognizing the conjunction items when the age of the actor was different from encoding to retrieval. This study supports the hypothesis that people are better able to recognize and distinguish others within a similar age range compared to people outside that range.

This study provides evidence for an age bias in face recognition. Younger adults viewed short video clips of young actors or of actors over the age of 60 performing everyday actions. One week later, participants were tested on their memory for these events. Recognition event types included same, completely new, and conjunction items. In conjunction items, a familiar actor performed a familiar action that had actually been performed by someone else during encoding. Participants performed well at picking out the new and old events, but had more difficulty distinguishing between the conjunction events. Younger adults were significantly worse at recognizing the conjunction items when the age of the actor was different from encoding to retrieval. This study supports the hypothesis that people are better able to recognize and distinguish others within a similar age range compared to people outside that range.