Maternal Depression and Family Media Use: A Questionnaire and Diary Analysis

We describe the association between postpartum depression and the quantity and content of infant media use. Households with depressed mothers viewed twice as much television as households with non-depressed mothers did, and depressed mothers appeared to derive comparatively greater pleasure from television viewing. Maternal depression was associated with an increased exposure to child-directed content by 6–9-month-old infants, although it was not associated with an increased exposure to adult-directed programming. Depressed mothers also reported being less likely to sit and talk with their children during television use or to consult outside sources of information about media. This increase in television exposure without corresponding parental involvement could negatively affect developmental outcomes.     

A Visual Representation and the Control of Manual Aiming Movements

Three experiments were conducted to determine if a representation of the movement environment is functional in the organization and control of limb movements, when direct visual contact with the environment is prevented. In Experiment 1, a visual rearrangement procedure was employed to show that a representation of the environment that provides inaccurate information about the spatial location of a target can disrupt manual target aiming. In Experiment 2, we demonstrated that spatial information about the position of a target can be destroyed by a visual pattern mask, supporting our claim that the representation is visual. A target-cuing procedure was used in Experiment 3 to show that representation of target position can be useful for premovement organization in a targetaiming task. Together our findings suggest that a short-lived visual representation of the movement environment may serve a useful role in the organization and control of limb movements.     

Crossmodal identification

Everyday experience involves the continuous integration of information from multiple sensory inputs. Such crossmodal interactions are advantageous since the combined action of different sensory cues can provide information unavailable from their individual operation, reducing perceptual ambiguity and enhancing responsiveness. The behavioural consequences of such multimodal processes and their putative neural mechanisms have been investigated extensively with respect to orienting behaviour and, to a lesser extent, the crossmodal coordination of spatial attention. These operations are concerned mainly with the determination of stimulus location. However, information from different sensory streams can also be combined to assist stimulus identification. Psychophysical and physiological data indicate that these two crossmodal processes are subject to different temporal and spatial constraints both at the behavioural and neuronal level and involve the participation of distinct neural substrates. Here we review the evidence for such a dissociation and discuss recent neurophysiological, neuroanatomical and neuroimaging findings that shed light on the mechanisms underlying crossmodal identification, with specific reference to audio-visual speech perception.     

'The World is an Undutiful Boy!': Sayyid Qutb's American experience

The article analyzes the images of America put forward by Sayyid Qutb (1906-1966), the prominent Egyptian ideologue of Islamism, during and immediately following his study mission to the US between 1948 and 1950. It argues that Qutb's understanding of America was conditioned by his tendency, already explicit in his 1938 critique of Taha Husayn's Mustaqbal al-Thaqafa fi Misr, to posit a cultural divide between a 'spiritual East' and a 'materialist West'. In addition to Qutb's articles and letters on the subject, many of which were published in al-Risala, the article draws upon hitherto untapped materials uncovered by the author at the University of Northern Colorado, where Qutb studied in 1949.     

Persistence during and resurgence following noncontingent reinforcement implemented with and without extinction

Noncontingent reinforcement (NCR) is typically implemented with extinction (EXT) for destructive behavior reinforced by social consequences and without EXT for destructive behavior reinforced by sensory consequences. Behavioral momentum theory (BMT) predicts that responding will be more persistent, and treatment relapse in the form of response resurgence more likely, when NCR is implemented without EXT due to the greater overall rate of reinforcement associated with this intervention. We used an analogue arrangement to test these predictions of BMT by comparing NCR implemented with and without EXT. For two of three participants, we observed more immediate reductions in responding during NCR without EXT. However, for all participants, NCR without EXT produced greater resurgence than NCR with EXT when we discontinued all reinforcers during an EXT Only phase, although there was variability in response patterns across and within participants. Implications for treatment of destructive behavior using NCR are discussed.     

The study of socioethical issues in systems biology

Systems biology is the rapidly growing and heavily funded successor science to genomics. Its mission is to integrate extensive bodies of molecular data into a detailed mathematical understanding of all life processes, with an ultimate view to their prediction and control. Despite its high profile and widespread practice, there has so far been almost no bioethical attention paid to systems biology and its potential social consequences. We outline some of systems biology's most important socioethical issues by contrasting the concept of systems as dynamic processes against the common static interpretation of genomes. New issues arise around systems biology's capacities for in silico testing, changing cultural understandings of life, synthetic biology, and commercialization. We advocate an interdisciplinary and interactive approach that integrates social and philosophical analysis and engages closely with the science. Overall, we argue that systems biology socioethics could stimulate new ways of thinking about socioethical studies of life sciences.     

Young Adults' Perceptions and Memories of a Televised Woman Hero

One hundred and thirty-nine young adults viewed one of three episodes of a television program about a female action hero titled Xena: Warrior Princess. Programs varied in portrayals of Xena's shadow, the dark but also life-preserving facet of the personality. Participants of both genders who had higher levels of traditionally masculine personality characteristics were most likely to perceive Xena as a role model. Men were more likely than women to perceive Xena as a role model when she was portrayed with very little male shadow. Story themes describing women's heroic roles involved using your mind, not the sword, as well as the value of compassion during conflicts, themes that are in keeping with traditional feminine values. The results suggest that viewer acceptance of heroic qualities in women depends on viewer characteristics as well as program themes that include valued feminine qualities. Implications for portrayals of heroic women characters are discussed.     

The selective use of sound effects and visual inserts for children's television story comprehension

Sound effects were inserted in a television program in order to guide children's selective attention to, and comprehension of, significant story content. Sixty-four children, equally distributed by sex and by kindergarten and fifth grades, were randomly assigned to one of four treatment conditions that crossed two levels of sound effects with two levels of visual inserts. One-s sound effects either preceded or did not precede three key program transitions. The visual insert conditions provided additional information at these program points whereas the no visual insert conditions did not. Visual attention was videotaped during each child's individual viewing session. After viewing, each child answered a 22-item multiple-choice recognition test of inferential, central, and incedental content. As predicted, sound effects increased selective attention and inferential recognition, particularly for the youngest children who have the greatest difficulty understanding televised stories.