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Ultraviolet radiation and blue light from photofloods in television studios and theaters.

The intensities and spectra of ultraviolet and visible radiation were determined for different types of photofloods (575 to 5000 W) commonly used in television studios and theaters. The measurements were taken with a spectroradiometer at distances of 2.25, 4.5, or 10 m from the lamps. The measured spectral irradiance was weighted against biological hazard functions to determine the potential hazards. The results indicate that in television work, direct viewing of the light source should be limited to a few minutes per day to avoid potential photochemical injury to the retina. In addition, the luminances of the photofloods were calculated. Because the luminance of most of the tested photofloods was several orders of magnitude above the luminance level considered comfortable to the eyes, they can cause discomfort glare.

Eye↗

Network television news stories about suicide and short-term changes in total U.S. suicides.

A number of recent reports have documented a positive association between mass media news stories about suicide and subsequent short-term increases in total U.S. suicides. However, the estimated magnitude of this association varies considerably across these published reports and tends to be smaller in the more comprehensive studies. A detailed investigation of all network television suicide news stories broadcast between January 1, 1973, and December 31, 1984, was undertaken to resolve this inconsistency. The information about television coverage of suicides was more comprehensive than in previous studies. The analyses show that there was no reliable association between news stories and suicides among adults at any time over the 12 years investigated. A reliable association existed among teenagers between 1973 and 1980. This association reversed in 1981, however, and the relative risk of suicide associated with network news stories was consistently less than 1.0 through the end of the study period.

Adolescent↗

Color television in gastrointestinal endoscopy.

Endoscopic color television is a practical method of recording gastrointestinal pathology and procedures. Nevertheless, a careful MEDLARS review of the medical literature failed to reveal a mention of this method during the past ten years. The endoscopic procedure can be recorded to illustrate many features not possible with still pictures. While particularly useful in teaching endoscopy, it is also useful for demonstrating pathologic findings to interested physicians, patients, and relatives. Television recording requires meticulous attention to details of lighting, focus, and cleansing of areas to be photographed and of the instrument objective, but results may well be superior to other means of photography in gastrointestinal endoscopy.

Color↗

A content analysis of television advertising for the Massachusetts Tobacco Control Program media campaign, 1993-1996.

Television advertising for the Massachusetts Tobacco Control Program (MTCP) was launched in 1993. The campaign's first three years were examined against an analytical framework based in behavioral change and communications theory. The most common focus in the 49 advertisements was tobacco industry practices, followed by health consequences for smokers and smoking prevention. Only one smoking prevention advertisement was targeted to children younger that age 13. Only four advertisements mentioned policy actions to reduce youth access or curtail exposure to environmental tobacco smoke. Only two advertisements listed the telephone number for the MTCP's smoking cessation program. The television campaign was uncoordinated with the MTCP's community-level programs.

Adolescent↗

Television watching and the risk of incident probable posttraumatic stress disorder: a prospective evaluation.

The relation between viewing television coverage of a mass disaster and the development of posttraumatic stress disorder (PTSD) is poorly understood. A cohort of New Yorkers without baseline probable PTSD (N=1787) was assessed 1 year following the September 11, 2001, attacks. The primary outcome was new-onset probable PTSD assessed through a validated scale, and the primary exposure was number of hours of September 11 anniversary news coverage viewed. A total of 99 (5.6%) of participants had developed probable PTSD at the 1-year follow-up. Watching 12 or more hours of September 11 attack anniversary news coverage was associated with a 3.4-fold increased risk of new-onset probable PTSD (p=0.004). Exposure to television coverage of the September 11 anniversary was associated with new-onset probable PTSD among a cohort of New Yorkers with no probable PTSD at baseline.

Adult↗

Home telecare system using cable television plants--an experimental field trial.

To solve the inconvenience of routine transportation of chronically ill and handicapped patients, this paper proposes a platform based on a hybrid fiber coaxial (HFC) network in Taiwan designed to make a home telecare system feasible. The aim of this home telecare system is to combine biomedical data, including three-channel electrocardiogram (ECG) and blood pressure (BP), video, and audio into a National Television Standard Committee (NTSC) channel for communication between the patient and healthcare provider. Digitized biomedical data and output from medical devices can be further modulated to a second audio program (SAP) subchannel which can be used for second-language audio in NTSC television signals. For long-distance transmission, we translate the digital biomedical data into the frequency domain using frequency shift key (FSK) technology and insert this signal into an SAP band. The whole system has been implemented and tested. The results obtained using this system clearly demonstrated that real-time video, audio, and biomedical data transmission are very clear with a carrier-to-noise ratio up to 43 dB.

Blood Pressure↗

The relations of early television viewing to school readiness and vocabulary of children from low-income families: the early window project.

For two cohorts of children from low- to moderate-income families, time-use diaries of television viewing were collected over 3 years (from ages 2-5 and 4-7 years, respectively), and tests of reading, math, receptive vocabulary, and school readiness were administered annually. Relations between viewing and performance were tested in path analyses with controls for home environment quality and primary language (English or Spanish). Viewing child-audience informative programs between ages 2 and 3 predicted high subsequent performance on all four measures of academic skills. For both cohorts, frequent viewers of general-audience programs performed more poorly on subsequent tests than did infrequent viewers of such programs. Children's skills also predicted later viewing, supporting a bidirectional model. Children with good skills at age 5 selected more child-audience informative programs and fewer cartoons in their early elementary years. Children with lower skills at age 3 shifted to viewing more general-audience programs by ages 4 and 5. The results affirm the conclusion that the relations of television viewed to early academic skills depend primarily on the content of the programs viewed.

Child↗

Mixed messages on tobacco: comparative exposure to public health, tobacco company- and pharmaceutical company-sponsored tobacco-related television campaigns in the United States, 1999-2003.

AIMS: To describe and compare the extent of exposure among youth and adults to antitobacco advertising funded by tobacco control agencies, and to smoking-related advertising from tobacco and pharmaceutical companies. DESIGN: Archival records of television advertising exposures from Nielsen Media Research for the largest 75 media markets in the United States from 1999 to 2003. MEASUREMENTS: Mean monthly advertising exposures for households with televisions and adolescents aged 12-17 years for: state tobacco control programs; the national American Legacy Foundation (Legacy) program; tobacco company advertising for youth smoking prevention, parent advertising and corporate image; pharmaceutical company advertising for nicotine replacement therapy and Zyban; and other miscellaneous tobacco-related advertising. FINDINGS: Combined tobacco company youth/parent advertising exposures matched those for combined State/Legacy campaigns (4.56 advertisements/month versus 4.97 advertisements/month among households; 3.05 advertisements/month versus 3.38 advertisements/month among adolescents). Tobacco company corporate image advertising averaged 3.25 advertisements/month among households and 0.73 advertisements/month among adolescents. Tobacco company advertising exceeded public health-sponsored advertising by a factor of 1.57-1, and among youth by 1.11-1. Pharmaceutical companies were the largest sponsor of tobacco-related advertising for households (10.37 advertisements/month) and provided significant exposure among adolescents (2.61 advertisements/month). CONCLUSIONS: This is the first study to demonstrate systematically that public health-sponsored antitobacco campaigns in the United States are matched or exceeded by tobacco company advertising, as well as pharmaceutical cessation product advertising. Research is needed to determine whether such advertising may dilute or undermine the established benefits of tobacco control-sponsored campaigns.

Adolescent↗

Immediate and delayed recall of information presented in a live and a televised lecture.

This paper describes a study investigating medical students' responses and levels of recall from a live and televised version of the same lecture. Although no difference in immediate recall was found, a significant difference was found one week later. The groups who had seen the live lecture were able to recall significantly more from the lecture than those who had seen the televised transmission. No differences were observed in the amount and type of note-taking and in the levels of attention and interest of the two groups of students. Some possible reasons for this significant effect on delayed recall are discussed and directions for future work are identified.

Attention↗

The extent and nature of televised food advertising to New Zealand children and adolescents.

OBJECTIVE: There has been international concern over the balance of television advertising for healthy and less-healthy foods to which children and adolescents are exposed. This study examined the extent to which 9-17 year old New Zealanders were exposed to advertising for different food groups over a year and compared New Zealand rates of advertising with a 13-country study. METHOD: 'People meter' data collected over three months--May and September 1995 and February 1996--and food advertising from a sample week of television during hours when children were likely to be watching were also examined. Comparison was made with a similar 1989 South Australian study and an international study covering 13 countries. RESULTS: Both the exposure estimated for a year and the opportunities for exposure during the sample week were highest for sweet snacks, drinks, fast food/takeaways and breakfast cereals. There were very low levels for fruit, vegetables, and meat/fish/eggs. Water was not advertised in any sample month. Comparisons with the 13-country study showed New Zealand had the third-highest rate of food advertising, the highest rate of confectionery and drinks advertising, and the second-highest rate of restaurant advertising which included fast food restaurants. CONCLUSION: Current patterns of food advertising pose a conflict of interest between public health and commercial interests. Regulation of food advertising may be needed to address this in order to improve future health.

Adolescent↗

Lessons from television: children's word learning when viewing.

The study investigated if preschoolers can learn novel words when viewing television and if the learning is influenced by age or type of word. 61 preschoolers, ages 3 and 5, were assigned to either an experimental or control group. They viewed a 15-min television program, featuring 20 different novel words, 5 each in the 4 categories of object, action, attribute, and affective-state words. Comprehension was tested before and after viewing. The experimental group performed better than the controls for object, action, and attribute words. 5-year-olds were more accurate than 3-year-olds and gained relatively more from the experimental condition. The easiest words to learn were object and attribute words. The results are relevant for studies of media effects and accounts of preschoolers' "fast mapping" of new words.

Child, Preschool↗

Imitation of televised models by infants.

Studies indicate that infants in our culture are exposed to significant amounts of TV, often as a baby-sitting strategy by busy caretakers. The question arises whether TV viewing merely presents infants with a salient collection of moving patterns or whether they will readily pick up information depicted in this 2-D representation and incorporate it into their own behavior. Can infants "understand" the content of television enough to govern their real-world behavior accordingly? One way to explore this question is to present a model via television for infants to imitate. Infants' ability to imitate TV models was explored at 2 ages, 14 and 24 months, under conditions of immediate and deferred imitation. In deferred imitation, infants were exposed to a TV depiction of an adult manipulating a novel toy in a particular way but were not presented with the real toy until the next day. The results showed significant imitation at both ages, and furthermore showed that even the youngest group imitated after the 24-hour delay. The finding of deferred imitation of TV models has social and policy implications, because it suggests that TV viewing in the home could potentially affect infant behavior and development more than heretofore contemplated. The results also add to a growing body of literature on prelinguistic representational capacities. They do so in the dual sense of showing that infants can relate 2-D representations to their own actions on real objects in 3-D space, and moreover that the information picked up through TV can be internally represented over lengthy delays before it is used to guide the real-world action.

Child, Preschool↗

Television and families: what do young children watch with their parents?

A sample of 271 3- and 5-year-olds and their families participated in a 2-year longitudinal study of television viewing patterns. 5 1-week diaries for all family members were collected at 6-month intervals. Programs were categorized as: (1) child informative, (2) child entertainment, (3) news and informative, (4) sports, (5) comedy, (6) drama, (7) action-adventure, and (8) variety-game. The majority of child programs were viewed without parents, while the majority of adult programs were watched with parents. Coviewing patterns of adult programs were predicted from parents' individual viewing habits, but not from the child's. Coviewing declined with age. Parental encouragement and regulation of viewing were orthogonal. Children whose parents encouraged viewing watched more child informative programming; children of restrictive parents watched less entertainment programming. Encouraging parents coviewed more than nonencouraging parents. Results support the assertion that parental viewing preferences, habits, and orientations toward television influence children's viewing, both with and without parents.

Child, Preschool↗

Violence and sex in television programs do not sell products in advertisements.

Adults (N = 336) 18 to 54 years old watched a television program containing violence, sex, both violence and sex, or no violence and sex. Programs were shown in a comfortable room containing padded chairs and tasty snacks. Each program contained the same 12 ads. Embedding an ad in a program containing violence or sex reduced (a) viewers' likelihood of remembering the advertised brand, (b) their interest in buying that brand, and (c) their likelihood of selecting a coupon for that brand. These effects occurred for males and females of all ages, regardless of whether they liked programs containing violence and sex. These results show that violence and sex in television programs do not sell products in advertisements.

Adolescent↗

The relationship between viewing US-produced television programs and intentions to drink alcohol among a group of Norwegian adolescents.

The aim of this study was to examine the influence of exposure to US-produced television programs and family rules prohibiting alcohol use on the development of normative beliefs, expectancies, and intentions to drink alcohol in the next 12 months among a group of Norwegian adolescents who reported that they had not previously consumed alcohol. Data were collected via a survey administered to 622 eighth and ninth graders enrolled at ten junior highs in southeastern Norway. To examine these relationships we tested the fit of a structural equation model which was based on the Theory of Planned Behavior (Ajzen, 1988). Data from the non-drinkers (n= 392, 63% of the respondents) were used. To control for the influence of peer drinking on behavioral intentions, our model was tested under two group conditions: (1) those subjects reporting that they have no friends who drink alcohol and (2) those subjects reporting that they have one or more friends who drink. The findings indicate that the influence of TV exposure was a significant predictor (directly) of normative beliefs, expectancies (indirectly) and intentions to drink (both directly and indirectly) only for those subjects who reported having no friends who drink. For the group with non-drinking friends, family rules constrain intentions only indirectly by influencing normative beliefs. For those with friends who drink, however, family rules have a direct (inverse) effect on intentions. It is concluded that exposure to US-produced television programs functions as a limited knowledge source only for those subjects who had little or no personal experience with alcohol while the presence of family rules have limited impact on behavioral intentions.

Adolescent↗

Simplified closed circuit television magnifier for the partially sighted.

Although the use of closed circuit television (CCTV) magnifiers is now well established, the instruments tend to be bulky, complex and expensive. A magnifier is described which consists of a miniature TV camera used as a hand-held scanner, which can be plugged into a wide variety of monitors and television sets.

Blindness↗

Photosensitive seizures provoked while viewing "pocket monsters," a made-for-television animation program in Japan.

PURPOSE: To describe the recent epidemic of photosensitive seizure that occurred in relation to an episode of the television animation program "Pocket Monsters," we report four patients who experienced seizures while watching the episode in question. We also report some technical aspects of the program episode. METHODS: We investigated the clinical symptoms of the four patients and performed routine EEGs with intermittent photic stimulation (IPS). If IPS provoked no photoparoxysmal response (PPR) during the routine EEG examination, a second EEG was performed with the photic stimulator placed 10 cm from the patient's eyes. In addition, we reviewed the "Pocket Monsters" episode, focusing our attention on the visual techniques used with reference to the Independent Television Commission (ITC) guidelines. RESULTS: One patient who had myoclonic jerks before the convulsion in question was diagnosed as having juvenile myoclonic epilepsy, and the diagnosis of another patient was pure photosensitive epilepsy. The remaining two patients had their first seizures, which could be occasional seizures, and we therefore could not reach a diagnosis of epilepsy. In our four patients, only one showed PPR on the routine EEG. Two patients revealed PPR on the second EEG, and the remaining patient showed no PPR. Rapid changes in color are believed to be responsible for the photosensitive seizures because all four patients had seizures at around 18:50, when seconds of deep red and bright blue flashes, alternating at a frequency of 12 Hz, were shown. CONCLUSIONS: Regulations for technical aspects of children's programming, including the use of colors, are urgently needed in Japan to prevent a repeated incident. In addition, the IPS procedure needs to be standardized, especially for patients who are suspected to have photosensitivity.

Adolescent↗

Television in the hospital: programming patients' delusions.

Systematic collection of art products from 55 schizophrenic patients provided unexpected documentation of the impact of television on delusion-formation. Patients' drawings and descriptions demonstrate the ease with which they incorporate TV program material in their psychotic experience. It is suggested that clinicians consider television viewing a relevant variable in the design of treatment programs.

Acute Disease↗