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This study assesses the relative strengths and weaknesses of a hotel, Holiday Inn, as viewed by two customer segments: business travelers and vacationers. The evaluation is based on the analytical framework of importance-performance analysis using 28 hotel attributes. Despite some differences, there are a number of similarities between the two segments in terms of the attributes they rely on when choosing a hotel and how they evaluate Holiday Inn on these attributes. These insights are important to the management in designing pointed strategies to better serve the needs of their guests.

The study proposes and tests a model of hotel choice behavior based on the economics of information theory which incorporates relational and core service experiences as well as search attributes. The model expands the domain of inquiry beyond the initial level attributes to the higher order latent construct and composite levels. Results suggest that hotel choice behavior of male and female guests can be represented as a global construct with three viable components. Implications of the results are discussed.

京都大学 / 0048 / 新制・課程博士 / 博士(情報学) / 甲第20024号 / 情博第619号 / 新制||情||108(附属図書館) / 33120 / 京都大学大学院情報学研究科知能情報学専攻 / (主査)教授 松山 隆司, 教授 熊田 孝恒, 准教授 川嶋 宏彰 / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM

京都大学 / 0048 / 新制・課程博士 / 博士(情報学) / 甲第20735号 / 情博第649号 / 新制||情||112(附属図書館) / 京都大学大学院情報学研究科知能情報学専攻 / (主査)准教授 川嶋 宏彰, 教授 河原 達也, 教授 熊田 孝恒 / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM

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Master of Science / Department of Psychology / Kimberly Kirkpatrick / Several studies have examined timing and impulsive choice behavior in spontaneously hypertensive rats (SHR) as a possible pre-clinical model for Attention Deficit Hyperactivity Disorder (ADHD). However, the strain has not been specifically selected for the traits of ADHD and as a result their appropriateness as a model has been questioned. This study investigated whether SHR would exhibit timing deficits, poor reward processing and impulsive behavior in comparison to the Wistar Kyoto (WKY) control strain in a discrete-trial choice task. In addition, as a first approach to find another potential animal model of ADHD, we evaluated a strain that has shown high levels of impulsivity, the Lewis (LEW) rats and compared them with the Wistar (WIS) rats. In the first phase of the experiment, rats could chose a lever associated with a Smaller-sooner (SS) reward of 1 pellet delivered after 10 s and a Larger-later (LL) reward of 2 pellets delivered after 30 s. Subsequently, the rats were exposed to different phases, where the reward on the LL choice was increased to 3 and 4 pellets and where the delay to the SS choice was increased to 15 and 20 s. The SHR and WKY strains did not differ in their timing or choice behavior. In comparison to WIS, LEW showed timing deficits in both manipulations and deficits in choice behavior in the delay manipulation, indicating deficits in time processing. Individual differences among the rat within a strain accounted a significant proportion of the total variance and contributed more variance than the strain of the rat. These results indicate that the SHR and LEW strains are not sufficiently homogeneous with respect to impulsive choice behavior to be considered as viable models for impulse control disorders such as ADHD.

O comportamento de escolha é entendido como a seleção de uma entre duas ou mais alternativas disponíveis, diferente da preferência, que está relacionada ao tempo despendido respondendo a uma dessas alternativas. Em pesquisas com não humanos, observa-se que os sujeitos escolhem com maior frequência as alternativas nas quais o reforço estará disponível de forma imediata, em pequena quantidade, em comparação com a alternativa na qual o reforço estará disponível somente depois que o animal esperar um tempo determinado (atraso), mas em maior quantidade. Apesar da literatura apresentar dados sobre a influência da restrição alimentar e do sexo do animal em tarefas de aprendizagem, é importante aprofundar a investigação desses aspectos em tarefas de escolha. O objetivo desta pesquisa foi comparar o desempenho de ratos Sprague Dawley (machos e fêmeas) com história de restrição alimentar e ratos controle (com comida ad libitum), em uma tarefa de escolha, em que as alternativas variavam em relação ao atraso para ter acesso à comida e à quantidade de comida disponível. Foram utilizados 24 ratos (12 machos), de linhagem Sprague-Dawley, divididos em dois grupos. O Grupo Controle (C) recebeu dieta ad lib., enquanto o Grupo Restrição (R) teve sua dieta restrita a 80% da dieta do grupo controle. Aos 70 dias de idade, houve uma subdivisão dos grupos: metade dos animais do Grupo C formou o Grupo Controle-Restrito (CR 80% da dieta), e a outra metade o Controle-Controle (CC 100% da dieta). No Grupo R, metade dos animais formou o Grupo Restrito-Controle (RC 100% da dieta) e a outra metade, o Grupo Restrito-Restrito (RR 80% da dieta). Na Etapa 1 os animais exploravam labirinto em U em uma sessão de 10 tentativas. Na Etapa 2 foram realizadas 10 sessões de 16 tentativas de escolha forçada, sendo oito no braço direito, onde havia seis pelotas de ração disponíveis após atraso de 15 s (alternativa LL), e oito no braço esquerdo, com três pelotas de ração disponíveis sem atraso (alternativa SS). Na Etapa 3, foram conduzidas 45 sessões com 30 tentativas (10 forçadas e 20 livres), para verificar o padrão de escolha dos animais dos diferentes grupos em função da disponibilidade de reforço em cada alternativa, do atraso em uma das alternativas e do tempo inicial de espera (tempo T). Os animais de todos os grupos apresentaram preferência pela alternativa SS, independente do sexo ou da dieta. Ao comparar a porcentagem de escolhas dos grupos com relação às dietas foram verificadas diferenças no padrão e nas latências médias de escolha. O grupo RR apresentou latências médias de escolha significativamente inferiores às do grupo CC e um estabelecimento mais rápido de preferência pela alternativa SS que o grupo CC. Apesar de não terem sido encontradas diferenças significativas entre machos e fêmeas nos parâmetros analisados (possivelmente em função do n amostral), verificou-se que fêmeas apresentaram latências menores que machos em todos os grupos, além de porcentagens de escolha pela alternativa SS maiores que os machos. São discutidas hipóteses sobre a influência da dieta e da quantidade de alimento disponível em cada alternativa sobre as escolhas dos grupos. Essas hipóteses são também relacionadas a aspectos evolutivos, referentes às funções desempenhadas por machos e fêmeas na natureza. / The behavior of choice is understood as the selection of between two or more alternatives available, different from the preference, which is related to the time spent by responding to one of these alternatives. In researches with non-human animals, it is observed that the subjects choose more frequently the alternatives on which the reinforcement will be available immediately, in small quantity, in comparison with the alternative in which the reinforcement is available only after the animal expects a certain time (delay), but in greater quantity. Although literature present data on the influence of food restriction and the sex of the animal in tasks of learning, it is important to deepen the investigation of these aspects in tasks of choice. The objective of this research was to compare the performance of rats Sprague Dawley (male and female) with a history of food restriction and control rats (with food ad libitum), in a task of choice, in that the alternatives varied in relation to the waiting time for access to food and the quantity of food available. 24 albino rats (12 males), from Sprague-Dawley lineage was used, divided in two groups. The Control Group (C) received diet ad lib., while the group restriction (R) had their diet restricted to 80% of the diet of the control group. At 70 days of age, there was a subdivision of the groups: half of the animals from group C formed the Group Controle-Restrito (CR - 80% of the diet), and the other half the Controle-Controle (CC - 100% of the diet). In Group R, half of the animals formed the Group Restrito-Controle (RC - 100% of the diet) and the other half, the Restrito-Restrito group (RR - 80% of the diet). In Step 1 the animals explored the labyrinth in U in a session of 10 attempts. In Step 2, there were 10 sessions of 16 attempts of forced choice, being 8 in the right arm, where there were six pellets of ration available after delay of 15 s, and eight in the left arm with three pellets of rations without delay. In Step 3, 45 sessions were conducted with 30 attempts (10 forced and 20 free), tarry check the default choice of animals of different groups in relation to the availability of strengthening in each alternative, the delay in one of the alternatives and the initial time wait time (T). Animals of all groups have preference for the SS alternative, independently of sex or diet. Differences were verified in the pattern and average latencies of choices in comparing the percentage of choices of the groups in relation to the diets. The RR group presented significantly lower average latency in comparison to group CC and a faster preference was established for alternative SS than group CC. Even having no significant differences been found between males and females in the scope studied (possibly due to then sampling), it was verified that females present lower latencies that males in all groups, besides the higher percentages for choosing alternative SS in males. Hypotheses are discussed on the influence of the diet and the quantity of food available in each alternative over the group choices. These hypotheses are also related to evolutionary aspects, referent to functions performed by males and females in nature.

Salzinger (1998) define o comportamento verbal como um operante sujeito às conseqüências e discute que o comportamento verbal é parte de uma cadeia de respostas verbais e não verbais, públicas e encobertas, estando intimamente envolvido no manejo de outros comportamentos às vezes como causa, agindo como estímulo discriminativo e outras vezes apresentando o papel de efeito. Nesta encadeamento verbal, é fundamental estudar o papel das regras como estímulos verbais que descrevem contingências de reforçamento de forma completa ou parcial e conseqüências, e controlam a probabilidade de uma resposta. O presente estudo teve como objetivo investigar o efeito de variáveis verbais antecedentes com e sem autoclíticos, conseqüentes com autoclíticos e conseqüentes não verbais, para a instalação e manutenção do comportamento de escolha de alimentos variados para o café da manhã, considerando os diferentes grupos alimentares. Para isto, vinte crianças com faixa etária entre 10 e 12 anos foram organizadas igualmente em cinco Experimentos com arranjos diferentes quanto ao uso de variáveis verbais e não verbais. Na mesa de escolha de alimentos, havia quatro alimentos representantes dos carboidratos, dois das gorduras e quatro das proteínas e era considerada como escolha variada a resposta de escolher ao menos dois representantes dos carboidratos e proteínas e um das gorduras. Foram testadas ao todo dez diferentes variáveis nesse estudo, sendo nove delas verbais e uma não verbal, entre antecedentes e conseqüentes, distribuídas entre os Experimentos de forma a se manter um equilíbrio do número de fases em cada um deles. Houve variáveis antecedentes com variados graus de descrição da resposta que a criança deveria desempenhar, cada uma com autoclíticos diferentes, variáveis aplicadas individualmente e em grupo e uma variável de controle aversivo. Em alguns Experimentos procurou-se inverter as fases com emprego de variável antecedente com as fases que empregaram variável conseqüente, para se estabelecer uma comparação quanto à eficácia das mesmas na instalação e manutenção do comportamento de escolha variada. Os resultados principais indicam maior controle verbal das variáveis verbais conseqüentes com autoclíticos e das variáveis antecedentes com autoclíticos específicos e com descrição da resposta bem detalhada que aumenta a discriminabilidade dos estímulos relacionados à resposta e a probabilidade do fazer. Além da avaliação de que componentes da variável verbal podem melhor funcionar no controle do comportamento não verbal, no estudo fica evidente o importante papel das variáveis sociais na efetividade do controle verbal. Identificou-se especialmente no Experimento 5 que o controle verbal é maior em grupo, tanto no que se refere à mudança de comportamento de todos os participantes, como à manutenção da mesma após a retirada do controle verbal. As discussões gerais sobre os resultados mostram que o comportamento de escolha de alimentos parece ser fortemente instalado ao longo da história, de modo que sua alteração requer variáveis verbais tanto antecedentes como conseqüentes bastante específicas / Salzinger (1998) defines verbal behavior as an operant subject to consequences and argues that verbal behavior is part of a chain of verbal and nonverbal, overt or covert responses, being closely involved in managing other behaviors sometimes as \"cause\", acting as a discriminative stimulus, and other times playing an effect role. In this verbal enchainment, it is of fundamental importance to study the role of rules as verbal stimuli which describe reinforcing contingencies in a complete or partial manner and consequences, and control the likelihood of a response. The objective of this paper was to investigate the effect of antecedent verbal variables with and without autoclytics, consequents with autoclytics and nonverbal consequents, on the onset and maintenance of the behavior to choose varied foods for breakfast, considering the different food groups. To this end, twenty children aged between 10 and 12 were equally divided into five experiments with different arrangements as to the use of verbal and nonverbal variants. On the food choice table, there were four types of foods representing carbohydrates, two for fats and four for proteins, with a varied choice being considered as the response to choose at least two types of carbohydrates and proteins and one of fats. In all, ten different variables were tested in this study, with nine of them being verbal and one nonverbal, between antecedents and consequents, distributed among the experiments so as to maintain a balance of the number of phases in each one of them. There were antecedent variables with various degrees of description of the response the child was supposed to perform, each with different autoclytics, individually- and groupapplied variables and an aversive control variable. In some experiments we tried to reverse the phases using an antecedent variable with the phases which used a consequent variable, in order to establish a comparison as to their effectiveness in the onset and maintenance of the varied choice behavior. The main results indicate greater verbal control of consequent verbal variables with autoclytics and of antecedent variables with specific autoclytics and with detailed description of the response, which increases discriminability of the response-related stimuli and the likelihood of performing it. In addition to the assessment that components of the verbal variable may work better in controlling nonverbal behavior, the study evidences the important role played by social variables in the effectiveness of verbal control. It was identified, especially in experiment 5, that verbal control is higher in group, both regarding the change of behavior by all participants and its maintenance after verbal control was removed. General discussions on the results show that the food choice behavior seems to have been strongly settled along history, so that its alteration requires very specific verbal variables both antecedent and consequent