Download or read book Shape and Size Discrimination in Octopus the Effects of Pretaining Along Different Dimensions written by N. S. Sutherland and published by . This book was released on 1963 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has been suggested that discrimination learning involves two processes. Animals learn first to switch-in a stimulus-analysing mechanism that yields different outputs for the discriminanda and, secondly, they learn to attach the correct responses to those outputs. This hypothesis predicts that training an animal to respond to one cue should make it more difficult for it to learn to respond to a second type of cue. Previous experiments have shown that when animals trained to respond to one cue are subsequently presented with a problem that can be solved in terms of that cue or in terms of a second cue they do learn something about the second cue. The crucial question for the model proposed is not whether, under these conditions, animals learn something about a second cue, but whether they learn as much as animals not previously trained to respond to the first cue. The present experiment attempts to answer this question. Sixteen octopuses were trained and tested in three stages. In Stage I, one group learned a size discrimination, the other group learned a shape discrimination. In Stage II, all animals learned a new problem. This problem was the same for both groups and could be solved in terms of shape or size differences or both. In Stage III, transfer tests were given with the same shapes as those used in Stage II but no differences in size were present. (Author).
Download or read book The Visual Discrimination of Shape by Octopus the Effects of Stimulus Size written by N. S. Sutherland and published by . This book was released on 1943 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Octopuses were trained in a successive situation to discriminate between vertical and horizontal rectangles: Group S was trained with rectangles of side length 5 x I cm., Group M with 10 x 2 cm. rectangles, and Group L with 20 x 4 cm. rectangles. The larger the shapes used, the more readily were they discriminated, both in terms of speed of learning and of the asymptote of performance. After training, each group was given transfer tests with the two pairs of rectangles not used in training and with two further pairs of 2.5 x 0.5 cm. and 40 x 8 cm. The results can be summarized in three generalizations: (1) When the size of a shape is changed, performance is worse than on the original training shape. (2) The bigger the change in proportionate size, the less transfer is shown. (3) For corresponding changes of proportionate size, there is better transfer to larger shapes than to smaller. These generalizations are supported by data from earlier experiments on the question of transfer to different sized shapes: some of these data were reworked and are presented in detail here. The theoretical implications of the results are discussed. (Author).
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965-10 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanisms of Animal Discrimination Learning written by N. S. Sutherland and published by Academic Press. This book was released on 2013-10-22 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanisms of Animal Discrimination Learning provides a review of the field of animal discrimination learning, with discussions into other areas such as generalization, partial reinforcement, and some aspects of comparative psychology. This book elaborates the origins of continuity-noncontinuity controversy, analysis of attentional learning, Lashley and Wade's account of generalization, and evidence for a two-process analysis of the ORE. The reversal and nonreversal shifts, response unit hypothesis, inconsistent reinforcement and extinction of choice behavior, and aims and problems of comparative psychology are likewise described This text likewise covers the Zeaman and House model, Lovejoy's Model III, determinants of generalization gradients, cognitive dissonance hypothesis, and theoretical relevance of comparative psychology. This publication is a good source for biologists and researchers concerned with animal discrimination learning.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Discrimination Process and Development written by Brian J. Fellows and published by Elsevier. This book was released on 2013-10-22 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Discrimination Process and Development, Volume 5 covers the fields of behavioral theory and experimental child psychology. This book aims to develop the theory of the discrimination process and relate this theory to certain features of the perceptual and cognitive development of the child. Organized into 21 chapters, this volume starts with a discussion of discrimination process whereby an organism responds to differences between stimuli. This text then discusses the classical discrimination experiment whereby it employs two discriminative stimuli, one of which is positive and the other negative. Other chapters consider the developmental aspects of the discrimination process. The final chapter deals with the hypothesis analysis of matching performances. This book is intended to be suitable for psychology students who are looking for an area of research less restricted than conventional learning theory, and more significant to pressing practical problems. Child psychologists and experimentalists will also find this book useful.
Download or read book Physiology of Molluscs written by Saber Saleuddin and published by CRC Press. This book was released on 2017-07-14 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physiology of Molluscs: A Collection of Selected Reviews is an informative two-volume sent that brings together some of the most important recent and unique developments in molluscan physiology. Volume One focuses on shell structure, mineralization, the dynamics of calcium transport, shell drilling, byssus proteins, locomotion, and reproduction. Volume Two includes reviews on the neural mechanisms of learning, reproductive behavior, responses to environmental stress and hormones, and neurotransmitters. With the rapid development of cutting-edge proteomic, molecular biological, and cellular imaging techniques, our understanding of molluscan physiology, specifically in the areas of neurobiology, reproductive biology, and shell formation, has increased exponentially over the last several years. With contributions from some of the world’s leading experts in the field of molluscan physiology, this valuable two-volume set fills this void and will serve as an important resource for researchers, professors, and students. Chapters report on a variety of recent developments and new understanding, including • biology of byssus threads • physiology of reproduction in cephalopods • learning and memory of molluscs • endocrine disruption in molluscs • nautilus biology and behavior • cephalopod locomotion • neuronal circuitry in molluscs • reproductive endocrinology • bioactive peptides in molluscs The reviews in these two volumes will make a significant contribution to our understanding not only of molluscan physiology but also the physiology of animals in general.
Download or read book Octopus written by M. J. Wells and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: between the organ systems of cephalopods and those of less ambitious molluscs. Octopus does, as we would predict, live close to the limits set by its own physiology. The circulation, to take one example, is barely adequate for such an active animal, mainly because of the absence of any system for pack aging the blood pigment; haemocyanin in solution is a poor oxygen carrier. Cephalopod blood can transport less than 5 millilitres of oxygen per 100 ml of blood (compared with about 15 vol% in fish) and the whole supercharged system of triple hearts, high blood pressure and pulsating blood vessels succeeds only in returning blood that retains less than 30% of its dissolved oxygen by the time it reaches the gills. This at rest; the effect of exercise is immediate and surprisingly long lasting even in octopuses as small as 300 g, which must very swiftly run into oxygen debt when they flee from predators or pursue their prey (Sections 3.2.2, 3.2.4). Digestion, too would seem to be limiting. As with other molluscs, digestion in Octopus is based on secretion absorption cycles by a massive diverticulum of the gut, an adequate system in a less hectic past, but scarcely appropriate in a predator that must be an opportunist in the matter of feeding. Octopus feeds mainly at night, and spends a great deal of every day sitting at home.
Download or read book Cephalopod Behaviour written by Roger T. Hanlon and published by Cambridge University Press. This book was released on 2018-03-22 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: With their large brains, elaborate sense organs and complex behaviour, cephalopods are among the world's most highly evolved invertebrates. This second edition summarises the wealth of exciting new research data stemming from over five hundred papers published since the first volume appeared. It adopts a comparative approach to causation, function, development and evolution as it explores cephalopod behaviour in natural habitats and the laboratory. Extensive colour and black-and-white photography illustrates various aspects of cephalopod behaviour to complement the scientific analysis. Covering the major octopus, squid and cuttlefish species, as well as the shelled Nautilus, this is an essential resource for undergraduate and advanced students of animal behaviour, as well as researchers new to cephalopods, in fields such as neuroscience and conservation biology. By highlighting the gaps in current knowledge, the text looks to inform and to stimulate further study of these enigmatic and beautiful animals.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1965 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Invertebrate Learning written by W. C. Corning and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Learning and Cognitive Processes Volume 2 written by William Estes and published by Psychology Press. This book was released on 2014-06-20 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1975, Volume 2 of this Handbook looks at areas traditionally associated with learning theory such as conditioning, discrimination and behavior theory. It deals with concepts and theories growing principally out of laboratory studies of conditioning and learning. The intention was to treat mechanisms, processes, and principles of some generality – applicable at least to all vertebrates. It was becoming well understood that detailed interpretations of particular behaviors required the authors to take account of the way general principles operate in the context of species-specific behavioral organizations and developmental histories; but detailed consideration of just how these interpretations were accomplished for different animal forms was another enterprise. Here the authors limit their task to abstracting from the enormous literature facts and ideas which seemed general enough to be of interest and perhaps utility to investigators in other disciplines at the time. Volume 1 presented an overview of the field and introduced the principal theoretical and methodological issues that persistently recurred in the expanded treatments of specific research areas that comprise the later volumes. Volume 3 looks at human learning and motivation, while the last 3 volumes range over the many active lines of research identified with human cognitive processes at the time.
Download or read book Advances in the Study of Behavior written by and published by Academic Press. This book was released on 1995-07-27 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the Study of Behavior continues to serve scientists across a wide spectrum of disciplines. Focusing on new theories and research developments with respect to behavioral ecology, evolutionary biology, and comparative psychology, these volumes serve to foster cooperation and communication in these diverse fields.
Download or read book Handbook of Learning and Cognitive Processes written by W. Estes and published by Psychology Press. This book was released on 2022-07-30 with total page 2214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is it possible at present to identify a core cluster of theoretical ideas, concepts, and methods with which everyone working in the area of learning and cognition needs to be familiar? Would it be possible to make explicit the relationships that we feel do or must exist among the various subspecialties, ranging from conditioning through perceptual learning and memory to psycholinguistics, and to present these in a sufficiently organized way to help specialists and non-specialists alike in relating particular lines of research to the broader spectrum of activity? These questions were posed to a substantial number of investigators who were most active in developing the ideas and doing the research in the early 1970s. Originally published between 1975 and 1978, their response constitutes this 6-volume Handbook of Learning and Cognitive Processes. The volumes survey the research and theory on learning and cognitive processes that were rapidly developing at the time. The primary orientation was to concentrate on research and models aimed toward the development of general cognitive theory. They were up-to-date with regard to theoretical and technical developments, and sufficiently self-contained to be readable by anyone with a reasonable scientific background, regardless of their acquaintance with the technical jargon of particular specialties. Previously out of print, the Handbook is now available again, as a set or as individual volumes.
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1965 with total page 1316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparative Physiology and Evolution of Vision in Invertebrates written by Hansjochem Autrum and published by Springer. This book was released on 1979 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the comparative physiology of photoreception by the Protista and the invertebrates two aspects are emphasized: (1) the diversity of visual processes in these groups and (2) their bearing upon general mechanisms of photoreception. Invertebrates have evolved a far greater variety of adaptations than vertebrates modifications aiding survival in the remarkably different biotopes they occupy. The number of species in itself suggests this multiformity; each of them has peculiarities of its own, in morphology as well as in physiology and behavior. But these special adaptations are variations on a few great themes. Although the catalogue of invertebrate species is immense, the literature concerning them nearly rivals it in extent-even if one considers only that fraction dealing with visual physiology. Taxonomy proceeds by grouping the species, categorizing them in genera, families, orders, and progressively larger units. Similarly, comparative physiology aims at an analogous, more or less compre hensive, classification. This Part A of Volume VII/6, like Part B that follows it, emphasizes the broad questions that concern groups larger than the individual species; in some cases these questions have general applicability. The middle course between approaches that are too specialized and those that are too general is often elusive, but here we attempt to follow it. The vast number of special adaptations-probably, as we have said, as large as the number of species-is beyond the range even of a handbook.
Download or read book Animal Discrimination Learning written by Richard M. Gilbert and published by Academic Press. This book was released on 1969 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
