Gaze alternation in dogs and toddlers in an unsolvable task: evidence of an audience effect

Dogs have been shown to use human-directed gazing behaviour and gaze alternation in numerous contexts; however, it is still unclear whether this behaviour can be considered an intentional and referential communicative act. In the current study, adult dogs and preverbal toddlers were tested using the classic unsolvable task paradigm, but varying the attentional stance of the participating audience (the experimenter and the caregiver). The aims were to assess (1) whether dogs and toddlers would use gaze alternation behaviour in similar manners when the task became unsolvable, and (2) whether both dogs and toddlers would take into account the attentional stance of the audience when initiating a communicative interaction. Results indicated that both toddlers and dogs increased their gaze alternation behaviour between the apparatus and caregiver when the task became unsolvable, and toddlers also showed an increase in pointing behaviour. Furthermore, both species showed a capacity to take into account the attentional stance of the audience when manifesting gaze alternation behaviours towards them. Taken together, these results suggest that gaze alternation is both an intentional and referential communicative act and that both species can take into account the need for audience attention when communicating with them.     

Attentional control in early and later bilingual children

We examined differences in attentional control among school-age children who were monolingual English speakers, early Spanish-English bilinguals (who began speaking both languages by age 3), and later Spanish-English bilingual children (who began speaking English after age 3). Children's attentional control was tested using the Attention Network Test (ANT). All language groups performed equally on ANT networks; however, when controlling for age and verbal ability, groups differed significantly on reaction time. Early bilingual children responded faster on the ANT compared to both monolingual and later bilingual children, suggesting an attentional monitoring advantage for early bilinguals. These results add to evidence of advantaged cognitive functioning among bilinguals and are consistent with the possibility that children who begin speaking a second language earlier in childhood have greater advantages, due either to effects of acquiring a second language earlier or to longer duration of bilingual experience.     

Neural representationalism,the Hard Problem of Content and vitiated verdicts. A reply to Hutto & Myin (2013)

Colombo’s (Phenomenology and the Cognitive Sciences, 2013) plea for neural representationalism is the focus of a recent contribution to Phenomenology and Cognitive Science by Daniel D. Hutto and Erik Myin. In that paper, Hutto and Myin have tried to show that my arguments fail badly. Here, I want to respond to their critique clarifying the type of neural representationalism put forward in my (Phenomenology and the Cognitive Sciences, 2013) piece, and to take the opportunity to make a few remarks of general interest concerning what Hutto and Myin have dubbed “the Hard Problem of Content.”     

Detecting fakers of the autobiographical IAT

Autobiographical memories might be identified using a variant of the implicit association test (IAT), or the autobiographical IAT (aIAT). The aIAT provides a measure of association between true sentences and sentences describing an autobiographical event. This tool might be used to evaluate whether specific autobiographical information is encoded within the respondent's mind/brain. This paper examines possible problems arising when the aIAT is used as a lie‐detector technique. The results indicate that, when given previous instruction or training with an aIAT, examinees can alter their results and beat the ‘memory‐detector’. However, we have been able to detect successful fakers of aIAT on the basis of their specific response patterns. Our algorithm has the ability to spot the faker in a satisfactory manner. If, as demonstrated here, faking can be detected, then the real autobiographical event might also be identified when the examinee attempts to alter their results. Copyright © 2010 John Wiley & Sons, Ltd.     

Cues to intention: the role of movement information

Body movement provides a rich source of cues about other people’s goals and intentions. In the present research, we investigate how well people can distinguish between different social intentions on the basis of movement information. Participants observed a model reaching toward and grasping a wooden block with the intent to cooperate with a partner, compete against an opponent, or perform an individual action. In Experiment 1, a temporal occlusion procedure was used as to determine whether advance information gained during the viewing of the initial phase of an action allowed the observers to discriminate across movements performed with different intentions. In Experiment 2, we examined what kind of cues observers relied upon for the discrimination of intentions by masking selected spatial areas of the model (i.e., the arm or the face) maintaining the same temporal occlusion as for Experiment 1. Results revealed that observers could readily judge whether the object was grasped with the intent to cooperate, compete, or perform an individual action. Seeing the arm was better than seeing the face for discriminating individual movements performed at different speeds (natural-speed vs. fast-speed individual movements). By contrast, seeing the face was better than seeing the arm for discriminating social from individual movements performed at a comparable speed (cooperative vs. natural-speed individual movements, competitive vs. fast-speed individual movements). These results demonstrate that observers are attuned to advance movement information from different cues and that they can use such kind of information to anticipate the future course of an action.     

The Effects of Hippocampal and Area Parahippocampalis Lesions in Pigeons: II. Concurrent Discrimination and Spatial Memory

Two experiments were conducted to examine the effects of bilateral hippocampus (Hp) and area parahippocampalis (APH) lesions in pigeons on the acquisition of a visual and spatial task. In Experiment 1, pigeons were trained on three successive six-pair concurrent discrimination tasks, each using a novel set of stimuli. There was no difference between control unoperated pigeons and Hp-APH pigeons in terms of the number of sessions required to learn either the first, second, or third concurrent discrimination task. In Experiment 2, the same pigeons were trained on an open-field spatial task similar in many ways to the radial-arm maze task used with rats. In contrast to the absence of impairments on the visual concurrent discrimination task, pigeons with Hp-APH lesions were severely impaired on the acquisition of the spatial task. These findings support the view that the Hp-APH in pigeons is important for the processing of spatial, rather than visual information.     

Discrimination learning during the first year: stimulus and positional cues

In four studies, 3-, 6-, and 9-month-old human infants were tested in a discrimination learning task in which visual fixation to a particular stimulus or lateral position was reinforced with an auditory stimulus. In Experiment 1, all age groups exhibited acquisition, extinction, and reinstatement of fixation to the reinforced target or position. Experiment 2 revealed that 3-month-olds retained the positional discrimination but not the stimulus discrimination after a 5-min delay between acquisition and extinction; older infants retained both types of discriminations. In Experiments 3 and 4 we investigated a possible developmental shift in the dominance of positional versus stimulus cues by training infants on displays in which stimulus and position were confounded and then by dissociating the cues on test trials. Results from both experiments indicated positional cue dominance for young infants and stimulus cue dominance for older infants. The findings are discussed in terms of differences in the attentional demands elicited by proprioceptive versus exteroceptive cues.     

The new technology and its human impact

In the years that have passed since publication of the Club of Rome's seminal report “Limits to Growth,” the issues raised in terms of development, resource use and the environment have become ever more pressing. The potential of advances in science and technology to affect all aspects of life, including development, was then little understood. Today's unparalleled burst in scientific and technological creativity has given new options and opportunities to the world economic system.

Central to this process is a series of concepts which includes the scientification of technology, by which technology is increasingly generated and developed on scientific bases, the breaking down of interdisciplinary barriers and mankind's new found capacity literally to invent resources, leading to the emergence of whole categories of new materials. These changes make possible a new approach to economic growth, relying on decentralization and flexibility and the selection of technology mixes best suited to different socio‐economic and cultural contexts. In parallel, the key importance above all of the information technologies is producing a dematerialization of goods, a trend exemplified by the shift from product oriented to function oriented industries.

The new technologies of the 1980s are cross‐fertilizing and self‐disseminative. They are creating an exceptional number of innovative options in processes, products, services, organization and markets. Mature industrial sectors can undergo a process of rejuvenation to recover competitiveness by the grafting of advanced technologies onto traditional activities. The results are already evident in industrialized countries, such as Italy. The flexibility offered by the new technologies offers perhaps our best hope for a solution to the widening gap between rich and poor nations, contrary to the belief that identifies in advances in science and technology the seeds of a process of polarization dividing the world.

The countries of the United States, Japan and Western Europe—the so‐called Triad Power—dominate the emerging technologies and their applications. In fact, given the pace of today's technological revolution, developing countries are effectively excluded from active participation in the process of technological change. New technologies are not “off the peg,” they have to be learned and controlled, to be introduced into an existing flexible system possessing trained manpower and an adequate capital base. Introduction into the Third World, where these essential conditions are frequently lacking, will not be a painless process. Technology transfer without adaptation is likely to have undesirable cultural and societal disadvantages.

North and South are simultaneously experiencing radically different processes of evolution: the former, through restructuring and innovation; the latter, through the drive for more quantitative growth. Continuing stress on quantitative growth carries with it the risk that other goals—environmental quality, even the eradication of poverty—may suffer. Here lies the possibility that unless economic patterns change, today's imbalance between the haves and the have nots may be perpetuated or even consolidated.

The countries of the North individually all face problems in addressing these issues. The international banking system is hamstrung with the problems of Third World debt. Primary producers no longer command high prices for their raw materials on world markets and so this source of development funding is also drying up. The need is therefore for a global approach. In each Third World situation, specific needs and requirements must be identified to be tackled via technology blending, whereby a mix of emerging and traditional technologies is selected to raise the quality of output to the levels now demanded by a sophisticated world economy.

Another important area is that of energy, together with the worsening environmental and even climatic effects of energy policies. The need is for a long term strategic view to marshall the contribution new technologies can make to improving the lot of mankind in full respect for his environment.

Technological change also implies societal change. In labor markets, labor mismatch creates pockets of employment which are difficult to eradicate. Yet, overall, the hope is that expanding economic horizons will create unlimited opportunities for new jobs and new skills. The key is education and training. A feed and feedback mechanism between education and the economy represents an intangible investment in the future.

Economic growth, technological innovation, development of culture and society, have always moved together with synergism. Current changes are not so much just physical as conceptual. We are passing from a mechanical (or mechanistic) society to one that can be termed cybernetic. Causality, sequentiality and hierarchy are giving way to a functional interdependence at a systems level. Greater participation will produce more opportunities for self‐fulfillment. As old social equilibria collapse, management of social change can be seen to be as important as management of technological change.

The technological revolution has deep roots in Western culture. It is a liberating force that can lead to greater cultural enrichment. By understanding the changes now underway, we can ensure that the new pattern of society that emerges from exploitation of the new technologies retains man at its center and so benefits the whole of humanity.