Of Brains in Vats,Whatever Brains in Vats May Be

Hilary Putnam has offered two arguments to show that we cannotbe brains in a vat, and one to show that our cognitive situationcannot be fully analogous to that of brains in a vat. The latterand one of the former are irreparably flawed by misapplicationsof, or mistaken inferences from, his semantic externalism; thethird yields only a simple logical truth. The metaphysical realismthat is Putnams ultimate target is perfectly consistent withsemantic externalism.     

Johnsen on Brains in Vats

This is a response to a recent Philosophical Studies article by Bredo Johnsen, in which he makes a number of criticisms of Putnamian anti-skeptical arguments.     

Surprisingly Neuroplastic Human Brains: Reading,Science, Philosophy,Theology

Human brains, dramatically more complex than anything else in the known universe, are marvelously mutable. Recent neuroscience focuses on how humans create cumulative transmissible cultures which in turn shape mental development. When cultures become literate, cognitive powers escalate. Although until recently only a comparative few learned to read and write, this takes place with the serendipitous re-use of pattern recognizing capacities, such as those for recognizing faces. With sustained reading diligence, as required during education in science, philosophy, and theology, this results in advanced cognitive skills.     

Distorting Face Representations in Newborn Brains

What role does experience play in the development of face recognition? A growing body of evidence indicates that newborn brains need slowly changing visual experiences to develop accurate visual recognition abilities. All of the work supporting this “slowness constraint” on visual development comes from studies testing basic-level object recognition. Here, we present the results of controlled-rearing experiments that provide evidence for a slowness constraint on the development of face recognition, a prototypical subordinate-level object recognition task. We found that (1) newborn chicks can rapidly develop view-invariant face recognition and (2) the development of this ability relies on experience with slowly moving faces. When chicks were reared with quickly moving faces, they built distorted face representations that largely lacked invariance to viewpoint changes, effectively “breaking” their face recognition abilities. These results provide causal evidence that slowly changing visual experiences play a critical role in the development of face recognition, akin to basic-level object recognition. Thus, face recognition is not a hardwired property of vision but is learned rapidly as the visual system adapts to the temporal structure of the animal's visual environment.     

Threat Sensitivity, Incentive Sensitivity, and the Experience of Relief

ABSTRACT Relief is a positively valenced affect that occurs when a threat is removed or avoided. Among dimensional theories, this experience is accounted for by appealing to one of two different self-regulatory systems. Some hold that an approach system is responsible for all types of positively valenced affect, including this one. Others hold that an avoidance system is responsible for this particular positive affect. Two studies are reported (total N =422) that examined this issue, using a method in which individual differences in overall threat sensitivity and incentive sensitivity were assessed and related to responses to relief-related hypothetical scenarios. Threat sensitivity was the strongest positive correlate of relief in both studies. Reward responsiveness also related positively (independently) to relief. Fun seeking related inversely to relief. Discussion centers on theoretical implications of the findings for viewing effects of threat sensitivity, and on relations between dimensional and appraisal-based views of affective experience.     

Minding Animals, Minding Earth: Old Brains, New Bottlenecks

Abstract. I emphasize the importance of broadening behavioral, ecological, and conservation science into a more integrative, interdisciplinary, socially responsible, compassionate, spiritual, and holistic endeavor. I stress the significance of studies of animal behavior, especially ethological research concerned with animal emotions in which individuals are named and recognized for their own personalities, for helping us to learn not only about the nonhuman animal beings with whom we share Earth but also about who we are and our place in nature. We are best understood in relationship with others. To this end I develop the notions of “minding animals” and “deep ethology.” Animals are sources of wisdom, a way of knowing. We are all citizens of Earth, members of a global community in which intimate reciprocal and beneficent peaceful relationships are mandatory. A world without cruelty and with boundless compassion, respect, grace, humility, spirituality, and love would be a better world in which to live. We have compelling responsibilities for making Earth a better and more peaceful habitat for all beings. It is essential that we do better than our ancestors. We must reflect and step lightly as we “redecorate” nature. Time is not on our side. I plead for the development of heartfelt and holistic science that allows for joy and play. Science need not be suspicious of things it cannot fully understand. We must not avert our eyes or other senses from the eyes and voices of other beings who urgently need our uncompromising and unconditional aid and love. We can do much more than we have done for animals and the Earth.     

Sensitivity,Induction, and Miracles

Sosa, Pritchard, and Vogel have all argued that there are cases in which one knows something inductively but does not believe it sensitively, and that sensitivity therefore cannot be necessary for knowledge. I defend sensitivity by showing that inductive knowledge is sensitive.     

Genes, Brains and Gendered Behavior: Rethinking Power and Politics in Response to Condit, Liesen, and Vandermassen

In response to the commentaries by Condit, Liesen, and Vandermassen, I argue that we lack a more nuanced understanding of women’s political behavior (and therefore politics in general) because of the sustained barrier between the social and natural sciences, historical missteps, researcher bias, and perhaps an inclination to ask the wrong questions. By taking a Darwinian feminist approach to exploring gendered political behavior, and with the tools of behavior genetics and cognitive neuroscience, we can better understand the psychological and behavioral repertoires of men and women as well as predict political outcomes.     

Sensitivity,safety, and impossible worlds

Philosophical Studies - Modal knowledge accounts that are based on standards possible-worlds semantics face well-known problems when it comes to knowledge of necessities. Beliefs in necessities are...     

Busting Out: Predictive Brains,Embodied Minds,and the Puzzle of the Evidentiary Veil

Biological brains are increasingly cast as ‘prediction machines’: evolved organs whose core operating principle is to learn about the world by trying to predict their own patterns of sensory stimulation. This, some argue, should lead us to embrace a brain‐bound ‘neurocentric’ vision of the mind. The mind, such views suggest, consists entirely in the skull‐bound activity of the predictive brain. In this paper I reject the inference from predictive brains to skull‐bound minds. Predictive brains, I hope to show, can be apt participants in larger cognitive circuits. The path is thus cleared for a new synthesis in which predictive brains act as entry‐points for ‘extended minds’, and embodiment and action contribute constitutively to knowing contact with the world.