Online research in philosophy

This commentary questions the proposed resemblance between the auditory mechanisms of localization and those of the sensory registration of speech sounds. Comparative evidence, which would show that the neurophysiology of localization is adequate to the task of categorizing consonants, does not exist. In addition, Sussman et al. do not offer sensory or perceptual evidence to confirm the presence in humans of processes promoting phoneme categorization that are analogous to the neurophysiology of localization. Furthermore, the computational simulation of the linear model of second formant variation is not a plausible sensory mechanism for perceiving speech sounds.

Uttal has written 9 LEA titles over the past 25 yrs. The audience will be the same people who bought Uttal's past work, as well as people teaching courses in THEORY & METHODS of PSYCH.,those w/interests in THEORETICAL PSYCH & the HISTORY & PHILOSOPHY OF.

A spate of recent anti-localizationist publications have re-ignited the old debate about the localization of function. Many of the recent attacks on localization, however, are directed at what I will argue to be a narrow and outmoded view of localization, and thus have little conceptual or empirical impact. What I hope to present here is an analysis of functional localization that more adequately reflects the sophistication and complexity of its use in neuroscientific research, both historically and recently. Proceeding first by way of contrast, I examine theanti-localizationist positions of holism andequipotentiationism. Then, I present a four-fold analysis of localization according to physical scope, physical kind, functional scope, and functional kind. Next, I turn to a discussion of the heuristic value oflocalization in deciphering structure-functionrelationships. Finally, I hope to show that the overall view of functional localization that emerges from these considerations constitutes a much more elusive target than its critics assume. It serves to mitigate, and insome instances even defeat, some forms ofanti-localizationist criticisms.

Case studies in the psychophysics, modeling and localization of human vision are presented as an example of.

The field of cognitive imaging is explodingboth in terms of the amount of our scientificresources dedicated to it and the associatedpublication rate. However, all of this effortis based on a critical question – Do cognitivemodules exist? Both of the reviewers of my book(Uttal, 2001) and I agree that this questionhas not yet been satisfactorily answered and,depending on the ultimate answer, the cognitiveimaging approach as well as some other parts ofthe quest for mechanistic models of mind mightnot be successful. Our views of how our scienceshould respond to this serious problem,however, are quite different. Both ProfessorBechtel and Lloyd argue for an optimisticattack on the problem of the localization ofcognitive processes in the brain based on thehistory of other sciences. I argue that arealistic appreciation of the limits of thisapproach should temper the enthusiasm for whatultimately will go the way of other attempts tounravel the mind-brain problem.

Good research requires, among other virtues,(i) methods that yield stable experimentalobservations without arbitrary (post hoc)assumptions, (ii) logical interpretations ofthe sources of observations, and (iii) soundinferences to general causal mechanismsexplaining experimental results by placing themin larger explanatory contexts. In TheNew Phrenology , William Uttal examines theresearch tradition of localization, and findsit deficient in all three virtues, whetherbased on lesion studies or on new technologiesfor functional brain imaging. In this paper Iconsider just the arguments concerning brainimaging, especially functional MagneticResonance Imaging. I think that Uttal is tooharsh in his methodological critique, butcorrect in his assessment of the conceptuallimitations of localist evidence. I proposeinstead a data-driven test for assessingrelative modularity in brain images, and showits use in a secondary analysis of fMRI datafrom the National fMRI Data Center(www.fmridc.org). Although the analysis is alimited pilot study, it offers additionalempirical challenge to localism.

This paper defends cognitive neuroscience’s project of developing mechanistic explan- ations of cognitive processes through decomposition and localization against objections raised by William Uttal in The New Phrenology. The key issue between Uttal and researchers pursuing cognitive neuroscience is that Uttal bets against the possibility of decomposing mental operations into component elementary operations which are localized in distinct brain regions. The paper argues that it is through advancing and revising what are likely to be overly simplistic and incorrect decompositions that the goals of cognitive neuroscience are likely to be achieved.