Daniel Weiss

Challenging earlier cognitivist approaches, recent theories of embodied cognition argue that the human mind and its functions are best understood as intimately bound up with the human body and its physiological dimensions. Some scholars have suggested that such theories, in departing from some core assumptions of the Western philosophical tradition, display significant similarities to certain non-Western traditions of thought, such as Buddhism. This essay extends such parallels to the Jewish tradition and argues that, in particular, classical rabbinic thought presents a profoundly nondualistic account of the body–soul relation in its connection to cognition, action, and embodiment. Classical rabbinic texts therefore model the possibility of engaging with ‘Western’ conceptions such as God and the soul, while doing so in a manner that resonates strongly with many aspects of contemporary scientific theories. Thus, beyond their value as historical documents, insight into the texts and concepts of classical rabbinic Judaism can contribute to the further development of new theories of intellect and cognition

Recent advances in the field of statistical learning have established that learners are able to track regularities of multimodal stimuli, yet it is unknown whether the statistical computations are performed on integrated representations or on separate, unimodal representations. In the present study, we investigated the ability of adults to integrate audio and visual input during statistical learning. We presented learners with a speech stream synchronized with a video of a speaker’s face. In the critical condition, the visual (e.g. /gi/) and auditory (e.g. /mi/) signals were occasionally incongruent, which we predicted would produce the McGurk illusion, resulting in the perception of an audiovisual syllable (e.g. /ni/). In this way, we used the McGurk illusion to manipulate the underlying statistical structure of the speech streams, such that perception of these illusory syllables facilitated participants’ ability to segment the speech stream. Our results therefore demonstrate that participants can integrate audio and visual input to perceive the McGurk illusion during statistical learning. We interpret our findings as support for modality-interactive accounts of statistical learning.

This essay explores classical rabbinic literature's understanding of the prohibition of bloodshed alongside its understanding that "the image of God" corresponds to the physically embodied individual. This conception generates radical implications so that, apart from the narrow instance of a direct aggressor with intent to kill or rape, it is never legitimate to cause the death of any person, even in pursuit of a supposed "greater good." While notions of war and execution are retained in principle, the requirement of direct divine sanction for such actions neutralizes them in practice, removing them from the domain of human judgment and justification.

ObjectiveFreezing of gait is detrimental to patients with idiopathic Parkinson’s disease. Its pathophysiology represents a multilevel failure of motor processing in the cortical, subcortical, and brainstem circuits, ultimately resulting in ineffective motor output of the spinal pattern generator. Electrophysiological studies pointed to abnormalities of oscillatory activity in freezers that covered a broad frequency range including the theta, alpha, and beta bands. We explored muscular frequency domain activity with respect to freezing, and used deep brain stimulation to modulate these rhythms thereby evaluating the supraspinal contributions to spinal motor neuron activity.MethodsWe analyzed 9 PD freezers and 16 healthy controls. We studied the patients after overnight withdrawal of dopaminergic medication with stimulation off, stimulation of the subthalamic nucleus or the substantia nigra pars reticulate, respectively. Patients performed a walking paradigm passing a narrow obstacle. We analyzed the frequency-domain spectra of the tibialis anterior and gastrocnemius muscles in ‘regular gait’ and during the ‘freezing’ episodes.ResultsIn stimulation off, PD freezers showed increased muscle activity of the alpha and low-beta band compared to HC in both TA and GA. This activity increase was present during straight walking and during the freezes to similar extent. STN- but not SNr-DBS decreased this activity and paralleled the clinical improvement of freezing.ConclusionWe found increased muscle activation of the alpha and lower beta band in PD freezers compared to HC, and this was attenuated with STN-DBS. Future studies may use combined recordings of local field potentials, electroencephalography, and electromyography to interrogate the supraspinal circuit mechanisms of the pathological activation pattern of the spinal pattern generator.

In this essay, I argue that a comparison of Derrida’s “Faith and Knowledge” to the texts and thought of classical rabbinic Judaism can illuminate new conceptual connections among the different elements of Derrida’s thought. Both Derrida and the rabbinic texts can be viewed as affirming a type of “holding back” and “allowing the other to be,” stances which Derrida links to “religiosity” and to “messianicity beyond all messianism.” Moreover, the rabbinic texts appear to avoid the “autoimmune” reaction that Derrida sees as stemming from many sacrificial and self-sacrificial logics in which the self is problematically sacrificed in order to preserve the “unscathed” other. In addition, the rabbinic texts’ stance concerning divine authorization for war and capital punishment help to illuminate Derrida’s claim that the ostensibly “secular” wars of modern states are in fact better understood as “wars of religion.”