The Impossible of Faith: Marxist and Post–Secular Interpretations of Belief and Religion

Books reviewed in this article:
Slavoj Žižek, On Belief
John D. Caputo, On Religion     

Blockade of GABAA receptors in the interpositus nucleus modulates expression of conditioned excitation but not conditioned inhibition of the eyeblink response

The cerebellum and related brainstem structures are essential for excitatory eyeblink conditioning. Recent evidence indicates that the cerebellar interpositus and lateral pontine nuclei may also play critical roles in conditioned inhibition (CI) of the eyeblink response. The current study examined the role of GABAergic inhibition of the interpositus nucleus in retention of CI. Male Long-Evans rats were implanted with a cannula positioned just above or in the anterior interpositus nucleus before training. The rats were trained with two different tones and a light as conditioned stimuli, and a periorbital shock as the unconditioned stimulus. CI training consisted of four phases: 1) excitatory conditioning (8 kHz tone paired with shock); 2) feature-negative discrimination (2 kHz tone paired with shock or 2 kHz tone concurrent with light); 3) summation test (8 kHz tone or 8 kHz tone concurrent with light); and 4) retardation test (light paired with shock) After reaching a criterion level of performance on the feature-negative discrimination (40% discrimination), 0.5 μl picrotoxin (a GABA_A receptor antagonist) was infused at one of four concentrations, each concentration infused during separte test sessions. Picrotoxin transiently impaired conditioned responses during trials with the excitatory stimulus (tone) in a dose-dependent manner, but did not significantly impact responding to the inhibitory compound stimulus (tone-light). The results suggest that expression of conditioned inhibition of the eyeblink conditioned response does not require GABAergic inhibition of neurons in the anterior interpositus nucleus.     

The Continuum of Deep/Surface Dyslexia

A right-handed male sustained traumatic brain injury which resulted in anomia, dyslexia, and agraphia. The most severe CT (computed tomography)-identified brain damage was located in the right parieto-temporal lobe. In the first months following the injury, the pattern of reading errors was similar to that associated with deep dyslexia. However, nonlexical derivation of phonology from print was not abolished. As the patient's ability to associate letter patterns with sounds improved, oral reading also improved. Although he no longer produced semantic errors in oral reading, he continued to produce oral reading errors that were visually and phonologically related to the targets. Four months after the injury, the error pattern observed in the patient's oral reading was consistent with very mild surface dyslexia. The significance of these observations to dual-deficit models of acquired dyslexia is discussed, as are their implications for rehabilitation.     

Prospective payment: its impact on psychology's role in health care

This article describes the new Medicare payment system based on diagnosis-related groups (DRGs) and its impact on professional psychology. DRGs represent medically oriented notions about how many inpatient days a prudent physician needs to effectively treat a patient who suffers from a specified disease. However, for the most part, DRGs ignore the behavioral variables that moderate entry into the tertiary care system and the subsequent use of hospital resources. Under DRGs, the development and use of behavioral treatments for somatic disorders could be discouraged. For example, many newer behavioral medicine techniques may be more time-consuming and/or expensive than traditional treatment options (e.g., bed rest vs. biofeedback for low back pain) and thus not fall within the time period or "trim points" alloted for such disorder, regardless of comparative effectiveness. Also, under the new system, psychologists can no longer bill separately for their inpatient services. It is argued that the framers of health care policies should recognize and support health psychologists in light of the fact that many of their techniques can reduce the cost and consumption of health care through programs that: reduce behavioral risk factors, increase compliance with medical regimens, and prepare patients psychologically for stressful medical procedures.