Use of the process dissociation procedure to study the contextual effects on face recognition in schizophrenia: familiarity, associative recollection and discriminative recollection.

Contextual effects were explored in schizophrenia patients and paired comparison subjects during a long-term face recognition task. The objective was to investigate the contextual effects on face recognition by manipulating, in the same experiment, the perceptual context of the face (intrinsic vs. extrinsic) and the task context (inclusion vs.

Changes in the neuropsychological correlates of clinical dimensions between the acute and stable phase of schizophrenia.

This study was designed to investigate whether the neuropsychological correlates of the symptom dimensions of schizophrenia vary with the clinical state in patients followed from the acute to stable the phase of the illness. Fifteen patients were assessed for symptoms (SAPS-SANS) and undergone a complete neuropsychological assessment at two sessions. The first session (S1) was carried out within six days after admission, i.

Evaluation of the nasal response to histamine provocation with acoustic rhinometry.

The objectives of this study were to evaluate the reproducibility of the nasal response to histamine with the acoustic rhinometer and to compare the responses in normal and rhinitic subjects. Our study comprised 10 normal and 10 rhinitic subjects. Each subject had six sessions of provocation: three with histamine phosphate at a concentration of 4 mg/mL and three with saline phosphate provocation.

Comparative spin-label study of the dynamic structure of human hemoglobins A and F and the influence of the antibiotic, chloramphenicol.

Hemoglobin A (HbA) and hemoglobin F (HbF) dynamic structures have been studied using spin-label ESR spectra analysis technique, which permits quantitative separation of slow macromolecular rotation (described by rotational correlation time, tau c) and fast anisotropic nitroxide radical motion (described by the 'order parameter', S). The hardly restricted motion of the maleimide spin-label reflects the overall macromolecular rotation and small dynamic structure differences between HbA and HbF were observed (tau c is equal to 26 and 27 ns, respectively). On the other hand, the dynamic equilibrium of the iodoacetamide spin-label demonstrates significant differences between beta- and gamma-chain C-terminus flexibility.