Cerebral blood flow in normal and abnormal sleep and dreaming

Measurements of regional or local cerebral blood flow (CBF) by the xenon-133 inhalation method and stable xenon computerized tomography CBF (CTCBF) method were made during relaxed wakefulness and different stages of REM and non-REM sleep in normal age-matched volunteers, narcoleptics, and sleep apneics. In the awake state, CBF values were reduced in both narcoleptics and sleep apneics in the brainstem and cerebellar regions. During sleep onset, whether REM or stage I-II, CBF values were paradoxically increased in narcoleptics but decreased severely in sleep apneics, while in normal volunteers they became diffusely but more moderately decreased. In REM sleep and dreaming CBF values greatly increased, particularly in right temporo-parietal regions in subjects experiencing both visual and auditory dreaming.     

The Political Ecology of Dignity: Human Dignity and the Inevitable Returns of Animality

Human dignity names a two‐tier political ecology: one moral‐political community whose members bear a special status of inviolability, and another larger community where violence and degradation are routine. Because ecological relations are never uni‐directional, the routinized violence that “belongs” in interactions with nonhuman animals returns, normalizing violence across gendered, racialized, and politicized lines of human difference. An account of dignity that begins from creaturely vulnerability rather than anthropological exceptionalism not only better expresses key theological insights of the Christian tradition, it also resists the repressed and disavowed violence generated by prevalent accounts of dignity.     

The finite model property for BCK and BCIW

This paper shows that both implicational logicsBCK andBCIW have the finite model property. The proof of the finite model property forBCIW, which is equal to the relevant logicR , was originally given by the first author in his unpublished paper [6] in 1973. The finite model property forBCK can be obtained by modifying the proof of that forBCIW. Here, both of these proofs will be given in a unified form and the difference between them will be clarified. Further discussions will be given in the last section.The first author wishes to thank IIAS-SIS (Fujitsu Laboratories Ltd., Numazu) for 9 months hospitality in Japan, and for facilitating this research.Presented byJan Zygmunt     

Effect of drugs on human discrimination ability

The effects of phenobarbital, nitrazepam, diazepam, medazepam, chlordiazepoxide, phenytoin, carbamazepine, thioridazine and caffeine on the detail discrimination ability of healthy subjects were compared with those of a placebo by means of the d2-test and the Bourdon-Wiersma test. The impairment of performance induced by phenobarbital, thioridazine and diazepam varied with dosage. The improved performance yielded by caffeine was related to both dose and time. Both deletion tests yielded the same results. They are suitable for detecting the effects of drugs and have proved useful for clinicopharmacological and clinicopharmacological and clinicopsychopharmacological studies.     

Investigation of phonological encoding through speech error analyses: achievements, limitations, and alternatives.

Phonological encoding in language production can be defined as a set of processes generating utterance forms on the basis of semantic and syntactic information. Most evidence about these processes stems from analyses of sound errors. In section 1 of this paper, certain important results of these analyses are reviewed. Two prominent models of phonological encoding, which are mainly based on speech error evidence, are discussed in section 2. In section 3, limitations of speech error analyses are discussed, and it is argued that detailed and comprehensive models of phonological encoding cannot be derived solely on the basis of error analyses. As is argued in section 4, a new research strategy is required. Instead of using the properties of errors to draw inferences about the generation of correct word forms, future research should directly investigate the normal process of phonological encoding.     

Why are Girls Less Physically Aggressive than Boys? Personality and Parenting Mediators of Physical Aggression

The primary goal of the present analysis was todetermine whether the commonly observed genderdifference in physical aggression could be accounted forby gender differences in selected personality and social contextual factors. Eighty-nineadolescents (M age = 16.0; 52% female; 53%European-Americans, 38% Latinos)completed self-reportmeasures, including sympathy (empathic concern andperspective taking) and parental involvement (support andmonitoring). Mediation analyses revealed that relativelyhigh levels of both empathic concern and parentalmonitoring accounted for relatively low levels ofphysical aggression. In addition, sympathy (for males)and parental involvement (males and females) werenegatively related to physical aggression. Discussionfocused on theoretical and practical implications of these findings.     

Exploring Behavioral Activation and Inhibition Sensitivities Among College Students at Risk for Bipolar Spectrum Symptomatology

We explored cross-sectionally the roles in bipolar spectrum symptomatology of two broad motivational systems that are thought to control levels of responsiveness to cues of threat and reward, the Behavioral Inhibition System (BIS) and the Behavioral Activation System (BAS). Undergraduate students (n = 357) completed questionnaires regarding (a) bipolar spectrum disorders [the General Behavior Inventory (GBI), a well-established clinical screening measure], (b) current depression and mania symptoms (the Internal State Scale; ISS), and (c) BIS/BAS sensitivities (the BIS/BAS scales). Validated cutoff scores on the GBI were used to identify individuals at risk for a mood disorder. It was hypothesized that, among at-risk respondents, high BAS and low BIS levels would be associated with high current mania ratings, whereas low BAS and high BIS would be associated with high current depression ratings. Multiple regression analyses indicated that, among at-risk individuals (n = 63), BAS accounted for 27% of current mania symptoms but BIS did not contribute. For these individuals, BAS and BIS were both significant and together accounted for 44% of current depressive symptoms.     

Functional analysis and treatment of problem behavior exhibited by elementary school children.

A functional analysis involving antecedent events was conducted with 4 students who had been identified as having behavior problems. Off-task behavior was measured while task difficulty and level of adult attention were manipulated during analogue sessions. Results revealed two patterns: Three students displayed higher rates of off-task behavior during difficult tasks, and 1 displayed higher rates of off-task behavior during sessions with low attention. Improved behavior was observed when students were taught an alternative behavior that matched the assessment results.     

Effects of presenting incidental information in consequent events on future learning

The effects of presenting future target stimuli in the consequent event following correct responses to current target stimuli were examined in two experiments teaching eight students with moderate handicaps to name photographs. In Experiment I, progressive time delay was used to teach two sets of photographs. During instruction, correct responses to one set of stimuli resulted in praise and presentation of the printed word for the person in the photograph (future condition). In the second set, a correct response was followed by praise alone (non-future condition). After establishing criterion level performance on both sets of photographs, students were taught to read the printed word from each of the two sets. Experiment II was a systematic replication of Experiment I. Four students from a different classroom also were taught to name two sets of photographs. An adapted alternating treatments design was used in each experiment. The results indicated that (a) all students learned to name the photographs; (b) presentation of future target stimuli (words) in consequent events resulted in seven of the eight students learning to read some of the words; and (c) the total number of sessions, trials, errors, and percentage of errors