The relationship between long-term psychiatric clients' psychological well-being and their perceptions of housing and social support

This research tested hypotheses derived from motivation-hygiene theory that housing and social support would be differentially related to long-term psychiatric clients' Positive Affect and Negative Affect. The participants were 89 people between the ages of 18 and 65, who had been hospitalized for psychiatric problems at least twice and who had been diagnosed as schizophrenic, chronic depressive, or manic-depressive. Results indicated that the number of Housing Concerns was positively correlated with Negative Affect but not Positive Affect. Support Satisfaction was negatively correlated with Negative Affect, and Frequency of Support was positively correlated with Positive Affect. Interactions between the housing variable and Network Size were found for both Positive Affect and Negative Affect, thus supporting the stress-buffering hypothesis. The findings provided mixed support for motivation-hygiene theory.     

Mood induction in a clinically depressed population

Mood induction paradigms have become particularly useful in isolating and examining the relationship between mood and cognition relative to depressive vulnerability. The relationship between these two variables was examined using a 2 × 4 design (Diagnostic Group × Condition) whereby subjects classified as depressed (N=72) and nondepressed (N=61) were assigned to one of four conditions. It was shown that the cognitions of clinically depressed individuals were more dysfunctional than those of nondepressed subjects and that they can undergo temporary states of elation in the absence of any significant change in depressive cognition. How these results relate to cognitive theories of emotion is discussed.     

The neuropsychology of paramedian thalamic infarction

A longitudinal study of three patients with CT-scan documented paramedian thalamic infarctions (bilateral, primarily right, unilateral left) is reported and the neuropsychology of human paramedian thalamic infarction is reviewed. The neuropsychological deficits following these selected lesions, the nature of the clinical memory disorder, and the neuroanatomy of memory are discussed. The significance of cortical/subcortical relationship in explaining observed behavioral changes is emphasized. Brain damage with maximum involvement in the dorsomedial nuclei and mamillothalamic tracts appears to cause primarily a memory disorder and frontal-limbic behavioral changes, the severity and profile of deficits depending on lesion extent and location. Both anterograde and remote memory loss may be present. Asymmetry in memory at the level of the thalamus was observed, following the left-verbal, right-nonverbal dichotomy.     

Allocation of self-paced study time and the "labor-in-vain effect"

This research explored the possibility that a metacognitive control process (namely, the allocation of self-paced study time) might be affected by the output from metacognitive monitoring processes (i.e., ease-of-learning and/or feeling-of-knowing judgments). In three experiments, university undergraduates received instructions that emphasized either accuracy of learning or speed of learning. The major findings were: (a) ease-of-learning judgments and feeling-of-knowing judgments are reliably related to study-time allocation, with more self-paced study time being allocated to the supposedly more difficult items; (b) even when instructed to master every item and when allowed unlimited study time to do so, people terminate study before learning is completed; and (c) large increases in self-paced study time can yield little or no increase in the subsequent likelihood of recall (the "labor-in-vain effect"). Implications are drawn for a model of the interplay between metacognitive monitoring processes and metacognitive control processes.     

Song syllable discrimination by song sparrows (Melospiza melodia)

A habituation test paradigm was used to examine the responses of free-living territorial adult male song sparrows (Melospiza melodia) to a range of synthetic songs. The three-phrased test songs differed from one another in having either conspecific or heterospecific (swamp sparrow, M. georgiana) syllables, or silence, in the second phrase. Subjects were exposed to repeated presentations of one song type until their approach distance to a loudspeaker increased. In one experiment, birds were habituated with a song consisting of three phrases of song sparrow syllables and then tested for generalization to either novel song sparrow syllables in the second phrase, swamp sparrow syllables, or silence. Birds discriminated between song sparrow syllables on two response measures, and between song sparrow and swamp sparrow syllables on one measure. In a second experiment, after habituation to a song with swamp sparrow syllables in the second phrase, birds did not generalize to novel song sparrow syllables, but they did generalize to novel swamp sparrow syllables. Thus song sparrows make finer distinctions among conspecific syllable variants than with alien syllables. The results further suggest that subtle species-specific differences in note structure within syllables are discriminated by song sparrows and potentially provide an adequate basis for individual recognition by song.     

Instructional control of sex-related motor behavior in extremely masculine or feminine adults

The main purpose of this study was to examine the degree to which apparently sex-typed subjects manipulated behaviors on the Sex Role Motor Behavior Checklist in response to instructions to convey specific sex-role impressions. Extremely masculine and feminine males and females (10–12 per group) were assessed for their ability to change sex-related motor behavior upon request. Subjects were able to produce significant increases in masculine and feminine motor behavior, particularly in the areas of walking and sitting. Many individual behaviors, however, showed small or inconsistent changes. Apparently, many of the motor differences naturally displayed by males and females are either not consciously part of sex-typed adults' concept of given sex roles or are relatively inflexible in this population. Secondary purposes of the study were to identify specific sex-related motor behavior (a) to alter when changes in sex role seem desirable and (b) to utilize as dependent measures in measuring changes in sex role. Walking and sitting were shown to be especially important areas.The authors would like to thank David Millsaps, Reid Smith, Donna Gosnell, Ruth Rankin, and Stephanie Stohr for their assistance.     

Automated system for acoustic research

An automated system is described for stimulus presentation and response collection in psychoacoustic research. The system is capable of producing rapidly and precisely a wide range of discrete frequencies.