Electromyographic and vasomotor activity in tension, migraine, and combined headache patients: The influence of postural variation

Electromyographic (EMG) and temporal artery vasomotor activity was evaluated in three groups of headache patients (tension, migraine and combined) and nonheadache control subjects while in reclining, sitting and standing positions. Analysis of the EMG data revealed that at all measurement sites (bilateral frontalis, bilateral trapezius) the three headache groups demonstrated significantly higher levels than the nonheadache group but did not differ from each other. A secondary analysis of the trapezius EMG data revealed that a large percentage of headache patients had “normal” EMG levels in the reclining position but showed abnormalities in the sitting and standing positions. Analysis of the left temporal artery vasomotor activity revealed that all three headache groups vasoconstricted to a significantly greater extent than the nonheadache group in the sitting and standing positions. However, a diagnosis by position interaction was found for the right temporal artery with the migraine group demonstrating a unique pattern of activity.     

What's so funny about that?: The domains-interaction approach as a model of incongruity and resolution in humor

The domains-interaction approach, originally developed in metaphor research, was used to model humor processing. Using jokes of the structure A is the B of A's domain (e.g., John Candy is the hamburger of actors), this approach allows for precise operationalizations of incongruity and resolution in terms of between-domain and within-domain semantic distance, respectively. Distances between 26 terms used in 250 of these simple jokes were derived from semantic differential ratings. As predicted, humor ratings of the jokes were positively correlated with incongruity (between-domain distance) but not with resolution (within-domain distance). Also as predicted, a significant interaction revealed that jokes with both incongruity and resolution were rated as most humorous. These findings were replicated in a second study. A third study indicated that humor perception differs from metaphor appreciation, showing main effects for both types of semantic distance, but no interaction, when the sentences were presented as metaphors instead of jokes and rated for aptness.The authors wish to thank Richard Harshman and Albert Katz for their helpful suggestions in conducting this research.     

Employee and Supervisor Ratings of Motivation: Main Effects and Discrepancies Associated with Job Satisfaction and Adjustment in a Factory Setting1

Research and theory on employee job satisfaction and well-being has increasingly concentrated on both intrinsic and extrinsic motivational factors. According to self-determination theory (Deci & Ryan, 1985). autonomy, relatedness, and competence are three intrinsic psychological needs that, if fulfilled in the workplace, will lead to greater satisfaction, performance, and general well-being. This study examines employee and supervisor perceptions of the employee's autonomy, competence, and relatedness in the workplace, as well as the degree and direction of discrepancies between employee and supervisor reports. Both employee and supervisor ratings of intrinsic motivational factors were significantly related to work satisfaction, psychological health, and self-esteem, after controlling for the extrinsic factors of pay and job status. Results of discrepancy analyses were somewhat supportive of overrating being associated with greater well-being and job satisfaction. Discussion of the results ties this study to relevant research from a self-determination perspective and to the growing literature on discrepancies and self-perception.     

Spontaneous transitions and symmetry: Pattern dynamics in human four-limb coordination

Transitions between the coordinative patterns of rhythmically moving human arms and legs were studied to test the predictions of a four-component model (Schöner, Jiang and Kelso, 1990). Based upon results from previous two-component experiments (Kelso and Jeka, 1992), three assumptions were made about the four-limb system: (1) all limb pairs produce stable in-phase and anti-phase patterns; (2) the coupling between homologous limbs (i.e., right and left arms or right and left legs) is appreciably stronger than the coupling between nonhomologous limbs (i.e., arm and leg); and (3) right-left symmetry. An analysis of a four-component model (Jeka, Kelso and Kiemel, 1993) led to the prediction of four attracting invariant circles, each with two stable patterns in the state space of four-limb dynamics. In an experiment to test this prediction, subjects were required to cycle all four limbs in one of the eight patterns to the beat of an auditory metronome whose frequency was systematically increased. All subjects demonstrated spontaneous transitions corresponding to pathways along the invariant circles. Pre-transition relative phase variability increased with required frequency up to the transition, suggesting that loss of pattern stability induced the observed transitions. Thus, despite a large number of potential transitions, differential coupling between limb pairs and symmetry of the pattern dynamics restricts the behavior of the human four-limb system to a limited area of its state space.     

Effects on Future Learning of Presenting Non-Target Stimuli in Antecedent and Consequent Conditions

This investigation assessed the effects of presenting non-target stimuli in the antecedent and consequent events on the future learning of responses to those stimuli. A 4-s constant time delay procedure was implemented to teach students with mild to moderate disabilities to read sight words. Future target stimuli (i.e., stimuli that were presented during instructional sessions of initial target stimuli, but were not directly instructed or targeted) were presented in one of two conditions; (a) in the antecedent event, or (b) in the consequent event portion of each instructional trial. Future target stimuli consisted of sight words that were unrelated to the target stimuli. An adapted alternating treatments design was used to assess and compare the two instructional conditions. Also, after students achieved criterion for reading target sight words, constant time delay was implemented to teach the future target stimuli. The number of sessions and the number and percentage of errors through criterion for teaching target and future target stimuli were assessed to measure the efficiency of the two conditions. All students reached criterion on the target stimuli and then acquired the future target stimuli when taught. Students required fewer sessions to achieve criterion on future target stimuli compared to initial target stimuli. There were minimal differences between the two conditions (i.e., antecedent versus consequent).     

The Effects of Cognitive Training on Brain Network Activity and Connectivity in Aging and Neurodegenerative Diseases: a Systematic Review

Neuropsychology Review - Cognitive training (CT) is an increasingly popular, non-pharmacological intervention for improving cognitive functioning in neurodegenerative diseases and healthy aging....     

Reduced specificity of autobiographical memories following a negative mood induction

Reduced autobiographical memory specificity (AMS) to emotional and neutral cue words appears to be a stable cognitive marker of clinical depression. For example, reduced AMS is present in remitted/recovered depressed patients and shows no reliable relationship with current levels of depressed mood in correlational studies. The present study examined whether reduced AMS could be induced in healthy volunteers with no history of depression, using a negative mood manipulation and whether levels of AMS and induced mood were positively correlated. Results showed a reduction in AMS following negative mood induction, compared to a neutral induction, whereas positive mood induction had no effects on AMS. Furthermore, lower happiness following the induction phase correlated positively with reduced AMS, and the extent of happiness reduction from pre- to post-induction correlated positively with reduction in AMS. These results suggest that AMS is, at least in part, a function of current emotion state. The implications for the literature on AMS as a stable marker of clinical depression are discussed.     

Overgeneral autobiographical memory in depressed adolescents with, versus without, a reported history of trauma

Autobiographical memory retrieval is fundamental to the developing self-concept in adolescence, to emotion regulation, and to social problem solving and has been shown to be compromised in adolescents diagnosed with depression (R. J. Park, I. M. Goodyer, & J. D. Teasdale, 2002). The authors of the present study assessed autobiographical memory overgenerality in a sample of depressed adolescent participants with, versus without, a reported history of trauma and never-depressed control participants by using an emotion word-cueing paradigm. The authors' analyses showed for the first time that adolescents with major depression and with no reported history of trauma exhibited an overgeneral memory bias. They also revealed that depressed adolescents who reported a history of trauma retrieved fewer overgeneral memories than did depressed adolescents who reported no history of trauma. Among depressed adolescents who reported a history of trauma, more severe posttraumatic stress symptoms were associated with less overgenerality. Possible accounts of these findings are suggested.