Showing papers in "Biological Psychology in 1980"

TL;DR: It was found that the ERPs elicited by the words during the reading condition were characterized by a left-greater-than-right asymmetry in a slow, positive component, most pronounced for right-handed subjects having not left-handers in their immediate family.

TL;DR: Comparison between sexes showed that males reported exerting significantly more effort than females and, accordingly, secreted significantly more adrenaline, and catecholamine output increasing and cortisol output decreasing in response to the achievement demands.

TL;DR: The results show that the temporal relationship of the SNS to the N100 component is the principal factor responsible for variations in the effects of attention on the ERP with changes in information processing demands.

TL;DR: The use of a standardized imagery scale, rather than the self-generated, personally-relevant affective situations used in previous studies, allowed for more measurement of the relationship between facial muscle activity and subjective experience of emotion during affective imagery.

TL;DR: Overall smaller SPs forder subjects were interpreted as evidence for a change with age in the cortical representation of the orienting response, suggestive of an enhanced aging process in the frontal cortices.

TL;DR: A small but systematic increase in EMG activity was found during the foreperiod in the right leg, parallel to the amplitude changes in CNV late waves.

TL;DR: Event-related potentials were recorded in response to visual stimuli in two different reaction tasks in which subjects were instructed to react immediately to the stimuli, or to delay their response for a 2 sec period, respectively.

TL;DR: Evidence is provided for a relationship between sympathoadrenocortical activity and attentional demand, whereas cortisol increments seem to be more specifically related to better coping with the task.

TL;DR: Changes in the waveforms of the event-related brain potential (ERP) during repeated presentations of infrequent-familiar and inf frequent-unfamiliar visual patterns are interpreted as signs of alterations in cognitive processes that play a role during orienting and perceptual learning.

TL;DR: During word recognition tasks, differences in the stimulus related potentials to 'old' and 'new' words occurred as early as 160-190 ms after stimulus onset (N1) as well as in the late component of the wave forms (P3).

TL;DR: Event related potentials were recorded from subjects presented with separate trains of lights and tones of three intensity levels and the auditory P1-N1 and N1-P2 components increased linearly with loudness, whereas in visual evoked responses, these components were maximal at an intermediate brightness.

TL;DR: It was shown that scores on the day-to-day stress scale correlated significantly with average adrenaline level, and that low physiological reactivity was indicative of neuroticism.

TL;DR: In this paper, an attempt was made to circumvent these problems by testing Eysenck's undersocialization-poor conditionability prediction on a sample of 101 15-year-old male schoolchildren using self-report and teacher rating measures of socialization in conjuction with skin conductance measures of classical conditioning.

TL;DR: The present study explored the effects of reciprocated and unreciprocated gaze upon skin conductance and heart rate response using a paradigm used previously to investigate maternal response to infant gaze to consider possible order effects, sex differences and differential rates of habituation in response to direct and averted gaze.

TL;DR: A method is described to investigate how the contingent negative variation (CNV), developing in the S1-S2 interval of a reaction task, is influenced by slow potential shifts (SPSs) occurring before S1.

TL;DR: R rise time of SCR which is related to recovery time was found to be related to cardiac acceleration and it is suggested on the basis of these preliminary results that the measurement of SCRs rise time should be undertaken in future studies.

TL;DR: Analysis of interbeat and interpulse intervals in the different conditions of the matching task suggested that a real discrimination was probed by the procedure employed, but implied that respiratory cues afforded the basis for discrimination.

TL;DR: It is suggested that sensory processing tasks per se may be insufficiently challenging to elicit the characteristic hyperresponsivity of the Type A.

TL;DR: The neurochemical data indicated that subjects maintaining a relatively high MHPG excretion rate during the experiment who were also high in n power showed the greatest mastery of power related compared with neutral picture-word pairs, consistent with the hypothesis that brain NE turnover is specifically related to the learning of power-related responses in subjects high inn power.

TL;DR: The results of Experiments 1 and 2 support a central nervous system explanation for the iris pigmentation-reaction time phenomenon.

TL;DR: The results support the validity of the P scale as a measure of affect lability and have implications for a recent hypothesis of impaired functioning of the reticular activating system in early-onset psychosis.

TL;DR: The relationship between personality level of affect and habituation of electrodermal and respiratory measures was examined in two groups of normal subjects designated Low P (LP) and High P (HP according to the P scale of the Eysenck Personality Questionnaire.

TL;DR: A single-trial analysis, using the cross-covariance function to locate and quantify individual visual evoked potentials (VEPs), is employed to assess run-by-run changes in the habituation function of the N1-P2 wave of the vertex VEP.

TL;DR: The experiments confirmed the cortical origins of the missing stimulus potentials, and illustrated the dependence of the CNV on endogenous factors rather than the physical properties of external stimuli.

TL;DR: The seniles' CNV amplitude and latency differed from the normals and suggested that the seniles were less able to efficiently maintain and shift preparatory set, and this was also reflected in their much longer reaction time scores.

TL;DR: The results were interpreted as supporting the hypothesis that the SCR is associated with a secondary phase of the orienting process, and particularly to the VOR, which habituated quickly and was not significantly influenced by information value.

TL;DR: Results show RLA equivocal in conditionability, more emotional, and perhaps less active than RHA, while the RHA showed more 'rearing', more activity in the open field and more variety-seeking.

TL;DR: Two groups of subjects classified as high vs. low in the need for power (n power) were assessed for augmenting versus reducing in the event-related potential (ERP) elicited by neutral and power-related words.

TL;DR: The literature in general does not support the Laceys' physiological hypothesis and available evidence suggests that small increases in blood pressure may exert an excitatory influence on CNS functioning in common with other sensory stimuli, where any effect can be discerned.