The interpretation of universal affirmative propositions

It is proposed that All F are G is often given a ‘structure-neutral’ interpretation, as All, F, G, lacking a subject-predicate distinction. In the first experiment, children aged 6–7–8, and 11–12, and adults, acted out instructions like “Make a building in which all the yellow blocks are square”. The experiment demonstrated the dominance in children and decline with age of structure-neutral interpretations. In a second experiment, with the same age groups, propositions of the form All F are G, varying as to the factual inclusion relations expressed, were presented as the major premises of syllogistic items. The results indicated the presence of structure-neutral interpretations under some circumstances in adults as well as children, and also demonstrated the existence in all subjects of a ‘pragmatic processing’ mode that becomes less obligatory with age. In pragmatic interpretations, meaning is determined by previously known factual relations between the things which the words represent, rather than by grammatical relations between the words themselves.     

An olfactory investigation of the compatibility of oddity instructions with the design of a 3-AFC signal detection task

There are two principal differences between the Triangular Method and the 3-Alternative Forced-Choice (3-AFC) procedure originating from the theory of signal detection. These are the instructions given and the types of three-stimulus sets (‘triangles’) presented to the subject.In the Triangular Method the subjects are instructed to select the odd stimulus from each triangle presented, whilst in the 3-AFC task the subject must either select the strongest or identify the weakest stimulus.The triangles presented in the Triangular Method sometimes contain two physically weak stimuli plus one stronger, and at other times two strong stimuli plus one weaker. In contrast, in a 3-AFC experiment all the triangles comprise either two weak plus one stronger, or two strong plus one weaker stimulus.Previous research has shown that the parameter d' is invariant with the two procedures, if the appropriate models are used for conversion of proportions of correct responses into corresponding values of d'.The present experiments provide evidence that the Triangular Method instructions (to select the odd stimulus) used in combination with the 3-AFC task design (using three types of triangles) does not result in biased estimates of d'. In addition, it was shown that even after a large number of presentations the value of d' remained stable, which supports the notion of stability of the decision rule implied by the oddity instructions.     

Word recognition in loud noise

Loud noise has been shown to bias environmental stimulus selection to high-priority or ‘dominant’ task and stimulus features while causing relative neglect of less dominant aspects. The present concern was whether a similar influence of noise would occur when selecting, or rather, retrieving information from memory. Separate groups performed a semantic recognition task in 95 dB(A) ‘noise’ or 70 dB(A) ‘quiet’ conditions. Recognition of semantically ‘high-dominance’ words was reliably faster in noise but ‘low-dominance’ recognition was not impaired relative to performance in quiet conditions. On this basis, the results only partially support a possible common principle governing selection of environmental and memorial information in noise. However, they confirm Eysenck's (1975) contention that arousal may affect retrieval processes (in addition to initial learning) and that failure to account for the former influence may obscure inferences drawn from previous research.     

Interpersonal attraction and person perception: Two tests of three balance models

Two experiments tested the adequacy of three balance models (equal-weights tetrahedron model, unequal-weights tetrahedron model, Feather model) for the p?o?x triad. In the first experiment, involving a variation of Byrne's anonymous-stranger technique, a PDP-11 computer was used to provide feedback on five attitude issues for each of the cells of a design created by five levels of the p?x variable (?2, ?1, 0, +1, +2) and five levels of the o?x variable (?2, ?1, 0, +1, +2). The dependent variable was p?o, interpersonal attraction. In the second experiment there were five-level manipulations of both p?x and o?p with an o-x (person perception) dependent variable. The correlations between obtained results and the predicted values for each of the three models were quite high (.64, .65, .61, respectively, in the first experiment and .60, .59, and .58, respectively, in the second), but the Feather model was judged least adequate. The data in the first experiment were best described by the unequal-weights tetrahedron model, and the data in the second experiment were best described by the equal-weights tetrahedron model. It was argued that avoidance of mutual dislike was responsible for the relatively greater support for the unequal-weights than equal-weights tetrahedron model in the first experiment.     

Developmental changes in incidental memory as a function of processing level,congruity, and repetition

Second-, fifth-, and ninth-grade students (8, 11, and 14 years of age, respectively) answered acoustic and semantic questions about words which were either congruent or incongruent with the questions. Subsequently, students' free recall of the words was unexpectedly tested. For words presented once in the list, only orienting task and congruity main effects were found. For twice-presented words, grade level interacted with both variables in that older students' recall was better than younger students' only for semantically encoded, congruent words. This finding is consistant with the hypothesis that developmental increases in semantic knowledge enhance the potential for encoding elaboration, but is in apparent conflict with the results of M. F. Geis and D. M. Hall (Child Development, 1978, 49, 857–861) who found no such interaction for second- and fifth-grade children. The different age spans included in the two studies provides one resolution of the discrepancy in results. However, a second experiment tested the importance of a procedural difference between the two studies. M. F. Geis and D. M. Hall (Journal of Experimental Child Psychology, 1976, 22, 58–66; 1978) presented the question after the stimulus word while we presented the question before the word. For ninth-grade students, the question after condition resulted in an attenuation of the recall difference between semantic and acoustic questions compared to the question before condition. It was argued that the pattern of developmental differences in incidental memory that is obtained may be related to which procedure is utilized.     

Attribute models and the effect of frequency and imagery values on word recognition

Recent explanations of the word frequency effect in recognition studies (Gregg 1976; Glanzer and Bowles 1976) state that this effect occurs because words of high and low frequency differ in encoding variability and number of associative relations. These models suggest that the different recognition scores of high and low frequency words are the result of both more hits and less false positives on words that have a low frequency of occurence. As Morris (1978) showed, these models can also be applied on the effect of word imagery values on recognition performance.In the first experiment to be reported here the differential effects of words of high and low frequency and imagery values on hit and false positive rates were examined. The predicted results concerning high and low imagery values were indeed found, but the predictions with respect to high and low frequency words were not completely substantiated. However, it was shown that this deviation can be explained by a response bias effect.In a second experiment an assumption concerning the underlying distributions of high and low imagery ‘old’ and ‘new’ items was tested. In accord with the expectation it was found that the distributions of ‘old’ high and low imagery words did not differ, but that there was a clear difference in the distributions of ‘new’ high and low imagery words.     

Small acts,kind words and “not too much fuss”: Implicit activisms

In this paper, we suggest that social scientists' accounts of ‘activism’ have too often tended to foreground and romanticise the grandiose, the iconic, and the unquestionably meaning-ful, to the exclusion of different kinds of ‘activism’. Thus, while there is a rich social-scientific literature chronicling a social history of insurrectionary protests and key figures/thinkers, we suggest that there is more to ‘activism’ (and there are more kinds of ‘activism’) than this. In short, we argue that much can be learnt from what we term implicit activisms which – being small-scale, personal, quotidian and proceeding with little fanfare – have typically gone uncharted in social-scientific understanding of ‘activism’. This paper will reflect upon one example of this kind of ‘implicit’ activism, by re-presenting findings from interviews undertaken with 150 parents/carers, during an evaluation of a ‘Sure Start’ Centre in the East Midlands, UK. From these interviews emerged a sense of how the Centre (and the parents/carers, staff and material facilities therein) had come to matter profoundly to these parents/carers. We suggest that these interviews extend and unsettle many social-scientific accounts of ‘activism’ in three key senses. First: in evoking the specific kinds of everyday, personal, affective bonds which lead people to care. Second: in evoking the kinds of small acts, words and gestures which can instigate and reciprocate/reproduce such care. And third: in suggesting how such everyday, affective bonds and acts can ultimately constitute political activism and commitment, albeit of a kind which seeks to proceed with ‘not too much fuss’.     

Henry More as reader of Marcus Aurelius

ABSTRACT

I examine Henry More’s engagement with Stoicism in general, and Marcus Aurelius in particular, in his Enchiridion Ethicum. More quotes from Marcus’ Meditations throughout the Enchiridion, leading one commentator to note that More ‘mined the Meditations’ when writing his book. Yet More’s general attitude towards Stoicism is more often than not critical, especially when it comes to the passions. I shall argue that while More was clearly an avid reader of the Meditations, he read Marcus not as a Stoic but as a ‘non-denominational’ ancient moralist who confirms a range of doctrines that More finds elsewhere in ancient philosophy. In this sense More continues the Neoplatonic practice of downplaying doctrinal differences between ancient philosophers in order to construct a single ancient philosophical tradition. This is quite different from the approach of his contemporary and fellow Cambridge Platonist, Ralph Cudworth, who was keen to highlight doctrinal differences between ancient philosophers.     

The effect of the driving activity on target detection as a function of the visibility level: Implications for road lighting

The Small Target Visibility model used in road lighting design is based on a strong simplification of the driving task. To specify the driver’s visibility needs in a way consistent with state-of-the-art lighting engineering practice, a field experiment was designed in order to investigate target detection performances, comparing driver and passenger status conditions. Sixteen target visibility levels (VL) were used. In the driver status, 34 participants had to press a button as soon as they detected the target stimulus placed on the experimental lighted section. In the passenger status, the same participants had to detect the target stimulus while the experimenter drove. The results show that the passengers’ performances (detection distance) were higher than the drivers’ performances (p = .0014). Furthermore, the higher the VL, the higher the detection distance (p < .0001). These results lead up to modify the reference scenario in order to take into account human factor components for road lighting design.     

Some differences between phonetic and auditory modes of perception

When third-formant transitions are appropriately incorporated into an acoustic syllable, they provide critical support for the phonetic percepts we call [d] and [g], but when presented in isolation they are perceived as time-varying ‘chirps’. In the present experiment, both modes of perception were made available simultaneously by presenting the third-format transitions to one ear and the remainder of the acoustic syllable to the other. On the speech side of this duplex percept, where the transitions supported the perception of stop-vowel syllables, perception was categorical and influenced by the presence of a preposed [al] or [ar]. On the nonspeech side, where the same transitions were heard as ‘chirps’, perception was continuous and free of influence from the preposed syllables. As both differences occurred under conditions in which the acoustic input was constant, we should suppose that they reflect the different properties of auditory and phonetic modes of perception.     

Hemispheric alpha asymmetries of words with positive, negative, and neutral arousal values preceding tasks of recall and recognition: Electrophysiological and behavioral results from stuttering males and nonstuttering males and females

Hemispheric alpha asymmetries were obtained for stuttering males and nonstuttering males and females for words of positive, negative, and neutral arousal values. Electroencephalographic data were gathered during the presentations of stimulus words and during the actual nonoral recall and recognition of the stimulus items. Stuttering males demonstrated right-hemispheric alpha suppression across stimulus words and tasks as contrasted with left-hemispheric alpha suppression for the nonstuttering males and females. Stuttering males were also shown to recall and recognize fewer words than the nonstuttering subjects across arousal categories. Subjects were also administered a modified version of A. Paivio's (1971, In B. Randhawa & W. Coffman, Eds., Visual thinking, learning, and communication, New York: Academic Press) Individual Differences Questionnaire (IDQ). Results showed our stuttering males to have obtained lower scores on the verbal and imagery questions of the IDQ as compared to the nonstuttering groups. Hemispheric alpha asymmetry results and memory performance from the stuttering males are discussed relative to nonsegmental, right-hemispheric processing strategies.     

Proximal Intentions,Non-executed Proximal Intentions and Change of Intentions

This paper investigates the conceptual and empirical possibility of non-executed, non-conscious proximal intentions, i.e., non-conscious proximal intentions to act that do not turn into a final act, but perhaps are vetoed or overcome by an alternative action. It constructs a conceptual framework in which such cases are justifiably considered ‘proximal intentions’. This is achieved by combining Alfred Mele’s notion of non-conscious proximal intentions together with the notion of trying or striving taken from Brian O’Shaughnessy’s model of action. With this framework in hand we analyze empirical electroencephalography (EEG) findings regarding ‘change of intention’ scenarios. Prior to EEG development (and other brain imaging techniques), one would never consider non-executed, non-conscious proximal intentions a case of intention at all. However, with technological and interpretable development of EEG, a whole group of so called ‘intentions’ appears, and the main aim of the paper is to justify this expanded usage.     

Macroscopic thermodynamics of reaction times

I present a new interpretation of reaction time (RT) data from behavioural experiments. From a physical perspective, the entropy of the RT distribution–the temporal entropy–provides a model-free estimate of the amount of processing performed by the cognitive system. This new measure shifts the focus from the conventional interpretation of RTs being either long or short, into their distribution being more or less complex in terms of entropy. I introduce the formulation of the theory, followed by an empirical test using a large database of human RTs in lexical processing tasks. Using the measure, I obtain estimates of the processing loads to individual stimuli (i.e., words), as well as estimates for the overall rate at which the system processes information in these tasks. The relation between the temporal entropy and the RTs can be captured by a simple linear equation. I argue that this equation constitutes the equivalent of a ‘phase diagram’ of a task, providing indications about the different mechanisms that are at play in it, and locating critical points signalling the transitions between these different mechanisms. The results suggest an adaptive system that adjusts its operational processing speed to the demands of each individual stimulus. This finding is in contradiction with a generalization of Hick’s Law positing a relatively constant processing speed within an experimental context.     

Trait congruence in the study of the cognitive consequences of emotional arousal

This study investigated the possible influence of mood and emotional vulnerability on recall. Mood was induced by projecting highly emotionally laden slides. In the first experiment, 64 female subjects, rated low or high on emotional vulnerability, were tested on recall of mood-congruent, mood-incongruent and neutral words, under mood induction and non-mood induction conditions. Emotionally low-vulnerable subjects recalled more mood-congruent than mood-incongruent words in the mood induction condition, whereas the opposite was the case in the non-mood induction condition. Highly vulnerable subjects recalled more mood-congruent than mood-incongruent words in the non-mood induction condition and fewer mood-congruent words in the mood induction compared with non-mood induction condition. The results are discussed in terms of ‘mood congruence’ (to explain low-vulnerable (LV) subjects' performance) and in terms of ‘trait congruence’ (to explain highly-vulnerable (HV) subjects' performance). In a second experiment, which investigated LV and HV subjects' galvanic skin responses to highly- and low-emotionally laden slides, the highest values were those for HV subjects when exposed to emotional slides. The different activation of LV and HV subjects led us to reconsider previous reasoning regarding mood congruence and trait congruence in the light of the inverted U theory.     

Electrodermal indices in a selected prison sample and students

Electrodermal indices relevant to Eysenck's (1970) theory of criminology and subsequent modifications of this theory were compared in a prison sample selected for ‘good’ home backgrounds and a student sample. A previously developed differential electrodermal conditioning paradigm of social learning was administered to both samples.Selected prisoners displayed significantly less evidence of differential responding throughout the extinction phase (p < 0.01), significantly longer half time recovery (p < 0.01) and significantly less stimulus specific responding in extinction (p < 0.01). Spontaneous fluctuations did not differentiate the samples.Results are discussed with reference to personality measures taken concurrently and it is suggested that significant differences between the samples are comparable to previously reported differences between primary psychopaths and non-psychopaths.     

Empirical evidence claims are a priori

This paper responds to Achinstein’s criticism of the thesis that the only empirical fact that can affect the truth of an objective evidence claim such as ‘e is evidence for h’ (or ‘e confirms h to degree r’) is the truth of e. It shows that cases involving evidential flaws, which form the basis for Achinstein’s objections to the thesis, can satisfactorily be accounted for by appeal to changes in background information and working assumptions. The paper also argues that the a priori and empirical accounts of evidence are on a par when we consider scientific practice, but that a study of artificial intelligence might serve to differentiate them.     

Priming Effects and Free Will

Abstract

I argue that the empirical literature on priming effects does not warrant nor suggest the conclusion, drawn by prominent psychologists such as J. A. Bargh, that we have no free will or less free will than we might think. I focus on a particular experiment by Bargh – the ‘elderly’ stereotype case in which subjects that have been primed with words that remind them of the stereotype of the elderly walk on average slower out of the experiment’s room than control subjects – and I show that we cannot say that subjects cannot help walking slower or that they are not free in doing do. I then illustrate how these cases can be reconciled and normalized within a Davidsonian theory of action to show that, in walking slower, subjects are acting intentionally. My argument applies across various experiments, including those of goal priming. In the final section I argue that the only cases in which priming effects are efficacious are so-called Buridan cases.     

Channel capacity and processing of modality specific information

The synthesis model, designed to explain effects of modality specific information on retention, is presented and tested. The model encompasses qualitative and quantitative components. The qualitative characteristics reflect the physiological properties of the auditory and visual channels. Three parameters are assumed to affect the quantitative efficiency of the channels. Each channel is assumed to have a certain capacity, and processing of information in the channels is determined by situational demands. Furthermore, processing in a channel is regarded as superficial. Increased allocation of processing to the superficial level was manipulated by the use of modality specific distractors and conditions of ‘supracapacity load’. Transformation of information from the visual to the auditory channel was controlled by the use of one mixed-mode and one single-mode experiment. Thirty subjects participated in the mixed-mode experiment and 60 in the single-mode experiment. Both experiments employed an identical distraction task, intervening presentation and free recall of the to-be-remembered items. The results confirmed the predictions of (a) modality specific distraction, (b) supracapacity performance decrement, (c) a larger distraction effect for the auditory channel and (d) transformation effects in the single-mode experiment.     

Unconscious manipulation of free choice by novel primes

The extent to which non-conscious perception can influence behaviour has been a topic of considerable controversy in psychology for decades. Although a challenging task, convincing empirical demonstrations have emerged suggesting that non-consciously perceived ‘prime’ stimuli can influence motor responses to subsequent targets. Interestingly, recent studies have shown that the influence of masked primes is not restricted to target-elicited responses, but can also bias free-choices between alternative behaviours. The present experiment extends these findings by showing that free-choices could also be biased by novel primes that never appeared as targets and therefore could not trigger acquired stimulus–response (S–R) mappings. This new evidence suggests that free-choice behaviour can be influenced by non-consciously triggered semantic representations. Furthermore, the results reported here support accounts of masked priming that posit an automatic semantic categorisation of non-consciously perceived visual stimuli.     

Some effects of attitudinal similarity and exposure on attraction and aggression

Previous research investigating the relationship of attraction and aggression has yielded somewhat equivocal results. The present study investigated the influence of two variables, attitudinal similarity and exposure, on interpersonal attraction and physical aggression. Fifty-four subjects received differential exposure to another individual and were later given information concerning this individual's attitudes. The subject's attraction toward the stimulus person was assessed followed by measures of aggression toward the stimulus person. Analysis of variance indicated that an attitudinally similar other was liked significantly more (p < .01) and aggressed against significantly less (p < .05) than an attitudinally dissimilar other. The exposure variable had no main effect on either attraction or aggression but interacted significantly (p < .05) with the attitudinal variable in producing differential attraction.