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Sources of difficulty in deductive reasoning: The THOG task 总被引:2,自引:0,他引:2
David P. O'Brien Ira A. Noveck George M. Davidson Shalom M. Fisch R. Brooke Lea Jason Freitag 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1990,42(2):329-351
The THOG task presents four designs constructed from two shapes and two colours. Subjects are told that the experimenter has written down one of the shapes and one of the colours and are provided the rule that if, and only if, any design has either the shape or the colour, but not both, written down, then it is a THOG. Finally, they are given an exemplar and are asked to classify the remaining designs. Successful solution requires construction of hypotheses, reasoning under each hypothesis, and comparison of the results under each to reach a final conclusion. Few subjects are able to provide adequate responses on the standard version of the task. We present the results of four experiments, with 160 undergraduates each presented with one of eight versions of the task. Experiments 1 and 2 indicate that (1) some subjects think that the properties that are written down are identical to those of the exemplar, although these are not the same subjects who exhibit the modal error pattern, (2) many subjects correctly understand the disjunction of the rule but fail to consider the hypotheses, and (3) poor initial encoding of the problem is not easily corrected. Experiment 3 investigates the sufficiency of the claim of Griggs and Newstead (1982) that appropriate problem solution follows from explicit presentation of all problem information (including use of positive labels for properties that are not written down), and Experiment 4 investigates the necessity of the claim. The results of Experiments 3 and 4 show that presenting positive category labels does increase the frequency of correct solution; however, positive category labels are not necessary for such improvement. Separation of the labels of the THOG rule from those of the exemplar, or informing subjects that only one other design is a THOG, also increases the frequency of successful solution. The results suggest that many people have some fairly sophisticated reasoning skills. but application of these skills is easily discouraged when the features of the task lead to poor initial encoding. 相似文献
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Heinrich Dennis D. U. Vila Pouca Catarina Brown Culum Huveneers Charlie 《Animal cognition》2020,23(5):951-952
Animal Cognition - In the original publication of the article, the Fig. 4 was erroneously published. 相似文献
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The nature and treatment of stuttering as revealed by fMRI A within- and between-group comparison 总被引:2,自引:0,他引:2
Neumann K Euler HA von Gudenberg AW Giraud AL Lanfermann H Gall V Preibisch C 《Journal of Fluency Disorders》2003,28(4):381-410
This article reviews some of our recent functional magnetic resonance imaging (fMRI) studies of stuttering. Using event-related fMRI experiments, we investigated brain activation during speech production. Results of three studies comparing persons who stutter (PWS) and persons who do not stutter (PWNS) are outlined. Their findings point to a region in the right frontal operculum (RFO) that was consistently implicated in stuttering. During overt reading and before fluency shaping therapy, PWS showed higher and more distributed neuronal activation than PWNS. Immediately after therapy differential activations were even more distributed and left sided. They extended to frontal, temporal, and parietal regions, anterior cingulate, insula, and putamen. These over-activations were slightly reduced and again more right sided two years after therapy. Left frontal deactivations remained stable over two years of observation, and therefore possibly indicate a dysfunction. After therapy, we noted higher activations in persons who stutter moderately than in those who stutter severely. These activations might reflect patterns of compensation. We discuss why these findings suggest that fluency-inducing techniques might synchronize a disturbed signal transmission between auditory, speech motor planning, and motor areas.
Educational objectives: The reader will learn about and be able to: (1) identify regions of brain activations and deactivations specific for PWS; (2) describe brain activation changes induced by fluency shaping therapy; and (3) discuss the correlation between stuttering severity and brain activation. 相似文献
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The neural changes that limit the sensitive period for avian song development are unknown, but neurons in a forebrain region critical for song learning, the lMAN, exhibit experience-driven changes in NMDAR subunit expression that could regulate sensitive period closure. Specifically, NR2B levels in lMAN decrease during song acquisition, potentially reducing synaptic plasticity by decreasing NMDAR EPSC duration and/or affecting NMDAR-coupled intracellular cascades. While rearing birds in isolation extends the sensitive period and also delays the developmental changes in NR2B expression and NMDAR physiology, recent work indicates that a transition to faster NMDAR currents does not preclude further song learning. However, NR2B mRNA expression in isolates remains elevated beyond the age at which NMDAR currents shorten, leaving open the possibility that NR2B levels regulate closure of the sensitive period through effects other than those mediated by NMDAR current duration. To determine whether the experience-driven decrease in NR2B expression in lMAN closes the sensitive period, we promoted this change in gene expression either by treating isolation-reared zebra finches briefly with testosterone (T-isolates) or by allowing males limited access to conspecific song (pre-exposed isolates). We then assessed if these birds could acquire song from tutors after the normal close of the sensitive period. Despite a normal decline in NR2B expression, T-isolate and pre-exposed isolate birds learned tutor songs heard from d65-90, while normally reared birds did not. These findings suggest that the normal decline in NR2B expression with lMAN is not sufficient for sensitive period closure. 相似文献
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A highly familiar type of movement occurs whenever a person walks towards you. In the present study, we investigated whether this type of motion has an effect on face processing. We took a range of different 3D head models and placed them on a single, identical 3D body model. The resulting figures were animated to approach the observer. In a first series of experiments, we used a sequential matching task to investigate how the motion of an approaching person affects immediate responses to faces. We compared observers’ responses following approach sequences to their performance with figures walking backwards (receding motion) or remaining still. Observers were significantly faster in responding to a target face that followed an approach sequence, compared to both receding and static primes. In a second series of experiments, we investigated long-term effects of motion using a delayed visual search paradigm. After studying moving or static avatars, observers searched for target faces in static arrays of varying set sizes. Again, observers were faster at responding to faces that had been learned in the context of an approach sequence. Together these results suggest that the context of a moving body influences face processing, and support the hypothesis that our visual system has mechanisms that aid the encoding of behaviourally-relevant and familiar dynamic events. 相似文献
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We investigated how the difficulty of detecting a shape change influenced the achievement of object constancy across depth rotations for object identification and categorization tasks. In three sequential matching experiments, people saw pictures of morphs between two everyday, nameable objects (e.g., bath-sink morphs, along a continuum between "bath" and "sink" end-point shapes). In each experiment, both view changes and shape changes influenced performance. Furthermore, the deleterious effects of view changes were strongest when shape discrimination was hardest. In our earlier research, using morphs of novel objects, we found a similar interaction between view sensitivity and shape sensitivity (Lawson, 2004b; Lawson & Bülthoff, 2006; Lawson, Bülthoff, & Dumbell, 2003). The present results extend these findings to familiar-object morphs. They suggest that recognition remains view-sensitive at the basic level of identification for everyday, nameable objects, and that the difficulty of shape discrimination plays a critical role in determining the degree of this view sensitivity. 相似文献
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Zusammenfassung
Die Transaktionsanalyse (Berne 1958) sollte vom ursprünglichen Konzept her dazu dienen, personale Strukturen und psychodynamische
Prozesse auch dem Laien verstehbar und nutzbar zu machen. Obwohl dieser Anspruch bei manchen Autoren zu Oberfl?chlichkeit
und „happy-go-lucky” Sicht verw?sserte, zeigt die vor allem unter europ?ischen Transaktionsanalytikern übliche Rückbesinnung
auf die ursprünglichen Inhalte den Umfang klinischer Relevanz der Konzepte für Verst?ndnis und Behandlung der verschiedensten
St?rungen. Dies anhand einer sog. frühen St?rung, dem Borderlinesyndrom, aufzuzeigen, ist Anliegen des vorliegenden Beitrags.
Das Strukturmodell der Ich-Zust?nde dient dabei als Beschreibungsansatz für die Borderlinestruktur, Bezugsrahmen und Skript als Muster für die Entstehung und Aufrechterhaltung der Pathologie, Transaktionen, Spiele, Symbiosen und Passivit?t als Merkmale stabiler Instabilit?t der Beziehungen und Abwertungen und Grandiosit?ten als Beispiele für Abwehrmuster. Es folgen praxisorientierte überlegungen und Hinweise zum therapeutischen Vertrag als Grundlage des Arbeitsbündnisses, zu Methoden der Ent?ngstigung im Therapieproze?, zu Begegnung und Beziehung als Substrat für korrigierende Erfahrungen, heilendes Klima und Entdramatisierung des realen Geschehens. Die Ausführungen
enden mit transaktionsanalytischen überlegungen zu übertragung, Gegenübertragung und dem Umgang mit Regressionsprozessen.
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