Learning artificial orthographies: Further evidence of a nonanalytic acquisition procedure

Previous research (Byrne, 1984) showed that adults who learned to read an orthography representing phonetic features (voicing, place of articulation) did not readily obtain usable knowledge of the mapping of phonetic features onto orthographic elements, as evidenced by failure to generalize to partially new stimuli. The present Experiment 1 used a different method of detecting learning savings during acquisition. Subjects learned a set of complex symbols standing for phones, with the elements representing voicing and place. In a second acquisition set, the signs for voicing were reversed. Learning speed was not affected, which was consistent with the claim that feature-element links went unnoticed in initial acquisition. In Experiment 2, some subjects were instructed to "find the rule" embodied in the orthography. None did, and acquisition rates were no different from those of uninstructed subjects. In Experiment 3, subjects had 4 h of training on the orthography, with consistent feature-symbol mapping for half of the subjects and arbitrary pairings for the remainder. No reaction time advantage emerged in the consistent condition, which is further evidence of nonanalytic acquisition. The results are related to data from children learning to read.     

The evolution of leadership during group development

This paper is based on the view that the theory of the group-as-a-whole is illuminated and clarified by a developmental perspective. Beck's theory of group development is used as the framework within which the evolution of four leadership roles across nine developmental phases are discussed. Leadership is defined as a shared function in which four participants play important roles in a dialectical process through which the structure of a group is developed, maintained, reinterpreted or modified as needed. Data are presented on verbal participation and on a sociometric questionnaire to illustrate changes in the four leaders' behavior and the members' perceptions of them across the phases of group development.     

Modality-repetition and attentional effects on reflex blinking in infants and adults

The ability of a brief prepulse to inhibit reflexively elicited startle is a robust phenomenon in adults of several species but is weak or absent in infants. The possibility that afferent processing of the prepulse is inadequate in infants was tested by assessing the integrity of two other types of reflex modulation that occur in modality-specific paths, that is, attenuation by repetition of same-modality stimuli and enhancement by modality-selective attention. The reflex, measured by electromyographic activity of the muscle controlling blink, was elicited by intense light flashes or noise bursts preceded by brief acoustic or visual prepulses and delivered during attention-directing acoustic or visual foregrounds that evoked cardiac deceleration. Modality-repetition effects were evidenced by smaller peak blink magnitude and longer latency of blinking to same than to different modality pairs and did not differ as a function of age (4-month-old infants or college students). Attention effects were also seen in both infants and adults and, in accord with previous findings, were evident in magnitude for infants and latency for adults. Thus, immaturity in paths mediating these effects could not explain delayed development of prepulse inhibition. Other possibilities include delayed maturation of extrinsic inhibition or of transient-processing systems.     

Hue naming: A test of the validity of Werner and Wooten’s average observer

Fifteen subjects scaled monochromatic lights ranging from 460 to 640 nm by assigning percentages to the names blue, green, yellow, and red, representing the proportion of these hues perceived in the lights. The resulting hue-naming functions were compared to those predicted from the opponent-chromatic response functions of Werner and Wooten’s (1979b) proposed average observer. The agreement between the two sets of functions was reasonably good, which strengthens the validity of their average observer.     

Numerical representations and intuitions of probabilities at 12 months

Recent research shows that preverbal infants can reason about single‐case probabilities without relying on observed frequencies, adapting their predictions to relevant dynamic parameters of the situation (Téglás, Vul, Girotto, Gonzalez, Tenenbaum & Bonatti, 2011 ; Téglás, Girotto, Gonzalez & Bonatti, 2007 ). Here we show that intuitions of probabilities may derive from the ability to represent a limited number of possibilities. After watching a scene containing moving objects of two ensembles, 12‐month‐olds looked longer at an unlikely than at a likely single‐case outcome when the objects were within the parallel individuation range. However, they did not do so when the scene contained the same ratio between ensembles but a larger number of objects. At the same time, they could form rational expectations about single‐case outcomes in scenes containing the same large number of objects when they could exploit subtle physical parameters induced by the objects’ movements and their spatial configuration. Our findings demonstrate that at early stages of development the mental representations involved in probability estimations of future individual situations are powerful and sophisticated, but at the same time they depend on infants’ overall cognitive architecture, being constrained by the numerical representations spontaneously induced by the situations.     

How Christian Spiritual and Religious Beliefs Help and Hinder Counselors' Empathy Toward Clients

The critical incident technique was used to examine how counselors' religion and spirituality help and hinder counselor empathy toward clients. Twelve counselors holding Christian beliefs identified 242 helping and 25 hindering incidents that formed 14 helping and 3 hindering categories. Categories reflected counselors relying on a natural connection to their spirituality, drawing from empathic roots in their religion or spiritual experience, and using commonalities shared with clients as a means of empathizing. Implications for research, counselor education, and counseling practice are discussed.