Effects of handedness consistency and saccade execution on eyewitness memory in cued- and free-recall procedures*

Identifying characteristics that distinguish between people with relatively good versus poor episodic memory is an important goal of eyewitness-memory research, as is identifying activities that can improve people’s ability to retrieve episodic memories. Consistency of hand preference is a trait associated with the quality of people’s episodic memory and repetitive saccade execution is an activity known to improve people’s ability to retrieve episodic memories. These factors were examined in relation to cued and free recall of a staged criminal event. Individuals with inconsistent hand preference (versus consistent) remembered more on a cued-recall test and also freely recalled a larger amount of victim information. Repetitive saccade execution did not increase cued recall but did increase free recall of victim information. Theoretical implications are discussed, as is potential practical significance, with an emphasis on the size of the observed effects.     

Overconfidence in Probability and Frequency Judgments: A Critical Examination

The overconfidence observed in calibration studies has recently been questioned on both psychological and methodological grounds. In the first part of the article we discuss these issues and argue that overconfidence cannot be explained as a selection bias, and that it is not eliminated by random sampling of questions. In the second part of the article, we compare probability judgments for single events with judgments of relative frequency. Subjects received a target individual's personality profile and then predicted the target's responses to a series of binary questions. One group predicted the responses of an individual target, while a second group estimated the relative frequency of responses among all target subjects who shared a given personality profile. Judgments of confidence and estimates of relative frequency were practically indistinguishable; both exhibited substantial overconfidence and were highly correlated with independent judgments of representativeness.     

Noncompetition Agreements and the Counseling Profession: An Unrecognized Reality for Private Practitioners

Restrictive covenants are proven means of limiting competition and need to be understood by counselors. The authors consider the American Counseling Association's (ACA) position on noncompetition agreements between employers and employees in light of case law from other service professions and conclude that ACA members are uninformed and available sources of information (i.e., ACA Code of Ethics and Standards of Practice, ACA, 1995) do not provide needed information. The absence of information about this important topic puts members at risk in an increasingly competitive private practice market. The authors propose guidelines for responding to this issue.     

The significance of psycho‐peristalsis and tears within the therapeutic relationship

This paper represents a heuristic study of the significance of involuntary, intuitive gut responses (psycho‐peristalsis) and tears within the therapeutic relationship. Autobiographical material and qualitative data were gathered from case‐notes and semi‐structured interviews with four client/co‐participants. Data on occurrences of psycho‐peristalsis and tears were collected from 92 clients seen within a six‐year period. Eleven elements of a ‘general constitutional structure of experience’ were identified. A central finding of the study concerns the gut's apparent ability to ‘pick up’, at an unconscious level, significant material that might otherwise have been overlooked. The research suggests some possible clues to the process of unconscious communication and healing, and adds an interesting psychological dimension to recent findings in the fields of neuroscience and cell biology which amount to the discovery of a ‘second brain’ in the walls of the small intestine. These phenomena are examined in the light of theoretical debates in counselling and psychotherapy.     

“I and thou”: Another barrier to societal change?

The purpose of this study was to examine cognitive barriers to the incorporation of information about societal discrimination against groups of which the individual is a member. Information about discrimination, personal efficacy, and the control of reality was presented to comparable groups of students enrolled in courses on women. Items were phrased either in terms of the self (first-person singular) or generically (in the third person). The results showed that individuals are more aware of discrimination against others than against themselves, and are more likely to attribute personal efficacy and control to themselves than to others. It is suggested that the differential use of identical information when applied to the self vs others is a cognitive mechanism that leads people to ignore evidence about sociostructural biases that affect themselves.     

Linear correlates in the speech signal: the orderly output constraint

Neuroethological investigations of mammalian and avian auditory systems have documented species-specific specializations for processing complex acoustic signals that could, if viewed in abstract terms, have an intriguing and striking relevance for human speech sound categorization and representation. Each species forms biologically relevant categories based on combinatorial analysis of information-bearing parameters within the complex input signal. This target article uses known neural models from the mustached bat and barn owl to develop, by analogy, a conceptualization of human processing of consonant plus vowel sequences that offers a partial solution to the noninvariance dilemma--the nontransparent relationship between the acoustic waveform and the phonetic segment. Critical input sound parameters used to establish species-specific categories in the mustached bat and barn owl exhibit high correlation and linearity due to physical laws. A cue long known to be relevant to the perception of stop place of articulation is the second formant (F2) transition. This article describes an empirical phenomenon--the locus equations--that describes the relationship between the F2 of a vowel and the F2 measured at the onset of a consonant-vowel (CV) transition. These variables, F2 onset and F2 vowel within a given place category, are consistently and robustly linearly correlated across diverse speakers and languages, and even under perturbation conditions as imposed by bite blocks. A functional role for this category-level extreme correlation and linearity (the "orderly output constraint") is hypothesized based on the notion of an evolutionarily conserved auditory-processing strategy. High correlation and linearity between critical parameters in the speech signal that help to cue place of articulation categories might have evolved to satisfy a preadaptation by mammalian auditory systems for representing tightly correlated, linearly related components of acoustic signals.     

Comparison of Graphic Symbol Learning in Individuals with Aphasia and Right Hemisphere Brain Damage

This study compared the differences in performance on recognition of graphic symbols across time by individuals with aphasia, individuals with right-hemisphere brain damage, and neurologically normal adults. The subjects, seen individually, learned 40 Blissymbols. The symbols were selected so that the effects of symbol translucency and complexity on the recognition of graphic symbols could be examined. A paired-associate learning paradigm was used to teach the symbol–referent pairs to subjects. The results indicated that individuals with aphasia and neurologically normal adults do not differ significantly in recognition of graphic symbols. However, individuals with right-hemisphere damage recognized fewer symbols compared to individuals with aphasia and normal adults, suggesting that they have difficulty in associative learning of graphic symbols. Additionally, translucency was found to be a potent factor in the recognition of Blissymbols by all groups. The finding that individuals with severe chronic aphasia can learn and retain graphic symbols has significant clinical implications for aphasia rehabilitation.     

The Relations of Pro-Drug-Use Myths With Self-Reported Drug Use Among Youth at Continuation High Schools1

Drug-use myths, questionable beliefs regarding the effects of drug use, may help to explain why people engage in self-injurious drug-use behavior. While clinicians and applied social researchers have used this concept of drug-use myths extensively when developing substance abuse prevention or cessation programs, drug belief-type myth measures have not been investigated empirically. The present study examined the internal consistency and discriminant validity of a drug-use myth measure among 362 continuation (alternative) high school youth and found it to be discriminable from demographic, drug use, and other psychosocial measures. Controlling for its relations with its correlates, social desirability, perceived friends' drug use, ethnicity items, and gender, the myth measure remained significantly associated with 4 drug-use measures. Future research regarding drug use myths as predictors of drug use is encouraged based on these results.