Assessment of long-term memory in brain-damaged patients.

A standardized questionnaire that tested the ability to recognize the names of TV programs broadcast for a single year was found to provide an efficient method of examining long-term memory in patients with brain damage of diverse common etiologies. Ss were 28 brain-damaged patients (mean age 32.14 yrs, mean education 11.59 yrs) and 28 controls matched for age and education. Contrary to the widely accepted view that remote memory is relatively invulnerable to disruption caused by cerebral disease, recognition memory was least efficient for titles of older programs in both brain-damaged and control groups. The relative degree of deficit in patients with brain lesions proved to be minimal for the most recently aired programs as compared with more remote information. Findings are discussed with respect to studies of markedly amnesic patients. Methodological problems involved in the assessment of remote memory are also considered. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Immediate versus delayed visual memory task performance among schizophrenic patients and normal control subjects

In an exploratory study, 10 schizophrenic patients and 10 normal control subjects performed immediate and delayed memory tasks, which were variants of previously developed continuous performance tests. Both tasks required participants to identify five-digit numbers which were repeated. Numbers were presented in series for 500 ms each and separated by a 500-ms time-out period. In the immediate memory task, subjects were to respond if a number was identical to the one that had immediately preceded it. The delayed memory task differed from the first task in that a longer delay (3.5 s) between stimuli was introduced, and during this delay distracter stimuli appeared. While normal control subjects performed accurately on both tasks (exceeding 80% correct detections), schizophrenic patients performed poorly, performing worse on the delayed memory task than on the immediate memory task. Rates of commission errors (responses made to similar, but not identical numbers) were nearly equal between groups on the immediate memory task, but on the delayed memory task normal control subjects made relatively more commission errors while schizophrenic patients made fewer commission errors. No differences in response latencies were observed between subject groups or tasks. This paradigm may prove useful in discriminating subtle differences in immediate and delayed memory capability among psychiatric populations and normal control subjects.     

Therapeutic responses to delayed recall: Beyond recovered memory.

Heated controversy has arisen over the advisability of making recovery of traumatic memories a central intervention strategy in psychotherapy for adults survivors of childhood sexual abuse. This article addresses why such an approach can be deleterious, discusses alternatives to memory-focused treatment, and presents core strategies for facilitating self-management of intrusive recall in order to promote client autonomy and empowerment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Immediate memory in sequential tasks.

Factors effecting the memory capacity are basic to understanding sequential tasks. The evidence indicates immediate memory is sometimes subject to decay, but that interference from interpolated items has a much larger effect. Interference effects are particularly great when the S must hold items in store while responding to previously stored material within an ongoing serial task. The ability of S to use time to reorganize the stimuli for storage works against the decay tendency. Only in rare instances does S store a pure representation of the stimulus; rather he must be viewed as an active information handler applying his knowledge of the nature of the stimulus and response to reduce his memory load. (56 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Short-term memory: A comparison between frontal and nonfrontal right- and left-hemisphere brain-damaged patients.

Tested 2 groups of brain-damaged patients (n = 60 and 17) and 2 groups of controls (n = 28 and 7) on 4 different short-term memory tasks, each designed to measure the amount of information registered (0-sec delay recall) and retained after a delay of 10 sec. in 1 of 3 (visual, auditory, and kinesthetic) sensory modalities, using a variety of stimulus materials. Differences between the brain-damaged and control groups were largely due to the reduced capacity of the brain damaged to register information. Ss with anterior cerebral damage did more poorly than Ss with posterior damage on both visual and auditory short-term memory tasks. No significant differences were found between right- and left-hemisphere-damaged Ss. (26 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Impairment in abstract responses of schizophrenics, neurotics, and brain-damaged patients

Attempted to identify a deficit in information input that may be specific to schizophrenia. The Ss were 60 male 19–58 yr old veterans representing 5 groups of 12 each: normals, neurotics, paranoid schizophrenics, nonparanoid schizophrenics, and brain-damaged patients. In the present and previous studies scores on single- and multiple-proverbs tests were analyzed to show effects of stimulus enrichment and practice gain in identifying this deficit. Previous studies differentiate normals and schizophrenics, demonstrate the deficit over a range of schizophrenic severity, and show that the deficit is independent of general loss of competence. Results of the present study indicate that the deficit is present over the paranoid–nonparanoid continuum; that it is absent in normals, neurotics, and brain-damaged patients; and that it is not a function of such intellectual factors as education and vocabulary. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Immediate and delayed recall of words and pictures.

Examined free and serial recall of words and pictures associates in 3 experiments with 156 Ss. In immediate free recall, presentation of pictorial material increased only the secondary memory component of recall, relative to conditions involving presentation of verbal materials. No such facilitation occurred in immediate serial recall. In delayed recall tests, negative recency effects were obtained only for verbal materials, in both free and serial recall. Recency effects were either nonnegative or positive with pictures as to-be-remembered material. Results are discussed in terms of the locus of word-picture differences and the adequacy of verbal memory model explanations for them. (French summary) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Immediate and delayed primacy and recency effects in performance evaluation.

Serial position of a single poor or good performance was manipulated in a series of average performances to examine its effect on performance ratings. In Study 1, 333 undergraduate Ss viewed four videotaped lectures in one session. Overall performance ratings showed a recency effect when good performance occurred last. In Study 2, 208 Ss made observations over 4 days. The recency effect was significant when poor performance occurred last. Interpretation of results was based on (a) the attention decrement hypothesis, which suggests that recency effects result when Ss maintain attention, and (b) the finding of greater weighting of negative information in the selection interview (N. Schmitt, see PA, Vol 60:02009; see also E. C. Webster, 1982). Ratings of the single inconsistent performance indicated an assimilation effect. A recent poor or good inconsistent performance was rated more similarly to preceding average performance. A schema appears to bias inconsistent extreme performance toward the stable impression already established. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The organization of arithmetic facts in memory: evidence from a brain-damaged patient

We report a single case study of a brain-damaged patient with impaired arithmetic performance. Three principal findings are presented: First, in a task involving production of answers to simple arithmetic problems, the patient's performance was far better for subtraction than for addition or multiplication. Second, in all arithmetic operations performance was generally much better for problems potentially solvable by rule (e.g., 5 + 0) than for problems requiring retrieval of specific facts (e.g., 5 + 3). Third, the dissociation between subtraction and the other arithmetic operations obtained in the production task was not observed in a verification task. The implications of these findings for claims concerning the organization of stored arithmetic facts are discussed.     

The representation of arithmetic facts in memory: results from retraining a brain-damaged patient

This single case study was designed to gather evidence regarding whether the mental representations mediating multiplication fact retrieval make use of single or multiple codes. MC is a brain-damaged volunteer whose numerical processing impairments were limited to multiplication fact retrieval. He relearned three sets of multiplication facts. Each set was relearned in one of three input formats: Arabic, written verbal, or spoken verbal. Following training all facts were tested in all input formats. MC's posttraining performance was virtually error free and showed no effects of input format. However, reaction-time data showed fact retrieval was fastest when the training format matched the test format. Results are discussed in relation to single- and multiple-code models of multiplication fact retrieval.     

An MMPI scale to separate brain-damaged from functional psychiatric patients in neuropsychiatric settings.

Developed an empirical MMPI scale, the Psychiatric–Organic (P–O) scale, to separate brain-damaged from functional psychiatric patients. It consisted of 56 items, which significantly differentiated 40 organic (mean age, 48.3 yrs) and 60 functional patients (mean age, 40.0 yrs) in a psychiatric hospital. Upon cross-validation with 361 male patients under 60 yrs of age, it was found capable of separating organics from process and reactive schizophrenics, alcoholics, and neurotics, as well as patients with character disorders and affective psychoses. Additionally, it was found that by using the scale in combination with a traditional brain-damage test (the Benton Visual Retention Test), better discrimination could be achieved than was possible with either measure alone. The comparative probabilities of functional and organic diagnoses for various P–O scale ranges are presented. (16 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Microgenetic analysis of word associations in schizophrenic and brain-damaged patients.

Associations to the Kent-Rosanoff list of words were categorized as being "mature" or "immature" following the schema outlined by previous research (see 33: 8338). In that research, some support was found for the hypothesis that schizophrenics respond in a more "immature" manner than normals. The present study repeats the former one, adding a second group for comparison (a group of organics) in addition to the control group of normals. The results did not support the former study. Organics were found to be perseverative in "meaningful" responses to the word stimuli, but not to repeat irrelevant ones. From Psyc Abstracts 36:04:4JQ64M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The rotation of drawings by brain-damaged patients.

2 hypotheses were tested with the Block Design subtest of the Wechsler Intelligence Scale and the Drawing Version of the Block Design Rotation Test: (1) Brain-damaged patients rotate significantly more than non-brain-damaged patients, and (2) The factors influencing rotation in the blocks test would be the same in the drawing version. Ss consisted of 20 brain-damaged patients, 25 non-brain-damaged psychiatric patients, and a control group of 25 normal persons. It was found that rotation effects in a drawing version of a task requiring the copying of designs discriminated between brain-damaged and non-brain-damaged Ss. The relative influence of the factors affecting the appearance of the rotation effect in all Ss was shown to be different in the drawing version than in the blocks version. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Intradimensional reversal shift performance in brain-damaged and chronic alcoholic patients.

Examined impaired set-shifting behavior frequently reported in brain-damaged Ss. Using a simple E-paced, 2-choice, visual, intradimensional reversal shift task, samples of brain-damaged (n = 24), alcoholic (n = 28), and control (n = 24) male patients were compared on errors, reaction time, and behavioral impulsivity (finger lift before signal). Alcoholic Ss were not significantly different from controls on any of the measures. As expected, brain-damaged Ss had significantly more total errors, longer reaction times, and higher impulsivity scores than controls. Differences in errors appeared to be due to difficulty in maintaining the perceptual and motor set rather than in set shifting. The importance of investigating disruptions in set maintenance in the performance of brain-damaged Ss is emphasized. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Successive responses to simultaneous stimulation in elderly patients with memory disorder.

"This study was designed to test the notion that memory disorder, clinically ascertained in elderly persons, may be related to a breakdown in the kind of storage system which has been adduced to explain successive responses to simultaneous stimulation in normal young adults… . The results… support the hypothesis." From Psyc Abstracts 36:04:4FI09I. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Immediate reinforcement versus delayed reinforcement in teaching a basic interview technique.

Reports results of an immediate-reinforcement vs a delayed-reinforcement exercise in teaching counselors-in-training a basic interview skill (open-end leads). 30 state employment service interviews involved in a 2-yr paraprofessional training program served as Ss. 3 dependent variables were used as criterion measures: number of open-end leads used, percentage of client talk time, and average length of client response. Pre- and posttest measures of the dependent variables were taken from 20-min interviews utilizing role-playing clients. An analysis of variance and a post hoc analysis revealed significant differences in 2 of the dependent variables, number of open-end leads was not significant. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Immediate spatial order memory and item memory in sixth-grade children as a function of reader ability.

16 good and 16 poor 6th-grade readers served as Ss. Exp I tested immediate order memory for strings of 4 and 6 consonants that were either redundant (R) or nonredundant (NR) based on positional frequencies of letters in printed English. Both reader groups were better in retrieving order for R strings; poor readers were inferior to good readers on both R and NR 6-letter strings. Exp II tested for immediate order memory and immediate item memory for strings of 8 digits and strings of 8 consonants. Good readers were better than poor readers on all tasks. However, order memory appeared to be more strongly related to reading ability than was item memory. (15 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Differences in test performance between brain-damaged, schizophrenic, and medical patients.

Gave 18 white male hospitalized patients from each of 3 diagnostic categories (brain-damaged, schizophrenic, and medical) a battery of 9 psychological tests, including 5 from the Halstead Impairment Index, the Bender Visual-Motor Gestalt Test, the Trail Making Test (R. Reitan), and 2 tests from the WAIS. 16 measures were obtained, and the 3 groups of Ss were compared on each. The performance of the brain-damaged was significantly inferior to the medical patients on 14 of the 16 measures, and to the schizophrenics on 9 of the 16. There were no significant differences between the schizophrenics and the medical group on any of the 16 measures. When the scores on the 4 different tests were combined into Z scores, 78% of the brain-damaged, 67% of the schizophrenics, and 78% of the medical Ss were correctly diagnosed for presence or absence of brain damage. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Multivariate analysis of the conceptual behavior of schizophrenic and brain-damaged patients.

A cross-validation of the findings of previous research by the authors and Grassi (see 33: 3260) with regard to the conceptual behavior of schizophrenics and brain-damaged Ss. The multivariate analysis involves the conceptualization of a given response along coordinate axes of 2 continua: open-closed, public-private. The previous findings are reproduced, discussed, and compared and related to the Grassi findings. 15 refs. (PsycINFO Database Record (c) 2010 APA, all rights reserved)