Ontogeny of early event memory: I. Forgetting and retrieval by 2- and 3-month-olds

In 2 experiments, 2-month-olds, trained in the mobile conjugate reinforcement paradigm for two daily sessions, showed retrieval deficits relative to 3-month-olds. In Experiment 1, tests of simple forgetting administered to 2-month-olds after retention intervals of 1, 3, 6, and 9 days (a period over which 3-month-olds remember the contingency) indicated that their forgetting was complete after delays greater than 1 day. In Experiment 2, reactivation treatments administered to 2- and 3-month-olds alleviated forgetting after a retention interval of 28, but not 35, days in the 3-month-old group only. Previously, alleviated forgetting by a reactivation treatment had been demonstrated in 2-month-olds after a delay of 18 days. In both of the present experiments, performance of the two age groups did not differ during the immediate retention test at the end of training. These results suggest that neither the age of the infant nor the age of the memory determines memory retrieval after long delays; instead, it appears to be determined by the length of time that a memory has been inaccessible (i.e., forgotten). We propose that factors which delay simple forgetting will correspondingly increase the length of the interval over which a retrieval cue can still be effective in a reactivation paradigm, irrespective of the age of the infant or the age of the memory.     

樟柳碱所致学习和记忆障碍动物模型的探讨

本实验采用水迷津法、步下法和步入法,用樟柳碱制备学习和记忆障碍的动物模型。结果表明,樟柳碱(10毫克/公斤)可使小鼠引起学习障碍,其表现为通过水迷津全程的时间延长,而且小鼠进入盲路的错误次数明显增多。樟柳碱(10毫克/公斤)可使小鼠引起记忆障碍,在樟柳碱的影响下,小鼠步下平台或步入暗箱的潜伏期明显缩短,并使它们的错误次数增多。本实验结果进一步表明,测定小鼠的记忆障碍,步入法似乎比步下法更为敏感。     

MAKING SENSE OF SOUL AND SABBATH BRAIN PROCESSES AND MAKING OF MEANING

Abstract. Making sense of soul and Sabbath necessitates understanding these phenomena experientially and then suggesting "biochemical" or empirical analogues. Soul, which is defined as the core or essence of a person (or group), includes a working memory of personally purposeful behavior. The states of the soul are reflected in the states of the mind and their physiological correlates-the states of the brain. Such uniqueness appears similar to the biblical cycle of creation-Sabbath-consciousness and its analogue in the biorhythm of brain-mind-that is, waking and work, sleeping and rest, dreaming (rapid eye movement [REM]) and the reorganization-integration process that is ever making sense of our senses by synthesizing what they mean to us. Working memory and biorhythm, therefore, are crucial for the making of meaning, and meaning is the making of soul.     

Acting or listening: Adult age differences in source recall of enacted and nonenacted statements

This study explored age-related differences in item and source recall of enacted and nonenacted items in a sample of healthy adults between the ages of 35 and 80 years (N=1,000). Participants were screened on a variety of demographic, psychometric, and biological variables. They were presented with sentences (e.g., Lift the book) that they either read or enacted. They were then asked to recall the object of each stimulus sentence (item recall) and to identify its format of encoding (source recall). Age-related decrements were observed both in item and source memory, although age differences in source memory were more accentuated than in item memory. Further, the results indicated an overall impairment of source memory across age when individual differences in the demographic, psychometric, and biological variables were taken into consideration.     

“攻击性行为”社会认知的实验研究

采用两种不同的方法对人类“攻击性行为”社会认知的某些特点进行探索。结果表明：①再认过程中,被试对被攻击者的辨别率（Ａ＇）明显高于攻击者,Ｂ″也具有明显特征。证明人类的外显记忆更多倾向记忆“灾难现象”。②偏好测试中,被试偏好攻击者明显多于被攻击者。证实了“攻击性行为”社会认知实验性分离的存在。也就是说学习攻击性图片在人类记忆中,产生了“攻击性行为”社会认知的启动效应。同时也证实了内隐与外显记忆之间存在任务分离的加工演变过程。③偏好测试中出现被试对陌生人（中性人物）的偏好率明显高于攻击与被攻击者的总和。我们认为这是间接启动效应,是外显记忆和内隐记忆在选择上发生冲突继而导致倾向一致的结果。     

脑外伤患者内隐记忆康复护理可行性研究

探讨脑外伤患者在高强度练习和准确反馈条件下,内隐学习知识效应和底层规则迁移易化能力。结果发现：①脑外伤患者在汉字整体偏好深加工的非显著特征学习与对照组一样有效;在笔划浅加工的显著特征学习,明显低于对照组;在自由回忆和再认的重复测验中,患者组与对照组存在显著性差异。②脑外伤患者学习记忆具有整体性、直观性、模糊抽象性、无意识性等特点。③脑外伤患者存在着内隐学习知识效应和内隐知识学习效应,且随着训练强化和训练方法的改进,有增强和外显记忆转化的趋势。     

Text recall and text recognition with and without a title

Abstract: Recall and recognition memory for a text were investigated in two conditions: in one, subjects could understand the text well because they were presented with the title of the text prior to reading it; in the other, they could not understand the text so well because they were not presented with the title. Results showed that recall was better and sentence recognition more accurate when subjects had understood the text. A 1-h delay of the memory test after reading decreased recall performance, but not recognition performance. Different memory representations may have been operating when subjects had understood the text from when they had not.     

Memory dysfunction in mild aphasics

The effect of mild aphasia ( n = 9), as a result of subarachnoid haemorrhage (SAH), was evaluated against one matched (sex, age, and education) control group suffering from SAH of unknown origin without aphasia, and against one matched healthy control group. According to aphasia testing (Reinvang & Engvik, 1980), criteria for a classical diagnosis were not met. Therefore, the patients were characterized as mild aphasics: They generally displayed intact audo-verbal comprehension and repetition abilities, and they demonstrated a fluent, spontaneous speech. However, they showed phonemic and semantic paraphasias, with self-corrections; a few patients displayed alexia and agraphia. Memory performance of these three groups was evaluated by a neuropsychological test battery, designed to tap various components of verbal memory function. From the results it was concluded that: (a) Short-term memory is impaired, as regards the phonological loop and the central executive in working memory, whereas maintenance rehearsal is unaffected, given that the demands on phonological coding is minimized, (b) long-term memory is also generally impaired, whereas long-term learning and forgetting by means of subject-performed tasks proceeds within a normal range. Impairments were hypothesized to reflect less efficient central executive functions of working memory, involving generation of less appropriate semantic codes and phonological representations, (c) mildy aphasic patients are not subjectively aware of their own memory deficits, and (d) aphasia classification by means of standard procedures do not sufficiently characterize the nature of a mildy aphasic patient's memory problems.     

字符的知觉表征及其启动

实验以英文单词,汉字和图片为材料,采用速示补笔测验测量了大脑左右半球的启动效应。结果是,如果学习与测验的字体和大小不变,则视觉启动右半球高于左半球。其他材料不产生这种效应。这表明,至少有一个分离的系统对构成启动的汉字的视觉表征进行编码,此系统在右半球表征形状特异形状特异信息更有效;对字符抽象特征的表征,两半球无显著差异,速示补笔测量的是前语义水平的知觉表征,是一种知觉（数据驱动）内隐记忆测验。     

Effectiveness of color in picture recognition memory

Investigations were conducted into the effectiveness of color in picture recognition memory. In the study phase, half of the pictures were presented in color and the other half in black and white. In the test phase, half were presented in the same color mode as the study pictures and the other half in the other mode. In immediate and 1-week-delayed tests, the recognition performance was highest when color pictures were used in both the study and test phases. The recall for the color mode of the study pictures, however, was not as good, even with the color pictures. This suggests that the effectiveness of color in picture recognition is not necessarily due to the memory for colors in the pictures themselves, but is probably due to the distinctiveness of features highlighted by the colors. We also found that in the recall performance for the color mode it was more difficult to detect the deletion of colors than to detect their addition.