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Assessment
LOGOGEN
المؤلف:
John Field
المصدر:
Psycholinguistics
الجزء والصفحة:
P165
2025-09-13
41
+
-
20
LOGOGEN
A mechanism which collects evidence of the presence of a word in spoken or written input. An early activation model of lexical access (Morton, 1969) is based upon a system of thousands of logogens, each responsible for a single word in the user’s lexicon. As evidence for a particular word accumulates, the activation of its logogen increases. Each logogen has a ‘threshold’. When it reaches the threshold, it ‘fires’ and the word is treated as identified. At this point, the listener/reader is able to access the cognitive system for information about the word, including its meaning. (Note that this implies that meaning is not accessed until after recognition.) The speaker/writer is able to transmit the word to a response buffer, where it is stored, ready to be uttered.
Once a logogen has fired, its activation level only endures for about a second before decaying. However, it does not return to its original value for some considerable time. In this way, the model accounts for repetition priming effects, where a word is recognised more readily if it has been heard recently. Furthermore, each time a logogen reaches its threshold, the threshold is lowered a little: thus accounting for frequency effects, where words of high frequency are recognised more rapidly than infrequent ones.
See also: Activation, Lexical access
Further reading: Harris and Coltheart (1986)
الاكثر قراءة في Linguistics fields
اخر الاخبار
اخبار العتبة العباسية المقدسة
الآخبار الصحية
"المهمة".. إصدار قصصي يوثّق القصص الفائزة في مسابقة فتوى الدفاع المقدسة للقصة القصيرة
(نوافذ).. إصدار أدبي يوثق القصص الفائزة في مسابقة الإمام العسكري (عليه السلام)
قسم الشؤون الفكرية يصدر مجموعة قصصية بعنوان (قلوب بلا مأوى)
