PMC:2570072 / 2137-3310 JSONTXT

{"project":"2_test","denotations":[{"id":"18982114-7233192-38625771","span":{"begin":299,"end":303},"obj":"7233192"},{"id":"18982114-3185711-38625772","span":{"begin":316,"end":320},"obj":"3185711"},{"id":"18982114-3185711-38625773","span":{"begin":815,"end":819},"obj":"3185711"}],"text":"Three examples of such experiments are shown in Figure 1. The first example (Figure 1A) shows an example of an ‘object’ working memory task (memory of the identity of a stimulus). This type of short-term memory has been investigated by the delay-match-to-sample (DMS) experiment (Fuster and Jervey, 1981; Miyashita, 1988) in which the animal is required to retain the identity of a sample stimulus (an image shown on a computer screen) during the delay interval, and respond differently if the following test stimulus was identical or different from the sample stimulus. Figure 1A shows rasters and trial-averaged firing rates of a cell recorded in IT cortex, both in the case in which the presented stimulus was familiar (left panel), and in the case in which the stimulus was unfamiliar (right panel) (Miyashita, 1988). For stimuli that are familiar, the elevated rate distribution during the delay period is stimulus specific, i.e. each visual stimulus evokes a characteristic pattern of delay activity. When unfamiliar stimuli are presented, the recorded neurons may have elevated selective rates during stimulation, but no delay activity after the stimulus is removed."}

{"project":"TEST0","denotations":[{"id":"18982114-119-127-765920","span":{"begin":299,"end":303},"obj":"[\"7233192\"]"},{"id":"18982114-136-144-765921","span":{"begin":316,"end":320},"obj":"[\"3185711\"]"},{"id":"18982114-234-242-765922","span":{"begin":815,"end":819},"obj":"[\"3185711\"]"}],"text":"Three examples of such experiments are shown in Figure 1. The first example (Figure 1A) shows an example of an ‘object’ working memory task (memory of the identity of a stimulus). This type of short-term memory has been investigated by the delay-match-to-sample (DMS) experiment (Fuster and Jervey, 1981; Miyashita, 1988) in which the animal is required to retain the identity of a sample stimulus (an image shown on a computer screen) during the delay interval, and respond differently if the following test stimulus was identical or different from the sample stimulus. Figure 1A shows rasters and trial-averaged firing rates of a cell recorded in IT cortex, both in the case in which the presented stimulus was familiar (left panel), and in the case in which the stimulus was unfamiliar (right panel) (Miyashita, 1988). For stimuli that are familiar, the elevated rate distribution during the delay period is stimulus specific, i.e. each visual stimulus evokes a characteristic pattern of delay activity. When unfamiliar stimuli are presented, the recorded neurons may have elevated selective rates during stimulation, but no delay activity after the stimulus is removed."}

{"project":"0_colil","denotations":[{"id":"18982114-7233192-765920","span":{"begin":299,"end":303},"obj":"7233192"},{"id":"18982114-3185711-765921","span":{"begin":316,"end":320},"obj":"3185711"},{"id":"18982114-3185711-765922","span":{"begin":815,"end":819},"obj":"3185711"}],"text":"Three examples of such experiments are shown in Figure 1. The first example (Figure 1A) shows an example of an ‘object’ working memory task (memory of the identity of a stimulus). This type of short-term memory has been investigated by the delay-match-to-sample (DMS) experiment (Fuster and Jervey, 1981; Miyashita, 1988) in which the animal is required to retain the identity of a sample stimulus (an image shown on a computer screen) during the delay interval, and respond differently if the following test stimulus was identical or different from the sample stimulus. Figure 1A shows rasters and trial-averaged firing rates of a cell recorded in IT cortex, both in the case in which the presented stimulus was familiar (left panel), and in the case in which the stimulus was unfamiliar (right panel) (Miyashita, 1988). For stimuli that are familiar, the elevated rate distribution during the delay period is stimulus specific, i.e. each visual stimulus evokes a characteristic pattern of delay activity. When unfamiliar stimuli are presented, the recorded neurons may have elevated selective rates during stimulation, but no delay activity after the stimulus is removed."}