lucid interval

interval

[in´ter-val] the space between two objects or parts; the lapse of time between two events.AA interval the interval between two consecutive atrial stimuli.atrioventricular interval (AV interval) 1. P–R interval.2. in pacing" >dual chamber pacing, the length of time between the sensed or paced atrial event and the next sensed or paced ventricular event, measured in milliseconds; called also atrioventricular or AV delay.cardioarterial interval the time between the apical beat and arterial pulsation.confidence interval an estimated statistical interval for a parameter, giving a range of values that may contain the parameter and the degree of confidence that it is in fact there.coupling interval the distance between two linked events in the cardiac cycle.His-ventricular (H-V) interval an interval of the electrogram of the bundle of His" >bundle of His, measured from the earliest onset of the His potential to the onset of ventricular activation as recorded on eight of the intracardiac bipolar His bundle leads or any of the multiple surface ECG leads; it reflects conduction time through the system" >His-Purkinje system.lucid interval 1. a brief period of remission of symptoms in a psychosis.2. a brief return to consciousness after loss of consciousness in head injury.PA interval the interval from the onset of the P wave on the standard electrocardiogram (or from the atrial deflection on the high right atrial ECG) to the A wave on the His bundle ECG; it represents intra-atrial conduction time.postsphygmic interval the short period (0.08 second) of ventricular diastole, after the period" >sphygmic period, and lasting until the atrioventricular valves open.P–R interval in electrocardiography, the time between the onset of the P wave (atrial activity) and the QRS complex (ventricular activity).presphygmic interval the first phase of ventricular systole, being the period (0.04–0.06 second) immediately after closure of the atrioventricular valves and lasting until the semilunar valves open.QRST interval (Q–T interval) in the electrocardiogram, the length of time between ventricular depolarization (the Q wave) and repolarization (the T wave); it begins with the onset of the QRS complex and ends with the end of the T wave.VA interval [ventricular-atrial interval] the interval between a ventricular stimulus and the succeeding atrial stimulus; it is equal to the interval" >AA interval minus the interval" >atrioventricular interval.

lu·cid in·ter·val

in psychoses or delirium, a rational period appearing in the course of the mental disorder.

lucid interval

Neurology A period preceding the loss of consciousness and coma in Pts with subdural and epidural hematomas and intracranial edema. Cf Window period.

Lucid interval

LUCID INTERVAL, med. jur. That space of time between two fits of insanity, during which a person non compos mentis is completely restored to the perfect enjoyment of reason upon every subject upon which the mind was previously cognizant. Shelf. on Lun. 70; Male's Elem. of Forensic Medicine, 227; and see Dr. Haslam on Madness, 46; Reid's Essays on Hypochondriasis, 317 Willis on Mental Derangement, 151.
2. To ascertain whether a partial restoration to sanity is a lucid interval, we must consider the nature of the interval and its duration. 1st. Of its nature.: "It must not," says D'Aguesseau, "be a superficial tranquillity, a shadow of repose, but on the contrary, a profound tranquillity, a real repose; it must not be a mere ray of reason, which only makes its absence more apparent when it is gone, not a flash of lightning, which pierces through the darkness only to render it more gloomy and dismal, not a glimmering which unites night to the day; but a perfect light, a lively and continued lustre, a full and entire day, interposed between two separate nights of the fury which precedes and follows it; and to use another image, it is not a deceitful and faithless stillness, which follows or forebodes a storm, but a sure and steady tranquillity for a time, a real calm, a perfect serenity; without looking for so many metaphors to represent an idea, it must not be a mere diminution, a remission of the complaint, but a kind of temporary cure, an intermission so clearly marked, as in every respect to resemble the restoration of health." 2d, Of its duration. "As it is impossible," he continues, "to judge in a moment of the qualities of an interval, it is requisite that there should be a sufficient length of time for giving a perfect assurance of the temporary reestablishment of reason, which it is not possible to define in general, and which depends upon the different kinds of fury, but it is certain there must be a time, and a considerable time." 2 Evan's Poth. on Oblig. 668, 669.
3. It is the duty of the party who contends for a lucid interval to prove it; for a person once insane is presumed so, until it is shown that he has a lucid interval or has recovered. Swinb. 77; Co. Litt. by Butler, n. 185; 3 Bro. C. C. 443; 1 Rep. Con. Ct. 225; 1 Pet. R. 163; 1 Litt. R. 102. Except perhaps the alleged insanity was very long ago, or for a very short continuance. And the wisdom of a testament, when it is proved that the party framed it without assistance, is a strong presumption of the sanity of a testator. 1 Phill. R. 90;1 Hen. & Munf. 476.
4. Medical men have doubted of the existence of a lucid interval, in which the mind was completely restored to its sane state. It is only an abatement of the symptoms, they say, and not a removal of the cause of the disease; a degree of irritability of the brain remains behind which renders the patient unable to withstand any unusual emotion, any sudden provocation, or any unexpected pressing emergency. Dr. Combe, Observations on Mental Derangement, 241; Halsam, Med. Jur. of Insanity, 224; Fodere, De Medecine Legale, tom, 1, p. 205, 140; Georget, Des Maladies Mentales, 46; 2 Phillim. R. 90; 2 Hagg. Eccl. R. 433; 1 Phillim. Eccl. R. 84.
See further, Godolph. 25; 3 Bro. C. C. 443; 11 Ves. 11; Com. Dig. Testimoigne, A 1; 1 Phil. Ev. 8; 2 Hale, 278; 10 Harg. State Tr. 478; Erskine's Speeches, vol. 5, p. l; 1 Fodere, Med. Leg. Sec. 205.

单词	lucid interval
释义	DictionarySeeinterval lucid interval interval [in´ter-val] the space between two objects or parts; the lapse of time between two events.AA interval the interval between two consecutive atrial stimuli.atrioventricular interval (AV interval) 1. P–R interval.2. in pacing" >dual chamber pacing, the length of time between the sensed or paced atrial event and the next sensed or paced ventricular event, measured in milliseconds; called also atrioventricular or AV delay.cardioarterial interval the time between the apical beat and arterial pulsation.confidence interval an estimated statistical interval for a parameter, giving a range of values that may contain the parameter and the degree of confidence that it is in fact there.coupling interval the distance between two linked events in the cardiac cycle.His-ventricular (H-V) interval an interval of the electrogram of the bundle of His" >bundle of His, measured from the earliest onset of the His potential to the onset of ventricular activation as recorded on eight of the intracardiac bipolar His bundle leads or any of the multiple surface ECG leads; it reflects conduction time through the system" >His-Purkinje system.lucid interval 1. a brief period of remission of symptoms in a psychosis.2. a brief return to consciousness after loss of consciousness in head injury.PA interval the interval from the onset of the P wave on the standard electrocardiogram (or from the atrial deflection on the high right atrial ECG) to the A wave on the His bundle ECG; it represents intra-atrial conduction time.postsphygmic interval the short period (0.08 second) of ventricular diastole, after the period" >sphygmic period, and lasting until the atrioventricular valves open.P–R interval in electrocardiography, the time between the onset of the P wave (atrial activity) and the QRS complex (ventricular activity).presphygmic interval the first phase of ventricular systole, being the period (0.04–0.06 second) immediately after closure of the atrioventricular valves and lasting until the semilunar valves open.QRST interval (Q–T interval) in the electrocardiogram, the length of time between ventricular depolarization (the Q wave) and repolarization (the T wave); it begins with the onset of the QRS complex and ends with the end of the T wave.VA interval [ventricular-atrial interval] the interval between a ventricular stimulus and the succeeding atrial stimulus; it is equal to the interval" >AA interval minus the interval" >atrioventricular interval. lu·cid in·ter·val in psychoses or delirium, a rational period appearing in the course of the mental disorder. lucid interval Neurology A period preceding the loss of consciousness and coma in Pts with subdural and epidural hematomas and intracranial edema. Cf Window period. Lucid interval LUCID INTERVAL, med. jur. That space of time between two fits of insanity, during which a person non compos mentis is completely restored to the perfect enjoyment of reason upon every subject upon which the mind was previously cognizant. Shelf. on Lun. 70; Male's Elem. of Forensic Medicine, 227; and see Dr. Haslam on Madness, 46; Reid's Essays on Hypochondriasis, 317 Willis on Mental Derangement, 151. 2. To ascertain whether a partial restoration to sanity is a lucid interval, we must consider the nature of the interval and its duration. 1st. Of its nature.: "It must not," says D'Aguesseau, "be a superficial tranquillity, a shadow of repose, but on the contrary, a profound tranquillity, a real repose; it must not be a mere ray of reason, which only makes its absence more apparent when it is gone, not a flash of lightning, which pierces through the darkness only to render it more gloomy and dismal, not a glimmering which unites night to the day; but a perfect light, a lively and continued lustre, a full and entire day, interposed between two separate nights of the fury which precedes and follows it; and to use another image, it is not a deceitful and faithless stillness, which follows or forebodes a storm, but a sure and steady tranquillity for a time, a real calm, a perfect serenity; without looking for so many metaphors to represent an idea, it must not be a mere diminution, a remission of the complaint, but a kind of temporary cure, an intermission so clearly marked, as in every respect to resemble the restoration of health." 2d, Of its duration. "As it is impossible," he continues, "to judge in a moment of the qualities of an interval, it is requisite that there should be a sufficient length of time for giving a perfect assurance of the temporary reestablishment of reason, which it is not possible to define in general, and which depends upon the different kinds of fury, but it is certain there must be a time, and a considerable time." 2 Evan's Poth. on Oblig. 668, 669. 3. It is the duty of the party who contends for a lucid interval to prove it; for a person once insane is presumed so, until it is shown that he has a lucid interval or has recovered. Swinb. 77; Co. Litt. by Butler, n. 185; 3 Bro. C. C. 443; 1 Rep. Con. Ct. 225; 1 Pet. R. 163; 1 Litt. R. 102. Except perhaps the alleged insanity was very long ago, or for a very short continuance. And the wisdom of a testament, when it is proved that the party framed it without assistance, is a strong presumption of the sanity of a testator. 1 Phill. R. 90;1 Hen. & Munf. 476. 4. Medical men have doubted of the existence of a lucid interval, in which the mind was completely restored to its sane state. It is only an abatement of the symptoms, they say, and not a removal of the cause of the disease; a degree of irritability of the brain remains behind which renders the patient unable to withstand any unusual emotion, any sudden provocation, or any unexpected pressing emergency. Dr. Combe, Observations on Mental Derangement, 241; Halsam, Med. Jur. of Insanity, 224; Fodere, De Medecine Legale, tom, 1, p. 205, 140; Georget, Des Maladies Mentales, 46; 2 Phillim. R. 90; 2 Hagg. Eccl. R. 433; 1 Phillim. Eccl. R. 84. See further, Godolph. 25; 3 Bro. C. C. 443; 11 Ves. 11; Com. Dig. Testimoigne, A 1; 1 Phil. Ev. 8; 2 Hale, 278; 10 Harg. State Tr. 478; Erskine's Speeches, vol. 5, p. l; 1 Fodere, Med. Leg. Sec. 205.
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