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42-467: P600 may refer to: P600 (neuroscience) , an event-related potential or peak in electrical brain activity measured by electroencephalography P600 NEMA contact ratings , the contact rating of smaller NEMA contactors and relays Sendo P600, a model of mobile phone manufactured by Sendo An identifier for Interleukin 13 , a cytokine protein P600 (mountain) ,

84-498: A nominal group in a wording. In various languages, nominal groups consisting of a noun and its modifiers belong to one of a few such categories. For instance, in English , one says I see them and they see me : the nominative pronouns I/they represent the perceiver and the accusative pronouns me/them represent the phenomenon perceived. Here, nominative and accusative are cases, that is, categories of pronouns corresponding to

126-609: A classification for mountains, used in the British Isles [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=P600&oldid=866122800 " Category : Letter–number combination disambiguation pages Hidden categories: Short description

168-431: A singular/plural and a possessive/non-possessive distinction (e.g. chair , chairs , chair's , chairs' ); there is no manifest difference in the form of chair between "The chair is here." (subject) and "I own the chair." (direct object), a distinction made instead by word order and context. Cases can be ranked in the following hierarchy, where a language that does not have a given case will tend not to have any cases to

210-496: A variety of factors, such as gender , number , phonological environment, and irregular historical factors. Pronouns sometimes have separate paradigms. In some languages, particularly Slavic languages , a case may contain different groups of endings depending on whether the word is a noun or an adjective . A single case may contain many different endings, some of which may even be derived from different roots. For example, in Polish,

252-417: Is different from Wikidata All article disambiguation pages All disambiguation pages P600 (neuroscience) The P600 can be elicited in both visual (reading) and auditory (listening) experiments, and is characterized as a positive-going deflection with an onset around 500 milliseconds after the stimulus that elicits it; it often reaches its peak around 600 milliseconds after presentation of

294-481: Is more appealing than semantic reanalysis. For example, a P600 may be elicited in the following sentence: The hearty meal was devouring the kids. This suggests that the reader would rather interpret the sentence as containing a morphosyntactic error (saying "devour ing " instead of "devour ed by ") rather than a semantic one (meals can't devour kids, but can be devoured by them). The interpretation of "semantic P600s" has attracted considerable attention and controversy in

336-663: Is often marked in English with a preposition . For example, the English prepositional phrase with (his) foot (as in "John kicked the ball with his foot") might be rendered in Russian using a single noun in the instrumental case , or in Ancient Greek as τῷ ποδί ( tôi podí , meaning "the foot") with both words (the definite article, and the noun πούς ( poús ) "foot") changing to dative form. More formally, case has been defined as "a system of marking dependent nouns for

378-503: Is that the P600 does not necessarily reflect any linguistic processes per se, but is similar to the P300 in that it is triggered when a subject encounters "improbable" stimuli—since ungrammatical sentences are relatively rare in natural speech, a P600 may not be a linguistic response but simply an effect of the subject's "surprise" upon encountering an unexpected stimulus. Another account

420-453: Is that the P600 reflects error/surprisal propagation due to learning processes that take place during linguistic adaptation and this account has been implemented in a connectionist model that explains several P600/N400 results. Grammatical case A grammatical case is a category of nouns and noun modifiers ( determiners , adjectives , participles , and numerals ) that corresponds to one or more potential grammatical functions for

462-723: Is the process or result of altering nouns to the correct grammatical cases. Languages with rich nominal inflection (using grammatical cases for many purposes) typically have a number of identifiable declension classes, or groups of nouns with a similar pattern of case inflection or declension. Sanskrit has six declension classes, whereas Latin is traditionally considered to have five , and Ancient Greek three . For example, Slovak has fifteen noun declension classes , five for each gender (the number may vary depending on which paradigms are counted or omitted, this mainly concerns those that modify declension of foreign words; refer to article). In Indo-European languages, declension patterns may depend on

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504-399: Is usually elicited by syntactic phenomena. The P600 was originally considered a "syntactic" ERP component, as it is elicited by several types of syntactic phenomena, including ungrammatical stimuli, garden-path sentences that require reanalysis, complex sentences with a large number of thematic roles , and the processing of filler-gap dependencies (such as wh-words that appear at

546-1496: The subject (" I kicked John"), and forms such as me , him and us are used for the object ("John kicked me "). As a language evolves, cases can merge (for instance, in Ancient Greek , the locative case merged with the dative), a phenomenon known as syncretism . Languages such as Sanskrit , Kannada , Latin , Tamil , and Russian have extensive case systems, with nouns, pronouns, adjectives, and determiners all inflecting (usually by means of different suffixes ) to indicate their case. The number of cases differs between languages: Persian has three; modern English has three but for pronouns only; Torlakian dialects , Classical and Modern Standard Arabic have three; German , Icelandic , Modern Greek , and Irish have four; Albanian , Romanian and Ancient Greek have five; Bengali , Latin, Russian, Slovak , Kajkavian , Slovenian , and Turkish each have at least six; Armenian , Czech , Georgian , Latvian , Lithuanian , Polish , Serbo-Croatian and Ukrainian have seven; Mongolian , Marathi , Sanskrit, Kannada, Tamil, Telugu , Malayalam , Assamese and Greenlandic have eight; Old Nubian and Sinhalese have nine; Basque has 13; Estonian has 14; Finnish has 15; Hungarian has 18; and Tsez has at least 36 cases. Commonly encountered cases include nominative , accusative , dative and genitive . A role that one of those languages marks by case

588-577: The "first," "second," "third" and so on. For example, the common "when-then" construction is called the सति सप्तमी (Sati Saptami) or "The Good Seventh" as it uses the locative, which is the seventh case. In the most common case concord system, only the head-word (the noun) in a phrase is marked for case. This system appears in many Papuan languages as well as in Turkic , Mongolian , Quechua , Dravidian , Indo-Aryan , and other languages. In Basque and various Amazonian and Australian languages , only

630-768: The Indo-European languages had eight morphological cases , although modern languages typically have fewer, using prepositions and word order to convey information that had previously been conveyed using distinct noun forms. Among modern languages, cases still feature prominently in most of the Balto-Slavic languages (except Macedonian and Bulgarian ), with most having six to eight cases, as well as Icelandic , German and Modern Greek , which have four. In German, cases are mostly marked on articles and adjectives, and less so on nouns. In Icelandic, articles, adjectives, personal names and nouns are all marked for case, making it

672-585: The Latin casus , which is derived from the verb cadere , "to fall", from the Proto-Indo-European root *ḱad- . The Latin word is a calque of the Greek πτῶσις , ptôsis , lit. "falling, fall". The sense is that all other cases are considered to have "fallen" away from the nominative. This imagery is also reflected in the word declension , from Latin declinere , "to lean", from

714-809: The PIE root *ḱley- . The equivalent to "case" in several other European languages also derives from casus , including cas in French, caso in Italian and Kasus in German. The Russian word паде́ж ( padyézh ) is a calque from Greek and similarly contains a root meaning "fall", and the German Fall and Czech pád simply mean "fall", and are used for both the concept of grammatical case and to refer to physical falls. The Dutch equivalent naamval translates as 'noun case', in which 'noun' has

756-469: The accusative or the vocative cases are placed after the nominative and before the genitive. For example: For similar reasons, the customary order of the four cases in Icelandic is nominative–accusative–dative–genitive, as illustrated below: Sanskrit similarly arranges cases in the order nominative-accusative-instrumental-dative-ablative-genitive-locative-vocative. The cases are individually named as

798-517: The accusative, genitive, and dative have merged to an oblique case, but many of these languages still retain vocative, locative, and ablative cases. Old English had an instrumental case, but neither a locative nor a prepositional case. The traditional case order (nom-gen-dat-acc) was expressed for the first time in The Art of Grammar in the 2nd century BC: Πτώσεις ὀνομάτων εἰσὶ πέντε· ὀρθή, γενική, δοτική, αἰτιατική, κλητική. There are five Cases,

840-501: The beginning of a sentence in English but are actually interpreted somewhere else ). A P600 may be elicited by several kinds of grammatical errors in sentences, such as problems in agreement , such as "the child * throw the toy". In addition to this sort of subject-verb disagreement, P600s have also been elicited by disagreements in tense , gender , number , and case , as well as phrase structure violations. A 2009 study has suggested that these errors elicit stronger P600s than

882-425: The bus stop, in the future John is waiting for us at the bus stop . We will see what will happen in the future . by hand with John This letter was written by hand . I took a trip there with John . All of the above are just rough descriptions; the precise distinctions vary significantly from language to language, and as such they are often more complex. Case is based fundamentally on changes to

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924-606: The functions they have in representation. English has largely lost its inflected case system but personal pronouns still have three cases, which are simplified forms of the nominative, accusative (including functions formerly handled by the dative ) and genitive cases. They are used with personal pronouns : subjective case (I, you, he, she, it, we, they, who, whoever), objective case (me, you, him, her, it, us, them, whom, whomever) and possessive case (my, mine; your, yours; his; her, hers; its; our, ours; their, theirs; whose; whosever). Forms such as I , he and we are used for

966-427: The literature. There are several theories about what computational processes the P600 may be triggered by. Because it often happens in response to grammatical violations or garden path sentences, one theory is that the P600 reflects processes of revision (i.e., trying to "rescue" the interpretation of a sentence that can't be processed normally because of structural errors) and reanalysis (i.e., trying to rearrange

1008-403: The more extensive case system of Old English ). For other pronouns, and all nouns, adjectives, and articles, grammatical function is indicated only by word order , by prepositions , and by the " Saxon genitive " ( -'s ). Taken as a whole, English personal pronouns are typically said to have three morphological cases: Most English personal pronouns have five forms: the nominative case form,

1050-474: The most conservative Germanic language . The eight historical Indo-European cases are as follows, with examples either of the English case or of the English syntactic alternative to case: John waited for us at the bus stop. Obey the law . The clerk gave a discount to us . According to the law ... of (the) The pages of the book turned yellow. The table is made out of wood . Hello, John! O John , how are you! (archaic) at

1092-455: The noun to indicate the noun's role in the sentence – one of the defining features of so-called fusional languages . Old English was a fusional language, but Modern English does not work this way. Modern English has largely abandoned the inflectional case system of Proto-Indo-European in favor of analytic constructions. The personal pronouns of Modern English retain morphological case more strongly than any other word class (a remnant of

1134-424: The oblique case form, a distinct reflexive or intensive form (such as myself , ourselves ) which is based upon the possessive determiner form but is coreferential to a preceding instance of nominative or oblique, and the possessive case forms, which include both a determiner form (such as my , our ) and a predicatively-used independent form (such as mine , ours ) which is distinct (with two exceptions:

1176-707: The older meaning of both 'adjective (noun)' and '(substantive) noun'. The Finnish equivalent is sija , whose main meaning is "position" or "place". Similar to Latin, Sanskrit uses the term विभक्ति (vibhakti) which may be interpreted as the specific or distinct "bendings" or "experiences" of a word, from the verb भुज् (bhuj) and the prefix वि (vi) , and names the individual cases using ordinal numbers. Although not very prominent in modern English, cases featured much more saliently in Old English and other ancient Indo-European languages , such as Latin , Old Persian , Ancient Greek , and Sanskrit . Historically,

1218-429: The other syntactic stimuli that have been implicated. P600s are also known to occur when a sentence contains no outright grammatical error, but must be parsed in a different way than the reader originally expects. These sentences are known as "garden path" sentences, because the reader follows one interpretation of the sentence only to realize later that this interpretation was wrong and he must backtrack to understand

1260-423: The phrase-final word (not necessarily the noun) is marked for case. In many Indo-European , Finnic , and Semitic languages , case is marked on the noun, the determiner, and usually the adjective. Other systems are less common. In some languages, there is double-marking of a word as both genitive (to indicate semantic role) and another case such as accusative (to establish concord with the head noun). Declension

1302-481: The reader sees the word imitate he or she has a P600 response, possibly as a result of re-activating who . These sorts of P600s get stronger as the number of noun phrases active in the sentences increases, suggesting that the P600 generator is sensitive to the level of complexity in a sentence. Kim & Osterhout (2005) demonstrated a so-called "semantic P600" in sentences that are grammatically correct but semantically anomalous, and in which syntactic reanalysis

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1344-405: The right [nominative], the generic [genitive], the dative, the accusative, and the vocative. Latin grammars, such as Ars grammatica , followed the Greek tradition, but added the ablative case of Latin. Later other European languages also followed that Graeco-Roman tradition. However, for some languages, such as Latin, due to case syncretism the order may be changed for convenience, where

1386-410: The right of the missing case: This is, however, only a general tendency. Many forms of Central German , such as Colognian and Luxembourgish , have a dative case but lack a genitive. In Irish nouns, the nominative and accusative have fallen together, whereas the dative–locative has remained separate in some paradigms; Irish also has genitive and vocative cases. In many modern Indo-Aryan languages,

1428-411: The scalp does not mean the P600 is coming from that part of the brain; a 2007 study using magnetoencephalography (MEG) speculates that the generators of the P600 are in the posterior temporal lobe , behind Wernicke's area . The P600 was first reported by Lee Osterhout and Phillip Holcomb in 1992. It is also sometimes called the syntactic positive shift ( SPS ), since it has a positive polarity and

1470-684: The sentence. It is widely accepted that the Ancient Greeks had a certain idea of the forms of a name in their own language. A fragment of Anacreon seems to prove this. Grammatical cases were first recognized by the Stoics and from some philosophers of the Peripatetic school . The advancements of those philosophers were later employed by the philologists of the Library of Alexandria . The English word case used in this sense comes from

1512-434: The sentence. For example, Osterhout & Holcomb (1992) found P600s elicited by the word to in sentences such as The broker persuaded to sell the stock was tall. In sentences such as this, the preferred reading is to interpret "persuaded" as the main verb of the sentence (i.e., "the broker persuaded me"), and upon seeing the word to the reader has to re-analyze the sentence to mean something more like "the broker that

1554-528: The stimulus (hence its name), and lasts several hundred milliseconds. In other words, in the EEG waveform it is a large peak in the positive direction, which starts around 500 milliseconds after the subject sees or hears a stimulus. It is typically thought of as appearing mostly on centro- parietal electrodes (i.e., over the posterior part of the center of the scalp), but frontal P600s have also been observed in several studies. In EEG, however, this distribution at

1596-430: The structure of a sentence that has been interpreted incorrectly because of a garden path). On the other hand, other models suggest that the P600 may not reflect these processes in particular, but just the amount of time and effort in general it takes to build up coherent structure in a sentence, or the general processes of creating or destroying syntactic structure (not specifically because of repair). Another proposal

1638-564: The third person singular masculine he and the third person singular neuter it , which use the same form for both determiner and independent [ his car , it is his ]). The interrogative personal pronoun who exhibits the greatest diversity of forms within the modern English pronoun system, having definite nominative, oblique, and genitive forms ( who , whom , whose ) and equivalently-coordinating indefinite forms ( whoever , whomever , and whosever ). Although English pronouns can have subject and object forms (he/him, she/her), nouns show only

1680-534: The type of relationship they bear to their heads ". Cases should be distinguished from thematic roles such as agent and patient . They are often closely related, and in languages such as Latin, several thematic roles are realised by a somewhat fixed case for deponent verbs, but cases are a syntagmatic/phrasal category, and thematic roles are the function of a syntagma/phrase in a larger structure. Languages having cases often exhibit free word order , as thematic roles are not required to be marked by position in

1722-521: The word is exactly what the reader would expect), but when the sentence is complex because there are a number of noun phrases active. This has most often been the case when the reader has to "re-activate" a word that appeared earlier in the sentence. For example, in a sentence like "Who did you imitate?", the word who appears in the beginning of the sentence but is actually the direct object of imitate , and must be interpreted in that way (i.e., as "you imitated who?"); several studies have found that after

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1764-425: Was persuaded to sell the stock, he was tall". P600s are also elicited by errors in musical harmony, such as when a chord is played out of key with the rest of a musical phrase. This implies that P600s are not "language-specific," but "can be elicited in nonlinguistic (but rule-governed) sequences." Some studies have found a P600 elicited by words where there is no grammatical error and no "garden path" (i.e., where

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