BERDON, J.
The principal issue raised in this appeal is whether the Appellate Court properly concluded that the defendant was not entitled to a jury instruction on the affirmative defense of extreme emotional disturbance because the defendant’s trial testimony had contradicted such a defense.
After a jury trial, the defendant, Michael Person, was convicted of the murder of Leshea Pouncey in violation of General Statutes § 53a-54a (a),1 and of criminal trespass in the first degree in violation of General Statutes § 53a-107 (a) (2).2 The trial court sentenced the defendant to an effective term of imprisonment of forty-eight years. On appeal to the Appellate Court, the defendant argued that the trial court had improperly refused to charge the jury on the affirmative defense of extreme emotional disturbance. State v. Person, 36 Conn. App. 448, 454, 651 A.2d 754 (1994). The Appellate Court affirmed the judgment of the trial court. Id. We granted [344]*344the defendant’s petition for certification to appeal3 and now reverse the judgment of the Appellate Court.
During the trial, defense counsel filed a written request to charge the jury on the defense of extreme emotional disturbance. At the close of the case, the court denied the defendant’s request for two reasons: (1) the defendant on cross-examination had testified that he had not been upset by the events on which he partially relied for the defense; and (2) the defendant had produced insufficient evidence to raise the issue of extreme emotional disturbance. During a colloquy with counsel, out of the presence of the jury, the court stated: “I cannot see extreme emotional disturbance in this case. I don’t see any evidence of it. You are asking in effect for the jury to find the opposite of what the defendant says occurred to support a claim by the defendant that he has offered evidence to support extreme emotional disturbance . . . .” The court further stated: “I assumed from the outset that extreme emotional disturbance would be in this case but I didn’t expect to hear the defendant on the stand denying every question that was asked about him leading to his mental state at various times.” The trial court did instruct the jury on self-defense and on the lesser included offenses of manslaughter in the first degree,4 manslaughter in the second degree and criminally negligent homicide.
The Appellate Court did not reach the issue of whether there was sufficient evidence to warrant an instruction on extreme emotional disturbance because [345]*345it held that if, “as in the present case, the defendant specifically disavows having the requisite mental state for the instruction that he seeks, Cassino5
6 and Zayas6 preclude the defendant from obtaining the contradicting instruction.” State v. Person, supra, 36 Conn. App. 453-54. We disagree.
Section 53a-54a (a), in defining the crime of murder, excepts, as an affirmative defense, a homicide committed by a defendant who acts “under the influence of extreme emotional disturbance for which there was a reasonable explanation or excuse, the reasonableness of which is to be determined from the viewpoint of a person in the defendant’s situation under the circumstances as the defendant believed them to be . . . .” Under such circumstances, if a defendant intentionally causes the death of an individual, but does so under extreme emotional disturbance, the trier of fact may convict the defendant of manslaughter in the first degree in violation of General Statutes § 53a-55 (a) (2).7 State v. Asherman, 193 Conn. 695, 731, 478 A.2d 227 (1984), cert. denied, 470 U.S. 1050, 105 S. Ct. 1749, 84 L. Ed. 2d 814 (1985).
The trial court’s denial of the defendant’s request for an instruction on extreme emotional disturbance raises two issues: (1) whether the defendant’s trial testimony [346]*346precluded such an instruction because it directly contradicted the defense;8 and, if not, (2) whether there was sufficient evidence to warrant the requested instruction. We review each of these issues in turn together with their related facts.
I
The following testimony was presented to the jury. The defendant and Pouncey had been romantically involved and had planned to marry. Pouncey, however, terminated their engagement, after which she commenced a relationship with Donald Moody. The defendant testified that on May 19, 1991, he had forcefully entered Pouncey’s apartment while she was away in order to recover his personal belongings. While the defendant was in the rear bedroom gathering his possessions, Pouncey returned home with her child. The defendant further testified that after speaking on the telephone, Pouncey had confronted him in the bedroom with a can of Mace in one hand and two knives in the other. According to the defendant, Pouncey had instigated a struggle by spraying Mace in his eyes. In the course of the struggle, the defendant stabbed Pouncey. The defendant then fled the apartment and later surrendered himself at the New Haven police station.
On direct examination, the defendant testified, with respect to his state of mind, that he had been “somewhat” upset by the fact that Pouncey had begun dating Moody.9 On cross-examination, however, when asked [347]*347if he was “upset because [he] felt that [Moody] was moving in on [his] gal,” the defendant responded: “Not really.”10 Consequently, the court refused to instruct the jury on the defense of extreme emotional disturbance.
“ ‘A fundamental element of due process is the right of a defendant charged with a crime to establish a defense.’ ” State v. Belle, 215 Conn. 257, 273, 576 A.2d 139 (1990), quoting Washington v. Texas, 388 U.S. 14, 19, 87 S. Ct. 1920, 18 L. Ed. 2d 1019 (1967). The question before us today is whether a defendant forgoes the right to have a jury instructed on a requested defense if the defendant denies having the state of mind required to establish the requested defense.
It is for the jury to evaluate the credibility of the witnesses and the weight to be accorded the evidence. See State v. Breton, 235 Conn. 206, 234, 663 A.2d 1026 (1995). “The jury is free to juxtapose conflicting versions of events and to determine which is more credible.” State v. Adams, 225 Conn. 270, 278, 623 A.2d 42 (1993). “[T]he [jury] can disbelieve any or all of the evidence . . . and can construe [the] evidence in a manner different from the parties’ assertions. . . .” (Citations omitted.) State v. Steiger, 218 Conn. 349, 381, 590 A.2d 408 (1991). Therefore, because the jury was free to disbelieve the defendant’s testimony, his asser[348]*348tions therein did not preclude a jury instruction on extreme emotional disturbance. Rather, as the state correctly conceded at oral argument,11
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BERDON, J.
The principal issue raised in this appeal is whether the Appellate Court properly concluded that the defendant was not entitled to a jury instruction on the affirmative defense of extreme emotional disturbance because the defendant’s trial testimony had contradicted such a defense.
After a jury trial, the defendant, Michael Person, was convicted of the murder of Leshea Pouncey in violation of General Statutes § 53a-54a (a),1 and of criminal trespass in the first degree in violation of General Statutes § 53a-107 (a) (2).2 The trial court sentenced the defendant to an effective term of imprisonment of forty-eight years. On appeal to the Appellate Court, the defendant argued that the trial court had improperly refused to charge the jury on the affirmative defense of extreme emotional disturbance. State v. Person, 36 Conn. App. 448, 454, 651 A.2d 754 (1994). The Appellate Court affirmed the judgment of the trial court. Id. We granted [344]*344the defendant’s petition for certification to appeal3 and now reverse the judgment of the Appellate Court.
During the trial, defense counsel filed a written request to charge the jury on the defense of extreme emotional disturbance. At the close of the case, the court denied the defendant’s request for two reasons: (1) the defendant on cross-examination had testified that he had not been upset by the events on which he partially relied for the defense; and (2) the defendant had produced insufficient evidence to raise the issue of extreme emotional disturbance. During a colloquy with counsel, out of the presence of the jury, the court stated: “I cannot see extreme emotional disturbance in this case. I don’t see any evidence of it. You are asking in effect for the jury to find the opposite of what the defendant says occurred to support a claim by the defendant that he has offered evidence to support extreme emotional disturbance . . . .” The court further stated: “I assumed from the outset that extreme emotional disturbance would be in this case but I didn’t expect to hear the defendant on the stand denying every question that was asked about him leading to his mental state at various times.” The trial court did instruct the jury on self-defense and on the lesser included offenses of manslaughter in the first degree,4 manslaughter in the second degree and criminally negligent homicide.
The Appellate Court did not reach the issue of whether there was sufficient evidence to warrant an instruction on extreme emotional disturbance because [345]*345it held that if, “as in the present case, the defendant specifically disavows having the requisite mental state for the instruction that he seeks, Cassino5
6 and Zayas6 preclude the defendant from obtaining the contradicting instruction.” State v. Person, supra, 36 Conn. App. 453-54. We disagree.
Section 53a-54a (a), in defining the crime of murder, excepts, as an affirmative defense, a homicide committed by a defendant who acts “under the influence of extreme emotional disturbance for which there was a reasonable explanation or excuse, the reasonableness of which is to be determined from the viewpoint of a person in the defendant’s situation under the circumstances as the defendant believed them to be . . . .” Under such circumstances, if a defendant intentionally causes the death of an individual, but does so under extreme emotional disturbance, the trier of fact may convict the defendant of manslaughter in the first degree in violation of General Statutes § 53a-55 (a) (2).7 State v. Asherman, 193 Conn. 695, 731, 478 A.2d 227 (1984), cert. denied, 470 U.S. 1050, 105 S. Ct. 1749, 84 L. Ed. 2d 814 (1985).
The trial court’s denial of the defendant’s request for an instruction on extreme emotional disturbance raises two issues: (1) whether the defendant’s trial testimony [346]*346precluded such an instruction because it directly contradicted the defense;8 and, if not, (2) whether there was sufficient evidence to warrant the requested instruction. We review each of these issues in turn together with their related facts.
I
The following testimony was presented to the jury. The defendant and Pouncey had been romantically involved and had planned to marry. Pouncey, however, terminated their engagement, after which she commenced a relationship with Donald Moody. The defendant testified that on May 19, 1991, he had forcefully entered Pouncey’s apartment while she was away in order to recover his personal belongings. While the defendant was in the rear bedroom gathering his possessions, Pouncey returned home with her child. The defendant further testified that after speaking on the telephone, Pouncey had confronted him in the bedroom with a can of Mace in one hand and two knives in the other. According to the defendant, Pouncey had instigated a struggle by spraying Mace in his eyes. In the course of the struggle, the defendant stabbed Pouncey. The defendant then fled the apartment and later surrendered himself at the New Haven police station.
On direct examination, the defendant testified, with respect to his state of mind, that he had been “somewhat” upset by the fact that Pouncey had begun dating Moody.9 On cross-examination, however, when asked [347]*347if he was “upset because [he] felt that [Moody] was moving in on [his] gal,” the defendant responded: “Not really.”10 Consequently, the court refused to instruct the jury on the defense of extreme emotional disturbance.
“ ‘A fundamental element of due process is the right of a defendant charged with a crime to establish a defense.’ ” State v. Belle, 215 Conn. 257, 273, 576 A.2d 139 (1990), quoting Washington v. Texas, 388 U.S. 14, 19, 87 S. Ct. 1920, 18 L. Ed. 2d 1019 (1967). The question before us today is whether a defendant forgoes the right to have a jury instructed on a requested defense if the defendant denies having the state of mind required to establish the requested defense.
It is for the jury to evaluate the credibility of the witnesses and the weight to be accorded the evidence. See State v. Breton, 235 Conn. 206, 234, 663 A.2d 1026 (1995). “The jury is free to juxtapose conflicting versions of events and to determine which is more credible.” State v. Adams, 225 Conn. 270, 278, 623 A.2d 42 (1993). “[T]he [jury] can disbelieve any or all of the evidence . . . and can construe [the] evidence in a manner different from the parties’ assertions. . . .” (Citations omitted.) State v. Steiger, 218 Conn. 349, 381, 590 A.2d 408 (1991). Therefore, because the jury was free to disbelieve the defendant’s testimony, his asser[348]*348tions therein did not preclude a jury instruction on extreme emotional disturbance. Rather, as the state correctly conceded at oral argument,11 a jury may be instructed on a requested defense theory, even if the defendant has testified to facts that contradict the requested charge, if there is sufficient evidence to warrant the instruction. See State v. Harris, 189 Conn. 268, 273, 455 A.2d 342 (1983).
The Appellate Court’s reliance on State v. Cassino, 188 Conn. 237, 449 A.2d 154 (1982), and State v. Zayas, 3 Conn. App. 289, 489 A.2d 380, cert. denied, 195 Conn. 803, 491 A.2d 1104 (1985), was misplaced. Neither of those cases stands for the proposition that a defendant forfeits a defense theory if he or she testifies to a contradictory fact or conclusion. Our decision in Cassino “was based upon the conclusion that the defendant had failed to introduce sufficient evidence to warrant a self-defense instruction.” State v. Harris, supra, 189 Conn. 274 n.4. Similarly, in Zayas, the defendant requested that the jury be charged on self-defense, but there was insufficient evidence tending to establish that defense. State v. Zayas, supra, 294.
Instructing on a defense for which the defendant has given contradictoiy testimony is particularly appropriate in cases, such as the present one, in which the requested defense involves the defendant’s mental state. The applicability of such a defense theory should not be judged solely upon the defendant’s personal description of his or her own mental status. In fact, we have previously held that “a court may, under certain circumstances, impose a mental status defense [such as extreme emotional disturbance] on an unwilling defendant.” State v. Manfredi, 213 Conn. 500, 516, 569 A.2d 506, cert. denied, 498 U.S. 818, 111 S. Ct. 62, 112 L. Ed. 2d 37 (1990); see State v. Asherman, supra, 193 [349]*349Conn. 729 (jury instructed on extreme emotional disturbance defense over objection of defendant).
This analysis is consistent with the rule that a defendant is permitted to present inconsistent defenses to a jury. State v. Harris, supra, 189 Conn. 273. In Harris, the defendant asserted two inconsistent defenses: (1) an alibi defense; and (2) an affirmative defense that the gun used in the alleged crimes was a toy. Id., 271-72. The state argued that “contrived defenses would result [i]f a defendant could deny participation in a robbery, offer evidence of someone else’s involvement using a toy gun, and still avail himself of the affirmative defense under [General Statutes] § 53a-134 (a) (4).”12 (Internal quotation marks omitted.) Id., 272. We rejected the state’s argument and held that “inconsistent defenses may be interposed in a criminal case. . . . [The fact t]hat a defense is inteiposed which is inconsistent with the defendant’s alibi theory does not preclude an instruction as to that defense. . . . [T]he fact that one defense is on the theory that [the] accused did not commit the offense, as where he relies on alibi, does not deprive him of the right to avail himself of other defenses. ... To compel a defendant to admit guilt in order to invoke a defense effectively relieves the prosecution of proving his guilt beyond a reasonable doubt and frustrates the assertion of the defense itself [350]*350and undermines its policy.” (Citations omitted; internal quotation marks omitted.) Id., 273.
In Mathews v. United States, 485 U.S. 58, 108 S. Ct. 883, 99 L. Ed. 2d 54 (1988), the United States Supreme Court addressed an issue similar to the one raised in this case. In Mathews, the defendant requested a jury instruction on the affirmative defense of entrapment, despite the fact that he had denied commission of the crime. The court held “that even if the defendant denies one or more elements of the crime [or defense], he is entitled to an [instruction on his requested affirmative defense] whenever there is sufficient evidence from which a reasonable jury could find [the defense].” Id., 62. Noting that a defendant may put forward inconsistent defenses, the court stated that “[w]e do not think that allowing inconsistency necessarily sanctions perjury. . . . Inconsistent testimony by the defendant seriously impairs and potentially destroys his [or her] credibility. While we hold that a defendant may both deny [certain] acts . . . and at the same time claim [a defense inconsistent with his or her testimony], the high risks to him [or her] make it unlikely as a strategic matter that he [or she] will choose to do so.” (Citation omitted; internal quotation marks omitted.) Id., 65-66.
Similarly, we hold that no rule of law prevents a jury from being charged, when requested, on the defense of extreme emotional disturbance simply because the defendant has testified that he or she was not upset.13 It is for the trier of fact to determine the weight to be accorded evidence. See State v. Breton, supra, 235 Conn. 234. Therefore, the question of whether a requested charge on extreme emotional disturbance was warranted in this case must be answered by [351]*351determining whether there was sufficient evidence to merit an instruction on the defense.
II
The affirmative defense of extreme emotional disturbance, unknown to the common law, is authorized by § 53a-54a. Proof of this defense by a preponderance of the evidence;14 General Statutes § 53a-12; entitles the defendant to a conviction of manslaughter in the first degree, instead of a conviction of murder. General Statutes § 53a-55. “Section 53a-54a describes the two elements of [the affirmative defense of extreme emotional disturbance]: (1) the defendant committed the offense under the influence of extreme emotional disturbance; and (2) there was a reasonable explanation or excuse for the defendant’s extreme emotional disturbance.” State v. Forrest, 216 Conn. 139, 148, 578 A.2d 1066 (1990). In an effort to “[interpret] the meaning of the phrase extreme emotional disturbance . . . [this court has] enumerated understandable guidelines for instructing a jury in determining the presence or absence of that mental condition”;15 (internal quotation marks omitted) id.; but they are neither conclusive nor exclusive. “[A]n extreme emotional disturbance is one where self-control and reason are overborne by intense feelings such as passion, anger, distress, grief, excessive [352]*352agitation or other similar emotions.” State v. Elliott, 177 Conn. 1, 9, 411 A.2d 3 (1979). “[A] homicide influenced by an extreme emotional disturbance [however] is not one which is necessarily committed in the ‘hot blood’ state but rather can be one brought about by a significant mental trauma that caused the defendant to brood for a long period of time and then react violently, seemingly without provocation.” State v. Asherman, supra, 193 Conn. 733-34. “In the final analysis, the ultimate determination of the presence or absence of extreme emotional disturbance is one of fact for the trier . . . .” (Internal quotation marks omitted.) State v. Raguseo, 225 Conn. 114, 122, 622 A.2d 519 (1993).
If there is sufficient evidence of a legal defense, the defendant is entitled, as a matter of law, to a requested jury charge on that defense. State v. Lewis, 220 Conn. 602, 618-19, 600 A.2d 1330 (1991); State v. Havican, 213 Conn. 593, 597, 569 A.2d 1089 (1990); State v. Fuller, 199 Conn. 273, 278, 506 A.2d 556 (1986); State v. Rosado, 178 Conn. 704, 707-708, 425 A.2d 108 (1979). It is well established in Connecticut that a defendant is entitled to have the jury instructed on any general defense “for which there is any foundation in the evidence, no matter how weak or incredible.” (Internal quotation marks omitted.) State v. Havican, supra, 597; State v. Fuller, supra, 278. This standard is appropriate when a defendant raises a general defense and the state has the burden of disproving that defense beyond a reasonable doubt. General Statutes § 53a-12 (a).16
The “any evidence” standard has been improperly applied, however, to affirmative defenses. See State v. Belle, 215 Conn. 257, 275, 576 A.2d 139 (1990) (license as affirmative defense to criminal trespass); see also [353]*353State v. Bryan, 34 Conn. App. 317, 324, 641 A.2d 443 (1994) (affirmative defense of extreme emotional disturbance).17 In those cases, the fact that it is the defendant who shoulders the burden of proving an affirmative defense by a preponderance of the evidence was not taken into consideration. To the extent that those cases have held that “any evidence” is sufficient for a defendant to be entitled to a requested instruction regarding an affirmative defense, they are overruled. Because the defendant bears the burden of proof of an affirmative defense; General Statutes § 53a-12 (b);18 we now hold that a defendant is entitled to a requested instruction on the affirmative defense of extreme emotional disturbance only if there is sufficient evidence for a rational juror to find that all the elements of the defense are established by a preponderance of the evidence.19
In the present case, despite the defendant’s testimony regarding his state of mind, there was sufficient evi[354]*354dence to require the trial court to instruct the jury on the requested defense of extreme emotional disturbance. “The state of mind of one accused of a crime is often the most significant and, at the same time, the most elusive element of the crime charged. This is especially true where a person has caused the death of another person.” (Internal quotation marks omitted.) State v. Ray, 228 Conn. 147, 155, 635 A.2d 777 (1993). The evidence required to establish a defense based on extreme emotional disturbance often is circumstantial. See State v. Asherman, supra, 193 Conn. 732; State v. Rodriguez, 180 Conn. 382, 404, 429 A.2d 919 (1980) (“[bjecause it is practically impossible to know what someone is thinking or intending at any given moment, absent an outright declaration of intent, a person’s state of mind is usually proved by circumstantial evidence”).
The following evidence pertaining to the defendant’s emotional disturbance was introduced at trial. In 1990, the defendant and Pouncey had an intimate relationship and planned to marry. During that year, the defendant and Pouncey shared an apartment in New Haven until the defendant relocated to Atlanta, Georgia, in June. In September, 1990, the defendant returned to Connecticut and resumed his cohabitation with Pouncey until February, 1991. In April, 1991, the defendant gave Pouncey an engagement ring, which she initially accepted, but soon thereafter returned. The defendant continued to contact Pouncey in the hope that their relationship could be salvaged. After her engagement to the defendant had terminated, Pouncey commenced a relationship with Moody. On April 16, 1991, Pouncey alleged that she was being harassed by the defendant and obtained a restraining order against the defendant. Despite the restraining order, the defendant continued to contact Pouncey.
During the afternoon of May 19, 1991, the day of the murder, the defendant called a friend, Earl Carthens, [355]*355threatening that he “was going to get even with [Pouncey]” and “make her pay for what she did to [him].” Later that day, the defendant met with Pouncey in the hall outside her apartment and spoke with her for approximately twenty minutes. Upon leaving, the defendant spotted Moody approaching Pouncey’s apartment building and rushed to a pay phone to inform Pouncey that “her friend was on his way.” Shortly thereafter, the defendant called again. This time Pouncey handed the receiver to Moody. In his conversation with Moody, the defendant sounded upset and threatened to kill both Moody and Pouncey.20 After the defendant’s telephone call, Pouncey called the police to report the defendant’s harassment and thereafter went out for the evening.
While Pouncey was away from her apartment, the defendant forcibly entered the apartment in order to retrieve his personal belongings. Pouncey returned home with her child while the defendant was in the rear bedroom gathering his possessions. A struggle ensued and, as a result, Pouncey was fatally stabbed. Arkady Katsnelson, an associate medical examiner, testified that in addition to being stabbed in her chest, [356]*356back and buttocks, Pouncey had several defensive wounds on her hands.21 The defendant then fled the apartment and went to Carthens’ home. Carthens testified that the defendant had looked “tired,” “drained” and “exhausted.” Accompanied by Carthens and the pastor of his church, the defendant went to the New Haven police station to surrender himself. Carthens further testified that the defendant had not spoken on the way to the station and had looked as if “he was out of it.” Lieutenant David G. Burleigh, the police officer who had taken the defendant’s oral and written statements, testified that the defendant “was very emotional. He was crying and repeating over and over, ‘just lock me up, just lock me up.’ ”
From this evidence, the jury could have reasonably concluded that “the defendant committed [Pouncey’s murder] under the influence of extreme emotional disturbance for which there was a reasonable explanation or excuse . . . .” General Statutes § 53a-54a (a). Therefore, we conclude that there was sufficient evidence to warrant an instruction, and that the trial court was required to charge the jury on the defense of extreme emotional disturbance as the defendant had requested.
The judgment of the Appellate Court is reversed and the case is remanded to that court with direction to reverse the judgment of the trial court and to remand the case to that court for a new trial.
In this opinion PETERS, C. J., and BORDEN, KATZ and PALMER, Js., concurred.