Orgasm is one of the most intense pleasures attainable to an organism, yet its "Orgasm rectal response" mechanisms remain poorly understood.
On the basis of existing literatures, this article introduces a novel mechanistic model of sexual stimulation and orgasm. In doing so, it characterizes the neurophenomenology of sexual trance and climax, describes parallels in dynamics between orgasms and seizures, speculates on possible evolutionary origins of sex differences in orgasmic responding, and proposes avenues for future experimentation.
Here, a model is introduced wherein sexual stimulation induces entrainment of coupling mechanical and neuronal oscillatory systems, thus creating synchronized functional networks within which multiple positive feedback processes intersect synergistically to contribute to sexual experience.
These processes generate states of deepening sensory absorption and trance, potentially culminating in climax if critical thresholds are surpassed. The centrality of rhythmic stimulation and its modulation by salience for surpassing these thresholds suggests ways in which differential orgasmic responding between individuals—or with different partners—may serve as a mechanism for ensuring adaptive mate choice. Because the production of rhythmic stimulation combines honest indicators of fitness with cues relating to potential for investment, differential orgasmic response may serve to influence the probability of continued sexual encounters with specific mates.
Given that reproduction is the bottom line of evolutionary fitness, it is unsurprising that orgasm would be a source Orgasm rectal response intense pleasure Pfaus et al. Although these mechanisms exhibit extensive homology across species, there may also be important variability based on differences in niche and nervous system complexity Georgiadis, Despite several intriguing neuroimaging investigations Georgiadis et al.
Here, I introduce a model in which the rhythmic nature of sexual activity is central for understanding the phenomenology
Orgasm rectal response sexual trance and orgasm. Further, I suggest this mechanism implies particular ways in which aspects of sexual responding have been shaped by evolution to promote adaptive mate choice.
This stimulation is typically achieved with either physical manipulation of the genitals from body—body contact, or sometimes from vibrotactile
Orgasm rectal response devices. Although orgasm-producing activities are usually focused on the genitals, orgasm sometimes achieved by stimulating other body parts, and sometimes even through thought alone.
Some aspects of orgasmic experience may be unique to humans, but many of these mechanisms are shared across all mammals, all "Orgasm rectal response," and even invertebrates Izhikevich, Sexual climax, however, involves more than just the release of male-specific fixed action patterns for ejaculation. Rather, behavioral and physiological processes suggestive of orgasm have been observed Orgasm rectal response a wide variety of both male and female organisms, involving distinct affective displays e.
That is, if it is the case that males vary in their rhythm-producing abilities, and if this variability correlates with genetic quality, then females could select better genes for their offspring if they bias reproduction toward these fitter males.
For most of evolution, it may have been the case that rhythmic ability and rhythm sensitivity were primarily selected for in the context of female mate choice. The possible adaptive significance of rhythmic ability is suggested by the complexity of dynamics involved in sexual activities. First, in order to generate steady rhythmic motion, it is necessary for the nervous system to drive motoric effector systems precise frequencies and amplitudes such that forces spatially and temporally align to regulate the frequency of ongoing oscillations.
These control challenges are further compounded when this body is being used to precisely stimulate a separate mechanical system, which may itself be oscillating or gyrating. Furthermore, optimal interaction involves modulating activity based on cues ranging from gross movements, to vocal signals, to subtle patterns of emotional expression.
The more variables to be integrated, the more difficult this integration becomes, and the more sophistication required for the controlling nervous system.
Some of these factors would be important for all reproducing organisms; others would be unique to humans. Human sexual performance depends on being capable of not only switching between multiple rhythms, but of inferring the best times for these changes. In this way, sexual interactions may test not only the sensorimotor quality of mates but also the sensitivity of their social intelligence.
That is, the more attentiveness devoted to a sexual interaction, the more likely that either the experience or sexual partner is valued, and so the more likely that there will be a desire for future interaction, and so the more likely that there either is or will be investment in that particular relationship.
Investment signaling might be a particularly important factor in humans, both because of the high levels of resources necessary for successful child rearing Geary, and also because humans can consciously modulate the quality of interactions based on complex social goals Tomasello, However, there may be unique mechanisms by which sexual compatibility and orgasm function as tests of mate quality in humans.
Although such evolutionarily ancient adaptations could be sufficient for explaining many aspects of orgasm, rhythms may also explain important response properties in more recently evolved structures, such as the neo-cortex.
Specifically, I propose that rhythms may Orgasm rectal response particularly likely to affect cortical dynamics via entrainment of neural synchrony, thus enhancing perceptual vividness and emotional intensity. There have been numerous studies exploring the potential adaptive significance of orgasm.
One of the novel contributions of this paper is a characterization of proximate-level mechanistic details by which ultimate-level evolutionary selective pressures were served Tinbergen, The model is also compatible with several other evolutionary hypotheses of orgasm e. Rather, the neurophysiological underpinnings of sexual trance and orgasm suggest a mechanism so powerful that it is likely to have had a profound impact on mate choice in both sexes. I propose that synchrony promotes the intensity of sexual experience through at least three mechanisms: On the level of basic neurophysiology, neurons are more likely to fire action potentials "Orgasm rectal response" their inputs arrive within a narrow window of time relative to each other Schutter, This temporal summation suggests a straightforward role for synchrony in enhancing neural signaling: Experiences have tactile, visual, auditory, olfactory, and gustatory aspects, all of which are associated in specific ways based on their common causation by particular multi-aspect properties of the world Orgasm rectal response, Although still awaiting empirical verification, there are several reasons to believe that sexual rhythms are likely to entrain synchronous brain oscillations.
First, it is clear that at least some degree of rhythmic Orgasm rectal response facilitates sexual enjoyment Joannides, ; Kaplan, and that an overly irregular or erratic rhythm can be disruptive. A second reason to think sexual rhythms can entrain brain oscillations is their multi-modal richness. Sexual activity either interpersonal or solitary frequently involves synchronized rhythmic production of related somatic, visceral, visual, auditory, olfactory, or gustatory signals.
This multimodal informational synergy may not only provide clearer consciousness of percepts relating to sexual stimulation but may also provide synergistically greater entrainment effects.
Indeed, increased comprehension of stimulus characteristics has been observed to increase neural entrainment from the rhythmic patterns associated with language and music Burger et al. Multimodal synergy may serve similar functions for enhancing Orgasm rectal response potency of sexual stimulation Rowe, Further, sexual stimulation is such that greater attention is likely to result in greater enjoyment. The more one can attend, the better sex feels; and the better sex feels, the more one wants to attend.
This setup provides a bidirectional and mutually reinforcing relationship between pleasure and attention, thus instantiating positive feedback toward deepening sexual experience. Preliminary evidence suggests that a bidirectional relationship between pleasure and entrainment exists for music perception Trost et al.
Although entrainment-related attention may be of a highly concentrated variety, it is also possible that more diffusely focused attention may produce maximal pleasure in some individuals. This may vary not only between people but also within the same person depending on the nature of the sexual activity. Whichever aspects of sexual experience are most rewarding, similar positive feedback is likely to occur with respect to patterns of attending that facilitate those experiences.
The sensations of arousal are both pleasurable in-and-of-themselves and also allow for more effective sexual stimulation e. That is, "Orgasm rectal response" affordances Gibson, and signal transduction properties of an aroused body are better suited for facilitating positive feedback amplification of pleasure, possibly via mechanisms of neural entrainment.
The present model of orgasm and sexual trance — and ecstatic experience more generally — is one in which rhythmic perception and action lead to entrainment, enhancing perception of entraining stimuli, thereby further enhancing entrainment, thus creating a positive feedback cycle of deepening sexual absorption.
In this way, progression into deeper states of sexual enjoyment may lead to qualitatively different experiential dynamics. Rather, many of the qualities of sexual pleasure may specifically be driven by a synchrony-facilitated state of sensory absorption leading to trance.
Our conscious field of awareness has limited capacity, with upper bounds to how much we can be aware of at any point in time. We partially overcome these limitations by biasing the degree to which different representations are active within conscious experience i.
However, this process is not without Orgasm rectal response. Enhanced processing of some representations can come at the expense of reduced cognitive resources being available for others.
Enhancing arousal and synchrony can both be thought of as means of increasing the brightness, focus, or width of this spotlight, but not unboundedly. With respect to body awareness, intensely focusing on immediate sensations—such as those produced by rhythmic stimulation — is likely to reduce the amount of mental capacity available for other things, such as self-narratives Damasio, Such an experience of sensate focusing and altered self-processing may be most appropriately referred to as a kind of trance state.
That is, the reasons we enjoy sexual experiences may overlap heavily Orgasm rectal response the reasons we enjoy musical experience, both Orgasm rectal response terms of proximate i. Some aspects of this model are likely unique to humans and their advanced capacity for high-level symbolic cognition Tomasello, Six factors have been identified as characterizing flow states Csikszentmihalyi, Most of these factors would be similarly apt for describing the kinds of peak experiences associated with sexual rhythms, and rhythm-induced trance-like states may be an important reason that sex is such an effective source of flow.
Both sexual and non-sexual
Orgasm rectal response states may be rewarding because of enhanced engagement with pleasurable activities, allowing self-processes to be outcompeted for attentional resources, thus allowing for deeper pleasurable engagement. Importantly, it should be noted that although sexual activity involving genital stimulation may be particularly conducive to sensory absorption, a trance model could also be appropriate for describing a variety of less-explicit sexual interactions, ranging from kissing to dancing, and perhaps even some kinds of intimate conversation.
This understanding of sexual experience as fundamentally related to trance or flow leads to many testable hypotheses. For further hypotheses and proposed experiments, see Appendix. If deactivation of frontal midline structures were observed during sexual interaction something that would be difficult to measure in real timethen this might suggest disruption of self-related processing of the kind present in trance states Heinzel et al.
However, considering the methodological challenges of studying sexual climax with neuroimaging, and given that literature only has a few small-sample-size studies, caution is needed in interpreting either "Orgasm rectal response" presence or absence of findings.
Much of orgasmic experience can probably be explained as
Orgasm rectal response intensification of sexual pleasure and a deepening of the previously described altered states of consciousness. However, it should also be noted that distinct emergent properties Anderson, could be associated with different degrees of sexual absorption, perhaps with qualitatively different dynamics for different levels of trance. In these ways, the neurophenomenology of orgasm is both similar to and continuous with other forms of sexual trance.
However, unique aspects of orgasmic experience arise from major physiological and neuroendocrine changes accompanying sexual climax.
Furthermore, these central pattern generators may also send collaterals to both hypothalamic and brainstem nuclei that regulate neuromodulator, neuropeptide, and opioid levels Pfaus et al.
Alternatively, more indirect pathways might be involved, as would be the case if spontaneous muscle contractions themselves caused systemic neurochemical changes, perhaps via ascending inputs from stretch-receptor stimulation Ferguson, ; Odent, Moreover, to the extent that trance is associated with strongly synchronous neural activity, this may allow for the greatest degree of convergent inputs to hypothalamic and brainstem structures, thus causing the release of these hormones and neurochemicals to coincide with peak trance.
Orgasm has been likened to the rush of heroin injection Chessick, ; Holstege et al. In these ways, the intense pleasure of orgasm is produced by a complex probably opioid-dominated neurochemical cocktail being administered during a peak experience of sensual trance, thus creating an even deeper state of sexual ecstasy.
First, they note some forms of epilepsy are capable of generating orgasm-like pre-ictal auras. Finally, they observe that some aspects of orgasmic expression can be likened to the uncoordinated motor responses present during grand mal seizures and argue that widespread fMRI activations during orgasm suggest similar mass activations as observed in epilepsy.
Notably, both sexual stimulation and tooth brushing involve rhythmic stimulation via high-bandwidth sensory channels. Considering the importance of neural synchrony in the pathogenesis of seizures Sobayo et al. For both sexual stimulation and reflex seizures, rhythmic inputs may to entrain a synchronized functional network through which neural signals can more readily propagate Liao et al.
With respect to sexual stimulation, elevated synchrony could promote greater intensity of experience and perhaps paroxysmal events. With respect to seizures, elevated synchrony could promote conditions under which anomalous firing patterns are more likely to percolate across the brain and thus produce much of the pathophysiology of epilepsy.
Depending on where the dysregulated activity spreads, this disrupted information processing could "Orgasm rectal response" with the ability of the brain to model self and world, thus disrupting consciousness.
These activation cascades, however, may be more self-limiting in orgasm and more dysregulated in epilepsy. Theta rhythms are also heavily implicated in models of temporal lobe epilepsy Arcaro et al. Spindle activity is commonly interpreted as a marker of reactivation of hippocampal-based memories Andrade et al.
In theory, increased copulatory-phase theta activity could indicate the establishment of a network of enhanced pre-orgasmic functional connectivity, with subsequent spindle activity indicating the learning of partner characteristics from Orgasm rectal response sexual stimulation.
There are multiple evolutionarily sensible reasons for sexual climax not to be triggered too easily, such as avoiding wasteful energetic expenditures, missed mating opportunities, poorly chosen mating partners, potentially dangerous situations from poorly timed distractions, or failing to provide adequately reinforcing stimulation to a desired partner. In the following sections, I will describe potential factors influencing orgasms as variable-threshold systems, considering both proximate mechanisms and evolutionary selective pressures.
The involvement of the prostate in the mechanisms of ejaculation was. in response to the orgasmic contractions, stimulating the prostate and. The male orgasm: pelvic contractions measured by anal probe. Bohlen JG, Held JP, Sanderson MO. Pelvic muscle contractions during sexual response can be. “Anal and prostate response, including orgasm, is not linked to sexual orientation —plenty of heterosexual men like to explore it with female.
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Stronger support would be obtained if adaptive neural entrainment devices were shown to be effective interventions for either clinical practice or personal enhancement Santostasi et al. If males were motivated by, and taken to the point of, orgasm in the same way as females, those advantageous qualities would not be needed, since self-interest would be enough.
Self-referential processing, rumination, and cortical midline structures in major depression. Some of these factors would be important for all reproducing organisms; others would be unique to humans. The Journal of Sexual Medicine. It does question the evolutionally theory about stimulation for ovulation [ 4 ].
They are commonly associated with other unthinking works, including burly spasms in multiple areas of the fullness, a extensive euphoric furore and, oft-times, assemblage movements and vocalizations. Man orgasms on the whole emanation from corporeal earthy stimulation of the penis in males typically accompanying ejaculation Help, and the clitoris in females.
The stamina effects abutting the accommodating orgasm are discrete. There are myriad physiological responses over voluptuous project, including a devil-may-care form fabricated by way of prolactin, as spectacularly as changes in the inner upset technique such as a evanescent wane in the metabolic energy of monumental parts of the cerebral cortex while there is no silver or increased metabolic motion in the limbic i.
Orgasm in non-human animals has oldfangled contrived significantly deficient than orgasm in humans, but delve into on the rationale is perpetual.
There are populous important outcomes from the responsive muscle contractions in the female orgasm. A number of these outcomes are structural and these structural outcomes have a direct egregious effect on the well-being of the woman. Granted these unobstructed physiological outcomes may or may not have an adaptive dead letter, they impress the well-being of the woman and include structural load operation, continence, and sexual concern.
These benefits of orgasm for mature women continue a lifetime; positive outcomes do not end at menopause—female urinary incontinence and pain in the crop back, alert s Forces, and knee s are not a de facto consequence of aging.
So although the conveyance of sperm helps the stance of clone and is considered the major use of the orgasm, that reading is limited; glossing the aggrandizement of the female orgasm in maintaining pelvic perplex muscle mode of expression and missing the gala of the clitoral gland in maintaining pelvic overwhelm muscle air.
The verge of that paper is to insinuate that the role of the pelvic floor muscles in female orgasmic return has lots more unthinking and more wide-ranging physiological outcomes suited for the female than the reproductive primacy perspectives suggested in many studies to era. Clearly defining the structural esteem of the pelvic defeat muscles in female orgasmic response would have incontestable epidemiological outcomes for all women. September 01, Accepted:
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- The male orgasm: pelvic contractions measured by anal probe.
You may would deep down same to be knowing of what its distinguishing functions or rewards are.
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To tell him or not to tell him?Orgasm is the sudden discharge of accumulated sexual excitement during the sexual response . Orgasms can be achieved by a variety of activities, including vaginal, anal or oral sex, non-penetrative sex or masturbation. Orgasm may also be. Female orgasm in response to visual stimuli without physical sexual cancer, rectal disease, anxiety, depression and other psychological..
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